Nutrient chapter

Betalains

A family of nitrogen-containing dietary plant pigments, including betacyanins and betaxanthins. This collection separates betanin, betanidin, indicaxanthin, vulgaxanthin I and neobetanin. It covers lipid oxidation, vitamin E preservation, myeloperoxidase/chloride chemistry, Nrf2 responses, intestinal inflammatory signaling and red-cell death pathways. Nonessential phytochemicals: no established human deficiency syndrome. Cell assays, isolated proteins and human food-exposure studies remain distinct; betalains are neither betaine nor dietary nitrate.

55 recorded mechanisms · 0 availability situations · 3 preserved sources. Draft and verified records are labeled separately.

Read recorded mechanisms Open recursive mind map

The mechanisms

What the sources say this nutrient does, one relationship at a time. Plain wording comes first; the technical statement follows.

Betanin is the 5-O-beta-glucoside of betanidin.
Betanin → Betanidin source_derived_draftungraded
Experimental context and source evidence
dose
Assay-specific submicromolar to micromolar concentrations; oral arm 300 mL beet juice with 120 mg betanin
duration
Kinetic assays; urine collected 2-4 h after ingestion
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Cell-free biochemical systems and four human volunteers
limitations
Chemical activity does not establish clinical efficacy or a dietary iron interaction. Identity only; not a demonstrated human conversion rate.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Cell-free biochemical systems and four human volunteers
plain_language
Betanin is the 5-O-beta-glucoside of betanidin.
primary_references
Betalains--a new class of dietary cationized antioxidants. (2001). https://pubmed.ncbi.nlm.nih.gov/11714300/ DOI: 10.1021/jf010456f
route
In vitro addition; separate oral juice arm
tissue
Lipid emulsions, membranes, LDL; urine arm separate
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 17–25
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Cell-free biochemical systems and four human volunteers · source_derived_draft · unverified_draft
## betalains-betanin-identity Betanin is the 5-O-beta-glucoside of betanidin. Model/species: Cell-free biochemical systems and four human volunteers Tissue: Lipid emulsions, membranes, LDL; urine arm separate Exposure: Assay-specific submicromolar to micromolar concentrations; oral arm 300 mL beet juice with 120 mg betanin Route: In vitro addition; separate oral juice arm Duration: Kinetic assays; urine collected 2-4 h after ingestion Limits: Chemical activity does not establish clinical efficacy or a dietary iron interaction. Identity only; not a demonstrated human conversion rate. Primary reference: Betalains--a new class of dietary cationized antioxidants. (2001). https://pubmed.ncbi.nlm.nih.gov/11714300/ DOI: 10.1021/jf010456f
Complete structured claim and evidence
Added betanin inhibited iron-redox-driven lipid peroxidation in cell-free lipid preparations.
Betanin → Lipid peroxidation source_derived_draftungraded
Experimental context and source evidence
dose
Assay-specific submicromolar to micromolar concentrations; oral arm 300 mL beet juice with 120 mg betanin
duration
Kinetic assays; urine collected 2-4 h after ingestion
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Cell-free biochemical systems and four human volunteers
limitations
Chemical activity does not establish clinical efficacy or a dietary iron interaction.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Cell-free biochemical systems and four human volunteers
plain_language
Added betanin inhibited iron-redox-driven lipid peroxidation in cell-free lipid preparations.
primary_references
Betalains--a new class of dietary cationized antioxidants. (2001). https://pubmed.ncbi.nlm.nih.gov/11714300/ DOI: 10.1021/jf010456f
route
In vitro addition; separate oral juice arm
tissue
Lipid emulsions, membranes, LDL; urine arm separate
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 27–35
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Cell-free biochemical systems and four human volunteers · source_derived_draft · unverified_draft
## betalains-betanin-iron-oxidation Added betanin inhibited iron-redox-driven lipid peroxidation in cell-free lipid preparations. Model/species: Cell-free biochemical systems and four human volunteers Tissue: Lipid emulsions, membranes, LDL; urine arm separate Exposure: Assay-specific submicromolar to micromolar concentrations; oral arm 300 mL beet juice with 120 mg betanin Route: In vitro addition; separate oral juice arm Duration: Kinetic assays; urine collected 2-4 h after ingestion Limits: Chemical activity does not establish clinical efficacy or a dietary iron interaction. Primary reference: Betalains--a new class of dietary cationized antioxidants. (2001). https://pubmed.ncbi.nlm.nih.gov/11714300/ DOI: 10.1021/jf010456f
Complete structured claim and evidence
Betanidin inhibited cytochrome-c-driven linoleate peroxidation, with an assay IC50 of 0.8 micromolar.
Betanidin → Lipid peroxidation source_derived_draftungraded
Experimental context and source evidence
dose
Assay-specific submicromolar to micromolar concentrations; oral arm 300 mL beet juice with 120 mg betanin
duration
Kinetic assays; urine collected 2-4 h after ingestion
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Cell-free biochemical systems and four human volunteers
limitations
Chemical activity does not establish clinical efficacy or a dietary iron interaction.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Cell-free biochemical systems and four human volunteers
plain_language
Betanidin inhibited cytochrome-c-driven linoleate peroxidation, with an assay IC50 of 0.8 micromolar.
primary_references
Betalains--a new class of dietary cationized antioxidants. (2001). https://pubmed.ncbi.nlm.nih.gov/11714300/ DOI: 10.1021/jf010456f
route
In vitro addition; separate oral juice arm
tissue
Lipid emulsions, membranes, LDL; urine arm separate
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 37–45
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Cell-free biochemical systems and four human volunteers · source_derived_draft · unverified_draft
## betalains-betanidin-linoleate Betanidin inhibited cytochrome-c-driven linoleate peroxidation, with an assay IC50 of 0.8 micromolar. Model/species: Cell-free biochemical systems and four human volunteers Tissue: Lipid emulsions, membranes, LDL; urine arm separate Exposure: Assay-specific submicromolar to micromolar concentrations; oral arm 300 mL beet juice with 120 mg betanin Route: In vitro addition; separate oral juice arm Duration: Kinetic assays; urine collected 2-4 h after ingestion Limits: Chemical activity does not establish clinical efficacy or a dietary iron interaction. Primary reference: Betalains--a new class of dietary cationized antioxidants. (2001). https://pubmed.ncbi.nlm.nih.gov/11714300/ DOI: 10.1021/jf010456f
Complete structured claim and evidence
Adding betanin to human plasma produced pigment-enriched LDL after particle isolation.
Betanin → Low-density lipoprotein particles; preparation specified source_derived_draftungraded
Experimental context and source evidence
dose
25-100 micromolar pigment added to plasma; copper-triggered LDL oxidation
duration
Kinetic oxidation assay; incubation duration not specified in accessed abstract
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Human pooled plasma from 10 healthy donors; isolated LDL
limitations
Plasma spiking exceeds typical dietary parent-pigment exposure; vitamin synergy refers only to this assay.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Human pooled plasma from 10 healthy donors; isolated LDL
plain_language
Adding betanin to human plasma produced pigment-enriched LDL after particle isolation.
primary_references
Increased resistance to oxidation of betalain-enriched human low density lipoproteins. (2003). https://pubmed.ncbi.nlm.nih.gov/12868496/ DOI: 10.1080/1071576031000097490
route
Ex vivo spiking, not oral dosing
tissue
Plasma and LDL
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 47–55
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Human pooled plasma from 10 healthy donors; isolated LDL · source_derived_draft · unverified_draft
## betalains-betanin-ldl-binding Adding betanin to human plasma produced pigment-enriched LDL after particle isolation. Model/species: Human pooled plasma from 10 healthy donors; isolated LDL Tissue: Plasma and LDL Exposure: 25-100 micromolar pigment added to plasma; copper-triggered LDL oxidation Route: Ex vivo spiking, not oral dosing Duration: Kinetic oxidation assay; incubation duration not specified in accessed abstract Limits: Plasma spiking exceeds typical dietary parent-pigment exposure; vitamin synergy refers only to this assay. Primary reference: Increased resistance to oxidation of betalain-enriched human low density lipoproteins. (2003). https://pubmed.ncbi.nlm.nih.gov/12868496/ DOI: 10.1080/1071576031000097490
Complete structured claim and evidence
LDL enriched with betanin showed a longer lag before copper-induced oxidation.
Betanin → Copper-driven LDL oxidation source_derived_draftungraded
Experimental context and source evidence
dose
25-100 micromolar pigment added to plasma; copper-triggered LDL oxidation
duration
Kinetic oxidation assay; incubation duration not specified in accessed abstract
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Human pooled plasma from 10 healthy donors; isolated LDL
limitations
Plasma spiking exceeds typical dietary parent-pigment exposure; vitamin synergy refers only to this assay.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Human pooled plasma from 10 healthy donors; isolated LDL
plain_language
LDL enriched with betanin showed a longer lag before copper-induced oxidation.
primary_references
Increased resistance to oxidation of betalain-enriched human low density lipoproteins. (2003). https://pubmed.ncbi.nlm.nih.gov/12868496/ DOI: 10.1080/1071576031000097490
route
Ex vivo spiking, not oral dosing
tissue
Plasma and LDL
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 57–65
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Human pooled plasma from 10 healthy donors; isolated LDL · source_derived_draft · unverified_draft
## betalains-betanin-ldl-oxidation LDL enriched with betanin showed a longer lag before copper-induced oxidation. Model/species: Human pooled plasma from 10 healthy donors; isolated LDL Tissue: Plasma and LDL Exposure: 25-100 micromolar pigment added to plasma; copper-triggered LDL oxidation Route: Ex vivo spiking, not oral dosing Duration: Kinetic oxidation assay; incubation duration not specified in accessed abstract Limits: Plasma spiking exceeds typical dietary parent-pigment exposure; vitamin synergy refers only to this assay. Primary reference: Increased resistance to oxidation of betalain-enriched human low density lipoproteins. (2003). https://pubmed.ncbi.nlm.nih.gov/12868496/ DOI: 10.1080/1071576031000097490
Complete structured claim and evidence
Adding indicaxanthin to human plasma produced pigment-enriched LDL after particle isolation.
Indicaxanthin → Low-density lipoprotein particles; preparation specified source_derived_draftungraded
Experimental context and source evidence
dose
25-100 micromolar pigment added to plasma; copper-triggered LDL oxidation
duration
Kinetic oxidation assay; incubation duration not specified in accessed abstract
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Human pooled plasma from 10 healthy donors; isolated LDL
limitations
Plasma spiking exceeds typical dietary parent-pigment exposure; vitamin synergy refers only to this assay.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Human pooled plasma from 10 healthy donors; isolated LDL
plain_language
Adding indicaxanthin to human plasma produced pigment-enriched LDL after particle isolation.
primary_references
Increased resistance to oxidation of betalain-enriched human low density lipoproteins. (2003). https://pubmed.ncbi.nlm.nih.gov/12868496/ DOI: 10.1080/1071576031000097490
route
Ex vivo spiking, not oral dosing
tissue
Plasma and LDL
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 67–75
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Human pooled plasma from 10 healthy donors; isolated LDL · source_derived_draft · unverified_draft
## betalains-indicaxanthin-ldl-binding Adding indicaxanthin to human plasma produced pigment-enriched LDL after particle isolation. Model/species: Human pooled plasma from 10 healthy donors; isolated LDL Tissue: Plasma and LDL Exposure: 25-100 micromolar pigment added to plasma; copper-triggered LDL oxidation Route: Ex vivo spiking, not oral dosing Duration: Kinetic oxidation assay; incubation duration not specified in accessed abstract Limits: Plasma spiking exceeds typical dietary parent-pigment exposure; vitamin synergy refers only to this assay. Primary reference: Increased resistance to oxidation of betalain-enriched human low density lipoproteins. (2003). https://pubmed.ncbi.nlm.nih.gov/12868496/ DOI: 10.1080/1071576031000097490
Complete structured claim and evidence
LDL enriched with indicaxanthin showed a longer lag before copper-induced oxidation.
Indicaxanthin → Copper-driven LDL oxidation source_derived_draftungraded
Experimental context and source evidence
dose
25-100 micromolar pigment added to plasma; copper-triggered LDL oxidation
duration
Kinetic oxidation assay; incubation duration not specified in accessed abstract
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Human pooled plasma from 10 healthy donors; isolated LDL
limitations
Plasma spiking exceeds typical dietary parent-pigment exposure; vitamin synergy refers only to this assay.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Human pooled plasma from 10 healthy donors; isolated LDL
plain_language
LDL enriched with indicaxanthin showed a longer lag before copper-induced oxidation.
primary_references
Increased resistance to oxidation of betalain-enriched human low density lipoproteins. (2003). https://pubmed.ncbi.nlm.nih.gov/12868496/ DOI: 10.1080/1071576031000097490
route
Ex vivo spiking, not oral dosing
tissue
Plasma and LDL
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 77–85
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Human pooled plasma from 10 healthy donors; isolated LDL · source_derived_draft · unverified_draft
## betalains-indicaxanthin-ldl-oxidation LDL enriched with indicaxanthin showed a longer lag before copper-induced oxidation. Model/species: Human pooled plasma from 10 healthy donors; isolated LDL Tissue: Plasma and LDL Exposure: 25-100 micromolar pigment added to plasma; copper-triggered LDL oxidation Route: Ex vivo spiking, not oral dosing Duration: Kinetic oxidation assay; incubation duration not specified in accessed abstract Limits: Plasma spiking exceeds typical dietary parent-pigment exposure; vitamin synergy refers only to this assay. Primary reference: Increased resistance to oxidation of betalain-enriched human low density lipoproteins. (2003). https://pubmed.ncbi.nlm.nih.gov/12868496/ DOI: 10.1080/1071576031000097490
Complete structured claim and evidence
Indicaxanthin preserved LDL vitamin E early during oxidation; combined action protected LDL more than sequential separate action.
Indicaxanthin → LDL vitamin E consumption during oxidation source_derived_draftungraded
Experimental context and source evidence
dose
25-100 micromolar pigment added to plasma; copper-triggered LDL oxidation
duration
Kinetic oxidation assay; incubation duration not specified in accessed abstract
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Human pooled plasma from 10 healthy donors; isolated LDL
limitations
Plasma spiking exceeds typical dietary parent-pigment exposure; vitamin synergy refers only to this assay. The authors infer assay synergy; direct tocopheroxyl-radical recycling is not established.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Human pooled plasma from 10 healthy donors; isolated LDL
plain_language
Indicaxanthin preserved LDL vitamin E early during oxidation; combined action protected LDL more than sequential separate action.
primary_references
Increased resistance to oxidation of betalain-enriched human low density lipoproteins. (2003). https://pubmed.ncbi.nlm.nih.gov/12868496/ DOI: 10.1080/1071576031000097490
route
Ex vivo spiking, not oral dosing
tissue
Plasma and LDL
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 87–95
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Human pooled plasma from 10 healthy donors; isolated LDL · source_derived_draft · unverified_draft
## betalains-indicaxanthin-vitamin-e Indicaxanthin preserved LDL vitamin E early during oxidation; combined action protected LDL more than sequential separate action. Model/species: Human pooled plasma from 10 healthy donors; isolated LDL Tissue: Plasma and LDL Exposure: 25-100 micromolar pigment added to plasma; copper-triggered LDL oxidation Route: Ex vivo spiking, not oral dosing Duration: Kinetic oxidation assay; incubation duration not specified in accessed abstract Limits: Plasma spiking exceeds typical dietary parent-pigment exposure; vitamin synergy refers only to this assay. The authors infer assay synergy; direct tocopheroxyl-radical recycling is not established. Primary reference: Increased resistance to oxidation of betalain-enriched human low density lipoproteins. (2003). https://pubmed.ncbi.nlm.nih.gov/12868496/ DOI: 10.1080/1071576031000097490
Complete structured claim and evidence
Betanin did not produce the early vitamin E preservation observed with indicaxanthin in this LDL experiment.
Betanin → LDL vitamin E consumption during oxidation source_derived_draftungraded
Experimental context and source evidence
dose
25-100 micromolar pigment added to plasma; copper-triggered LDL oxidation
duration
Kinetic oxidation assay; incubation duration not specified in accessed abstract
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Human pooled plasma from 10 healthy donors; isolated LDL
limitations
Plasma spiking exceeds typical dietary parent-pigment exposure; vitamin synergy refers only to this assay.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Human pooled plasma from 10 healthy donors; isolated LDL
plain_language
Betanin did not produce the early vitamin E preservation observed with indicaxanthin in this LDL experiment.
primary_references
Increased resistance to oxidation of betalain-enriched human low density lipoproteins. (2003). https://pubmed.ncbi.nlm.nih.gov/12868496/ DOI: 10.1080/1071576031000097490
route
Ex vivo spiking, not oral dosing
tissue
Plasma and LDL
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 97–105
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Human pooled plasma from 10 healthy donors; isolated LDL · source_derived_draft · unverified_draft
## betalains-betanin-vitamin-e-null Betanin did not produce the early vitamin E preservation observed with indicaxanthin in this LDL experiment. Model/species: Human pooled plasma from 10 healthy donors; isolated LDL Tissue: Plasma and LDL Exposure: 25-100 micromolar pigment added to plasma; copper-triggered LDL oxidation Route: Ex vivo spiking, not oral dosing Duration: Kinetic oxidation assay; incubation duration not specified in accessed abstract Limits: Plasma spiking exceeds typical dietary parent-pigment exposure; vitamin synergy refers only to this assay. Primary reference: Increased resistance to oxidation of betalain-enriched human low density lipoproteins. (2003). https://pubmed.ncbi.nlm.nih.gov/12868496/ DOI: 10.1080/1071576031000097490
Complete structured claim and evidence
Betanin donated one electron to MPO compound I, producing compound II.
Betanin → Human myeloperoxidase compound I source_derived_draftungraded
Experimental context and source evidence
dose
Micromolar substrates; concentration-dependent chlorination assays
duration
Rapid kinetic measurements at 25 degrees C; pH 7.0 and pH 5.0
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Purified human myeloperoxidase; cell-free chemistry
limitations
MPO substrates can stimulate or inhibit chlorination depending on conditions; not a universal MPO inhibitor. Negative direction denotes consumption of compound I, not overall inhibition of MPO.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Purified human myeloperoxidase; cell-free chemistry
plain_language
Betanin donated one electron to MPO compound I, producing compound II.
primary_references
Mechanism of interaction of betanin and indicaxanthin with human myeloperoxidase and hypochlorous acid. (2005). https://pubmed.ncbi.nlm.nih.gov/15913556/ DOI: 10.1016/j.bbrc.2005.05.031
route
In vitro reagent addition
tissue
MPO redox cycle and HOCl solution
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 107–115
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Purified human myeloperoxidase; cell-free chemistry · source_derived_draft · unverified_draft
## betalains-betanin-mpo-i Betanin donated one electron to MPO compound I, producing compound II. Model/species: Purified human myeloperoxidase; cell-free chemistry Tissue: MPO redox cycle and HOCl solution Exposure: Micromolar substrates; concentration-dependent chlorination assays Route: In vitro reagent addition Duration: Rapid kinetic measurements at 25 degrees C; pH 7.0 and pH 5.0 Limits: MPO substrates can stimulate or inhibit chlorination depending on conditions; not a universal MPO inhibitor. Negative direction denotes consumption of compound I, not overall inhibition of MPO. Primary reference: Mechanism of interaction of betanin and indicaxanthin with human myeloperoxidase and hypochlorous acid. (2005). https://pubmed.ncbi.nlm.nih.gov/15913556/ DOI: 10.1016/j.bbrc.2005.05.031
Complete structured claim and evidence
Betanin reduced MPO compound II to the native ferric enzyme.
Betanin → Human myeloperoxidase compound II source_derived_draftungraded
Experimental context and source evidence
dose
Micromolar substrates; concentration-dependent chlorination assays
duration
Rapid kinetic measurements at 25 degrees C; pH 7.0 and pH 5.0
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Purified human myeloperoxidase; cell-free chemistry
limitations
MPO substrates can stimulate or inhibit chlorination depending on conditions; not a universal MPO inhibitor. Negative direction denotes consumption of compound II; this step can restore chlorination activity.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Purified human myeloperoxidase; cell-free chemistry
plain_language
Betanin reduced MPO compound II to the native ferric enzyme.
primary_references
Mechanism of interaction of betanin and indicaxanthin with human myeloperoxidase and hypochlorous acid. (2005). https://pubmed.ncbi.nlm.nih.gov/15913556/ DOI: 10.1016/j.bbrc.2005.05.031
route
In vitro reagent addition
tissue
MPO redox cycle and HOCl solution
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 117–125
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Purified human myeloperoxidase; cell-free chemistry · source_derived_draft · unverified_draft
## betalains-betanin-mpo-ii Betanin reduced MPO compound II to the native ferric enzyme. Model/species: Purified human myeloperoxidase; cell-free chemistry Tissue: MPO redox cycle and HOCl solution Exposure: Micromolar substrates; concentration-dependent chlorination assays Route: In vitro reagent addition Duration: Rapid kinetic measurements at 25 degrees C; pH 7.0 and pH 5.0 Limits: MPO substrates can stimulate or inhibit chlorination depending on conditions; not a universal MPO inhibitor. Negative direction denotes consumption of compound II; this step can restore chlorination activity. Primary reference: Mechanism of interaction of betanin and indicaxanthin with human myeloperoxidase and hypochlorous acid. (2005). https://pubmed.ncbi.nlm.nih.gov/15913556/ DOI: 10.1016/j.bbrc.2005.05.031
Complete structured claim and evidence
Betanin reacted directly with hypochlorous acid in the kinetic assay.
Betanin → Hypochlorous acid / HOCl source_derived_draftungraded
Experimental context and source evidence
dose
Micromolar substrates; concentration-dependent chlorination assays
duration
Rapid kinetic measurements at 25 degrees C; pH 7.0 and pH 5.0
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Purified human myeloperoxidase; cell-free chemistry
limitations
MPO substrates can stimulate or inhibit chlorination depending on conditions; not a universal MPO inhibitor.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Purified human myeloperoxidase; cell-free chemistry
plain_language
Betanin reacted directly with hypochlorous acid in the kinetic assay.
primary_references
Mechanism of interaction of betanin and indicaxanthin with human myeloperoxidase and hypochlorous acid. (2005). https://pubmed.ncbi.nlm.nih.gov/15913556/ DOI: 10.1016/j.bbrc.2005.05.031
route
In vitro reagent addition
tissue
MPO redox cycle and HOCl solution
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 127–135
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Purified human myeloperoxidase; cell-free chemistry · source_derived_draft · unverified_draft
## betalains-betanin-hocl Betanin reacted directly with hypochlorous acid in the kinetic assay. Model/species: Purified human myeloperoxidase; cell-free chemistry Tissue: MPO redox cycle and HOCl solution Exposure: Micromolar substrates; concentration-dependent chlorination assays Route: In vitro reagent addition Duration: Rapid kinetic measurements at 25 degrees C; pH 7.0 and pH 5.0 Limits: MPO substrates can stimulate or inhibit chlorination depending on conditions; not a universal MPO inhibitor. Primary reference: Mechanism of interaction of betanin and indicaxanthin with human myeloperoxidase and hypochlorous acid. (2005). https://pubmed.ncbi.nlm.nih.gov/15913556/ DOI: 10.1016/j.bbrc.2005.05.031
Complete structured claim and evidence
Betanin stimulated or inhibited MPO chlorination at neutral pH depending on concentration; at pH 5 only inhibition was observed.
Betanin → Human myeloperoxidase / MPO source_derived_draftungraded
Experimental context and source evidence
dose
Micromolar substrates; concentration-dependent chlorination assays
duration
Rapid kinetic measurements at 25 degrees C; pH 7.0 and pH 5.0
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Purified human myeloperoxidase; cell-free chemistry
limitations
MPO substrates can stimulate or inhibit chlorination depending on conditions; not a universal MPO inhibitor.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Purified human myeloperoxidase; cell-free chemistry
plain_language
Betanin stimulated or inhibited MPO chlorination at neutral pH depending on concentration; at pH 5 only inhibition was observed.
primary_references
Mechanism of interaction of betanin and indicaxanthin with human myeloperoxidase and hypochlorous acid. (2005). https://pubmed.ncbi.nlm.nih.gov/15913556/ DOI: 10.1016/j.bbrc.2005.05.031
route
In vitro reagent addition
tissue
MPO redox cycle and HOCl solution
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 137–145
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Purified human myeloperoxidase; cell-free chemistry · source_derived_draft · unverified_draft
## betalains-betanin-chlorination Betanin stimulated or inhibited MPO chlorination at neutral pH depending on concentration; at pH 5 only inhibition was observed. Model/species: Purified human myeloperoxidase; cell-free chemistry Tissue: MPO redox cycle and HOCl solution Exposure: Micromolar substrates; concentration-dependent chlorination assays Route: In vitro reagent addition Duration: Rapid kinetic measurements at 25 degrees C; pH 7.0 and pH 5.0 Limits: MPO substrates can stimulate or inhibit chlorination depending on conditions; not a universal MPO inhibitor. Primary reference: Mechanism of interaction of betanin and indicaxanthin with human myeloperoxidase and hypochlorous acid. (2005). https://pubmed.ncbi.nlm.nih.gov/15913556/ DOI: 10.1016/j.bbrc.2005.05.031
Complete structured claim and evidence
Indicaxanthin donated one electron to MPO compound I, producing compound II.
Indicaxanthin → Human myeloperoxidase compound I source_derived_draftungraded
Experimental context and source evidence
dose
Micromolar substrates; concentration-dependent chlorination assays
duration
Rapid kinetic measurements at 25 degrees C; pH 7.0 and pH 5.0
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Purified human myeloperoxidase; cell-free chemistry
limitations
MPO substrates can stimulate or inhibit chlorination depending on conditions; not a universal MPO inhibitor. Negative direction denotes consumption of compound I, not overall inhibition of MPO.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Purified human myeloperoxidase; cell-free chemistry
plain_language
Indicaxanthin donated one electron to MPO compound I, producing compound II.
primary_references
Mechanism of interaction of betanin and indicaxanthin with human myeloperoxidase and hypochlorous acid. (2005). https://pubmed.ncbi.nlm.nih.gov/15913556/ DOI: 10.1016/j.bbrc.2005.05.031
route
In vitro reagent addition
tissue
MPO redox cycle and HOCl solution
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 147–155
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Purified human myeloperoxidase; cell-free chemistry · source_derived_draft · unverified_draft
## betalains-indicaxanthin-mpo-i Indicaxanthin donated one electron to MPO compound I, producing compound II. Model/species: Purified human myeloperoxidase; cell-free chemistry Tissue: MPO redox cycle and HOCl solution Exposure: Micromolar substrates; concentration-dependent chlorination assays Route: In vitro reagent addition Duration: Rapid kinetic measurements at 25 degrees C; pH 7.0 and pH 5.0 Limits: MPO substrates can stimulate or inhibit chlorination depending on conditions; not a universal MPO inhibitor. Negative direction denotes consumption of compound I, not overall inhibition of MPO. Primary reference: Mechanism of interaction of betanin and indicaxanthin with human myeloperoxidase and hypochlorous acid. (2005). https://pubmed.ncbi.nlm.nih.gov/15913556/ DOI: 10.1016/j.bbrc.2005.05.031
Complete structured claim and evidence
Indicaxanthin reduced MPO compound II to the native ferric enzyme.
Indicaxanthin → Human myeloperoxidase compound II source_derived_draftungraded
Experimental context and source evidence
dose
Micromolar substrates; concentration-dependent chlorination assays
duration
Rapid kinetic measurements at 25 degrees C; pH 7.0 and pH 5.0
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Purified human myeloperoxidase; cell-free chemistry
limitations
MPO substrates can stimulate or inhibit chlorination depending on conditions; not a universal MPO inhibitor. Negative direction denotes consumption of compound II; this step can restore chlorination activity.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Purified human myeloperoxidase; cell-free chemistry
plain_language
Indicaxanthin reduced MPO compound II to the native ferric enzyme.
primary_references
Mechanism of interaction of betanin and indicaxanthin with human myeloperoxidase and hypochlorous acid. (2005). https://pubmed.ncbi.nlm.nih.gov/15913556/ DOI: 10.1016/j.bbrc.2005.05.031
route
In vitro reagent addition
tissue
MPO redox cycle and HOCl solution
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 157–165
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Purified human myeloperoxidase; cell-free chemistry · source_derived_draft · unverified_draft
## betalains-indicaxanthin-mpo-ii Indicaxanthin reduced MPO compound II to the native ferric enzyme. Model/species: Purified human myeloperoxidase; cell-free chemistry Tissue: MPO redox cycle and HOCl solution Exposure: Micromolar substrates; concentration-dependent chlorination assays Route: In vitro reagent addition Duration: Rapid kinetic measurements at 25 degrees C; pH 7.0 and pH 5.0 Limits: MPO substrates can stimulate or inhibit chlorination depending on conditions; not a universal MPO inhibitor. Negative direction denotes consumption of compound II; this step can restore chlorination activity. Primary reference: Mechanism of interaction of betanin and indicaxanthin with human myeloperoxidase and hypochlorous acid. (2005). https://pubmed.ncbi.nlm.nih.gov/15913556/ DOI: 10.1016/j.bbrc.2005.05.031
Complete structured claim and evidence
Indicaxanthin reacted directly with hypochlorous acid in the kinetic assay.
Indicaxanthin → Hypochlorous acid / HOCl source_derived_draftungraded
Experimental context and source evidence
dose
Micromolar substrates; concentration-dependent chlorination assays
duration
Rapid kinetic measurements at 25 degrees C; pH 7.0 and pH 5.0
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Purified human myeloperoxidase; cell-free chemistry
limitations
MPO substrates can stimulate or inhibit chlorination depending on conditions; not a universal MPO inhibitor.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Purified human myeloperoxidase; cell-free chemistry
plain_language
Indicaxanthin reacted directly with hypochlorous acid in the kinetic assay.
primary_references
Mechanism of interaction of betanin and indicaxanthin with human myeloperoxidase and hypochlorous acid. (2005). https://pubmed.ncbi.nlm.nih.gov/15913556/ DOI: 10.1016/j.bbrc.2005.05.031
route
In vitro reagent addition
tissue
MPO redox cycle and HOCl solution
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 167–175
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Purified human myeloperoxidase; cell-free chemistry · source_derived_draft · unverified_draft
## betalains-indicaxanthin-hocl Indicaxanthin reacted directly with hypochlorous acid in the kinetic assay. Model/species: Purified human myeloperoxidase; cell-free chemistry Tissue: MPO redox cycle and HOCl solution Exposure: Micromolar substrates; concentration-dependent chlorination assays Route: In vitro reagent addition Duration: Rapid kinetic measurements at 25 degrees C; pH 7.0 and pH 5.0 Limits: MPO substrates can stimulate or inhibit chlorination depending on conditions; not a universal MPO inhibitor. Primary reference: Mechanism of interaction of betanin and indicaxanthin with human myeloperoxidase and hypochlorous acid. (2005). https://pubmed.ncbi.nlm.nih.gov/15913556/ DOI: 10.1016/j.bbrc.2005.05.031
Complete structured claim and evidence
Indicaxanthin stimulated or inhibited MPO chlorination at neutral pH depending on concentration; at pH 5 only inhibition was observed.
Indicaxanthin → Human myeloperoxidase / MPO source_derived_draftungraded
Experimental context and source evidence
dose
Micromolar substrates; concentration-dependent chlorination assays
duration
Rapid kinetic measurements at 25 degrees C; pH 7.0 and pH 5.0
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Purified human myeloperoxidase; cell-free chemistry
limitations
MPO substrates can stimulate or inhibit chlorination depending on conditions; not a universal MPO inhibitor.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Purified human myeloperoxidase; cell-free chemistry
plain_language
Indicaxanthin stimulated or inhibited MPO chlorination at neutral pH depending on concentration; at pH 5 only inhibition was observed.
primary_references
Mechanism of interaction of betanin and indicaxanthin with human myeloperoxidase and hypochlorous acid. (2005). https://pubmed.ncbi.nlm.nih.gov/15913556/ DOI: 10.1016/j.bbrc.2005.05.031
route
In vitro reagent addition
tissue
MPO redox cycle and HOCl solution
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 177–185
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Purified human myeloperoxidase; cell-free chemistry · source_derived_draft · unverified_draft
## betalains-indicaxanthin-chlorination Indicaxanthin stimulated or inhibited MPO chlorination at neutral pH depending on concentration; at pH 5 only inhibition was observed. Model/species: Purified human myeloperoxidase; cell-free chemistry Tissue: MPO redox cycle and HOCl solution Exposure: Micromolar substrates; concentration-dependent chlorination assays Route: In vitro reagent addition Duration: Rapid kinetic measurements at 25 degrees C; pH 7.0 and pH 5.0 Limits: MPO substrates can stimulate or inhibit chlorination depending on conditions; not a universal MPO inhibitor. Primary reference: Mechanism of interaction of betanin and indicaxanthin with human myeloperoxidase and hypochlorous acid. (2005). https://pubmed.ncbi.nlm.nih.gov/15913556/ DOI: 10.1016/j.bbrc.2005.05.031
Complete structured claim and evidence
Betanin reduced lipid hydroperoxide formation during MPO/nitrite-mediated oxidation of human LDL.
Betanin → Lipid peroxidation source_derived_draftungraded
Experimental context and source evidence
dose
Experimental betanin addition; concentration not specified in accessed abstract
duration
Oxidation time courses; duration not specified in accessed abstract
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Isolated human LDL and MPO/nitrite biochemical system
limitations
Oxidation products were not chemically identified; clinical LDL lowering was not tested.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Isolated human LDL and MPO/nitrite biochemical system
plain_language
Betanin reduced lipid hydroperoxide formation during MPO/nitrite-mediated oxidation of human LDL.
primary_references
Betanin inhibits the myeloperoxidase/nitrite-induced oxidation of human low-density lipoproteins. (2007). https://pubmed.ncbi.nlm.nih.gov/17364963/ DOI: 10.1080/10715760601038783
route
In vitro addition
tissue
LDL lipid compartment
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 187–195
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Isolated human LDL and MPO/nitrite biochemical system · source_derived_draft · unverified_draft
## betalains-mpo-ldl Betanin reduced lipid hydroperoxide formation during MPO/nitrite-mediated oxidation of human LDL. Model/species: Isolated human LDL and MPO/nitrite biochemical system Tissue: LDL lipid compartment Exposure: Experimental betanin addition; concentration not specified in accessed abstract Route: In vitro addition Duration: Oxidation time courses; duration not specified in accessed abstract Limits: Oxidation products were not chemically identified; clinical LDL lowering was not tested. Primary reference: Betanin inhibits the myeloperoxidase/nitrite-induced oxidation of human low-density lipoproteins. (2007). https://pubmed.ncbi.nlm.nih.gov/17364963/ DOI: 10.1080/10715760601038783
Complete structured claim and evidence
Unidentified products generated by MPO/nitrite oxidation of betanin also inhibited LDL oxidation in the assay.
Unidentified betanin oxidation products in the MPO/nitrite assay → Lipid peroxidation source_derived_draftungraded
Experimental context and source evidence
dose
Experimental betanin addition; concentration not specified in accessed abstract
duration
Oxidation time courses; duration not specified in accessed abstract
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Isolated human LDL and MPO/nitrite biochemical system
limitations
Oxidation products were not chemically identified; clinical LDL lowering was not tested.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Isolated human LDL and MPO/nitrite biochemical system
plain_language
Unidentified products generated by MPO/nitrite oxidation of betanin also inhibited LDL oxidation in the assay.
primary_references
Betanin inhibits the myeloperoxidase/nitrite-induced oxidation of human low-density lipoproteins. (2007). https://pubmed.ncbi.nlm.nih.gov/17364963/ DOI: 10.1080/10715760601038783
route
In vitro addition
tissue
LDL lipid compartment
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 197–205
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Isolated human LDL and MPO/nitrite biochemical system · source_derived_draft · unverified_draft
## betalains-oxidation-products Unidentified products generated by MPO/nitrite oxidation of betanin also inhibited LDL oxidation in the assay. Model/species: Isolated human LDL and MPO/nitrite biochemical system Tissue: LDL lipid compartment Exposure: Experimental betanin addition; concentration not specified in accessed abstract Route: In vitro addition Duration: Oxidation time courses; duration not specified in accessed abstract Limits: Oxidation products were not chemically identified; clinical LDL lowering was not tested. Primary reference: Betanin inhibits the myeloperoxidase/nitrite-induced oxidation of human low-density lipoproteins. (2007). https://pubmed.ncbi.nlm.nih.gov/17364963/ DOI: 10.1080/10715760601038783
Complete structured claim and evidence
Betanin promoted nuclear redistribution of Nrf2 in both THLE-2 and HepG2 cells.
Betanin → Human Nrf2 / NFE2L2 source_derived_draftungraded
Experimental context and source evidence
dose
Betanin 2, 10 and 20 micromolar
duration
Not specified in accessed primary abstract
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Human THLE-2 non-tumour liver and HepG2 hepatoma cell lines
limitations
Responses differed by cell line. Nuclear translocation is not proof of universal transcriptional activation; kinase association does not prove direct binding.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Human THLE-2 non-tumour liver and HepG2 hepatoma cell lines
plain_language
Betanin promoted nuclear redistribution of Nrf2 in both THLE-2 and HepG2 cells.
primary_references
Betanin, a beetroot component, induces nuclear factor erythroid-2-related factor 2-mediated expression of detoxifying/antioxidant enzymes in human liver cell lines. (2013). https://pubmed.ncbi.nlm.nih.gov/23769299/ DOI: 10.1017/S0007114513001645
route
In vitro incubation
tissue
Liver-derived cells; cytosol and nucleus
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 207–215
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Human THLE-2 non-tumour liver and HepG2 hepatoma cell lines · source_derived_draft · unverified_draft
## betalains-nrf2-translocation Betanin promoted nuclear redistribution of Nrf2 in both THLE-2 and HepG2 cells. Model/species: Human THLE-2 non-tumour liver and HepG2 hepatoma cell lines Tissue: Liver-derived cells; cytosol and nucleus Exposure: Betanin 2, 10 and 20 micromolar Route: In vitro incubation Duration: Not specified in accessed primary abstract Limits: Responses differed by cell line. Nuclear translocation is not proof of universal transcriptional activation; kinase association does not prove direct binding. Primary reference: Betanin, a beetroot component, induces nuclear factor erythroid-2-related factor 2-mediated expression of detoxifying/antioxidant enzymes in human liver cell lines. (2013). https://pubmed.ncbi.nlm.nih.gov/23769299/ DOI: 10.1017/S0007114513001645
Complete structured claim and evidence
Betanin increased Nrf2 binding to antioxidant response elements in THLE-2 cells; this response was absent in HepG2 cells.
Betanin → Human Nrf2 / NFE2L2 source_derived_draftungraded
Experimental context and source evidence
dose
Betanin 2, 10 and 20 micromolar
duration
Not specified in accessed primary abstract
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Human THLE-2 non-tumour liver and HepG2 hepatoma cell lines
limitations
Responses differed by cell line. Nuclear translocation is not proof of universal transcriptional activation; kinase association does not prove direct binding. Same-study cell-context difference, not a scientific contradiction.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Human THLE-2 non-tumour liver and HepG2 hepatoma cell lines
plain_language
Betanin increased Nrf2 binding to antioxidant response elements in THLE-2 cells; this response was absent in HepG2 cells.
primary_references
Betanin, a beetroot component, induces nuclear factor erythroid-2-related factor 2-mediated expression of detoxifying/antioxidant enzymes in human liver cell lines. (2013). https://pubmed.ncbi.nlm.nih.gov/23769299/ DOI: 10.1017/S0007114513001645
route
In vitro incubation
tissue
Liver-derived cells; cytosol and nucleus
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 217–225
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Human THLE-2 non-tumour liver and HepG2 hepatoma cell lines · source_derived_draft · unverified_draft
## betalains-nrf2-are Betanin increased Nrf2 binding to antioxidant response elements in THLE-2 cells; this response was absent in HepG2 cells. Model/species: Human THLE-2 non-tumour liver and HepG2 hepatoma cell lines Tissue: Liver-derived cells; cytosol and nucleus Exposure: Betanin 2, 10 and 20 micromolar Route: In vitro incubation Duration: Not specified in accessed primary abstract Limits: Responses differed by cell line. Nuclear translocation is not proof of universal transcriptional activation; kinase association does not prove direct binding. Same-study cell-context difference, not a scientific contradiction. Primary reference: Betanin, a beetroot component, induces nuclear factor erythroid-2-related factor 2-mediated expression of detoxifying/antioxidant enzymes in human liver cell lines. (2013). https://pubmed.ncbi.nlm.nih.gov/23769299/ DOI: 10.1017/S0007114513001645
Complete structured claim and evidence
Betanin increased NQO1 transcript and protein abundance in THLE-2 cells.
Betanin → Human NAD(P)H quinone dehydrogenase 1 / NQO1 source_derived_draftungraded
Experimental context and source evidence
dose
Betanin 2, 10 and 20 micromolar
duration
Not specified in accessed primary abstract
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Human THLE-2 non-tumour liver and HepG2 hepatoma cell lines
limitations
Responses differed by cell line. Nuclear translocation is not proof of universal transcriptional activation; kinase association does not prove direct binding.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Human THLE-2 non-tumour liver and HepG2 hepatoma cell lines
plain_language
Betanin increased NQO1 transcript and protein abundance in THLE-2 cells.
primary_references
Betanin, a beetroot component, induces nuclear factor erythroid-2-related factor 2-mediated expression of detoxifying/antioxidant enzymes in human liver cell lines. (2013). https://pubmed.ncbi.nlm.nih.gov/23769299/ DOI: 10.1017/S0007114513001645
route
In vitro incubation
tissue
Liver-derived cells; cytosol and nucleus
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 227–235
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Human THLE-2 non-tumour liver and HepG2 hepatoma cell lines · source_derived_draft · unverified_draft
## betalains-nqo1-expression Betanin increased NQO1 transcript and protein abundance in THLE-2 cells. Model/species: Human THLE-2 non-tumour liver and HepG2 hepatoma cell lines Tissue: Liver-derived cells; cytosol and nucleus Exposure: Betanin 2, 10 and 20 micromolar Route: In vitro incubation Duration: Not specified in accessed primary abstract Limits: Responses differed by cell line. Nuclear translocation is not proof of universal transcriptional activation; kinase association does not prove direct binding. Primary reference: Betanin, a beetroot component, induces nuclear factor erythroid-2-related factor 2-mediated expression of detoxifying/antioxidant enzymes in human liver cell lines. (2013). https://pubmed.ncbi.nlm.nih.gov/23769299/ DOI: 10.1017/S0007114513001645
Complete structured claim and evidence
Betanin increased GSTP transcript and protein abundance in THLE-2 cells.
Betanin → Human glutathione S-transferase P1 / GSTP1 source_derived_draftungraded
Experimental context and source evidence
dose
Betanin 2, 10 and 20 micromolar
duration
Not specified in accessed primary abstract
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Human THLE-2 non-tumour liver and HepG2 hepatoma cell lines
limitations
Responses differed by cell line. Nuclear translocation is not proof of universal transcriptional activation; kinase association does not prove direct binding. Glutathione is the shared GST substrate; this study does not show betanin raises glutathione synthesis or reverses deficiency.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Human THLE-2 non-tumour liver and HepG2 hepatoma cell lines
plain_language
Betanin increased GSTP transcript and protein abundance in THLE-2 cells.
primary_references
Betanin, a beetroot component, induces nuclear factor erythroid-2-related factor 2-mediated expression of detoxifying/antioxidant enzymes in human liver cell lines. (2013). https://pubmed.ncbi.nlm.nih.gov/23769299/ DOI: 10.1017/S0007114513001645
route
In vitro incubation
tissue
Liver-derived cells; cytosol and nucleus
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 237–245
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Human THLE-2 non-tumour liver and HepG2 hepatoma cell lines · source_derived_draft · unverified_draft
## betalains-gstp-expression Betanin increased GSTP transcript and protein abundance in THLE-2 cells. Model/species: Human THLE-2 non-tumour liver and HepG2 hepatoma cell lines Tissue: Liver-derived cells; cytosol and nucleus Exposure: Betanin 2, 10 and 20 micromolar Route: In vitro incubation Duration: Not specified in accessed primary abstract Limits: Responses differed by cell line. Nuclear translocation is not proof of universal transcriptional activation; kinase association does not prove direct binding. Glutathione is the shared GST substrate; this study does not show betanin raises glutathione synthesis or reverses deficiency. Primary reference: Betanin, a beetroot component, induces nuclear factor erythroid-2-related factor 2-mediated expression of detoxifying/antioxidant enzymes in human liver cell lines. (2013). https://pubmed.ncbi.nlm.nih.gov/23769299/ DOI: 10.1017/S0007114513001645
Complete structured claim and evidence
Betanin did not alter GSTP1 methylation in HepG2 cells.
Betanin → Human glutathione S-transferase P1 / GSTP1 source_derived_draftungraded
Experimental context and source evidence
dose
Betanin 2, 10 and 20 micromolar
duration
Not specified in accessed primary abstract
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Human THLE-2 non-tumour liver and HepG2 hepatoma cell lines
limitations
Responses differed by cell line. Nuclear translocation is not proof of universal transcriptional activation; kinase association does not prove direct binding.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Human THLE-2 non-tumour liver and HepG2 hepatoma cell lines
plain_language
Betanin did not alter GSTP1 methylation in HepG2 cells.
primary_references
Betanin, a beetroot component, induces nuclear factor erythroid-2-related factor 2-mediated expression of detoxifying/antioxidant enzymes in human liver cell lines. (2013). https://pubmed.ncbi.nlm.nih.gov/23769299/ DOI: 10.1017/S0007114513001645
route
In vitro incubation
tissue
Liver-derived cells; cytosol and nucleus
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 247–255
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Human THLE-2 non-tumour liver and HepG2 hepatoma cell lines · source_derived_draft · unverified_draft
## betalains-hepg2-methylation-null Betanin did not alter GSTP1 methylation in HepG2 cells. Model/species: Human THLE-2 non-tumour liver and HepG2 hepatoma cell lines Tissue: Liver-derived cells; cytosol and nucleus Exposure: Betanin 2, 10 and 20 micromolar Route: In vitro incubation Duration: Not specified in accessed primary abstract Limits: Responses differed by cell line. Nuclear translocation is not proof of universal transcriptional activation; kinase association does not prove direct binding. Primary reference: Betanin, a beetroot component, induces nuclear factor erythroid-2-related factor 2-mediated expression of detoxifying/antioxidant enzymes in human liver cell lines. (2013). https://pubmed.ncbi.nlm.nih.gov/23769299/ DOI: 10.1017/S0007114513001645
Complete structured claim and evidence
Indicaxanthin co-treatment prevented IL-1beta-induced NOX1 activation in Caco-2 monolayers.
Indicaxanthin → Human NADPH oxidase 1 / NOX1 source_derived_draftungraded
Experimental context and source evidence
dose
Indicaxanthin 5-25 micromolar with IL-1beta 25 ng/mL
duration
24 h for mediator release and permeability; earlier signaling assays
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Differentiated human Caco-2 intestinal epithelial monolayers
limitations
No clinical IBD treatment effect or molecular binding site was established. Total thiols must not be relabeled as a specific glutathione measurement.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Differentiated human Caco-2 intestinal epithelial monolayers
plain_language
Indicaxanthin co-treatment prevented IL-1beta-induced NOX1 activation in Caco-2 monolayers.
primary_references
Indicaxanthin inhibits NADPH oxidase (NOX)-1 activation and NF-κB-dependent release of inflammatory mediators and prevents the increase of epithelial permeability in IL-1β-exposed Caco-2 cells. (2014). https://pubmed.ncbi.nlm.nih.gov/23931157/ DOI: 10.1017/S0007114513002663
route
In vitro co-incubation
tissue
Intestinal epithelial model
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 257–265
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Differentiated human Caco-2 intestinal epithelial monolayers · source_derived_draft · unverified_draft
## betalains-caco2-nox1 Indicaxanthin co-treatment prevented IL-1beta-induced NOX1 activation in Caco-2 monolayers. Model/species: Differentiated human Caco-2 intestinal epithelial monolayers Tissue: Intestinal epithelial model Exposure: Indicaxanthin 5-25 micromolar with IL-1beta 25 ng/mL Route: In vitro co-incubation Duration: 24 h for mediator release and permeability; earlier signaling assays Limits: No clinical IBD treatment effect or molecular binding site was established. Total thiols must not be relabeled as a specific glutathione measurement. Primary reference: Indicaxanthin inhibits NADPH oxidase (NOX)-1 activation and NF-κB-dependent release of inflammatory mediators and prevents the increase of epithelial permeability in IL-1β-exposed Caco-2 cells. (2014). https://pubmed.ncbi.nlm.nih.gov/23931157/ DOI: 10.1017/S0007114513002663
Complete structured claim and evidence
Indicaxanthin co-treatment suppressed IL-1beta-induced NF-kappaB activation.
Indicaxanthin → NF-kappaB activation in human Caco-2 cells source_derived_draftungraded
Experimental context and source evidence
dose
Indicaxanthin 5-25 micromolar with IL-1beta 25 ng/mL
duration
24 h for mediator release and permeability; earlier signaling assays
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Differentiated human Caco-2 intestinal epithelial monolayers
limitations
No clinical IBD treatment effect or molecular binding site was established. Total thiols must not be relabeled as a specific glutathione measurement.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Differentiated human Caco-2 intestinal epithelial monolayers
plain_language
Indicaxanthin co-treatment suppressed IL-1beta-induced NF-kappaB activation.
primary_references
Indicaxanthin inhibits NADPH oxidase (NOX)-1 activation and NF-κB-dependent release of inflammatory mediators and prevents the increase of epithelial permeability in IL-1β-exposed Caco-2 cells. (2014). https://pubmed.ncbi.nlm.nih.gov/23931157/ DOI: 10.1017/S0007114513002663
route
In vitro co-incubation
tissue
Intestinal epithelial model
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 267–275
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Differentiated human Caco-2 intestinal epithelial monolayers · source_derived_draft · unverified_draft
## betalains-caco2-nfkb Indicaxanthin co-treatment suppressed IL-1beta-induced NF-kappaB activation. Model/species: Differentiated human Caco-2 intestinal epithelial monolayers Tissue: Intestinal epithelial model Exposure: Indicaxanthin 5-25 micromolar with IL-1beta 25 ng/mL Route: In vitro co-incubation Duration: 24 h for mediator release and permeability; earlier signaling assays Limits: No clinical IBD treatment effect or molecular binding site was established. Total thiols must not be relabeled as a specific glutathione measurement. Primary reference: Indicaxanthin inhibits NADPH oxidase (NOX)-1 activation and NF-κB-dependent release of inflammatory mediators and prevents the increase of epithelial permeability in IL-1β-exposed Caco-2 cells. (2014). https://pubmed.ncbi.nlm.nih.gov/23931157/ DOI: 10.1017/S0007114513002663
Complete structured claim and evidence
Indicaxanthin reduced induced COX-2 expression in IL-1beta-exposed Caco-2 cells.
Indicaxanthin → Cyclooxygenase-2 (PTGS2) source_derived_draftungraded
Experimental context and source evidence
dose
Indicaxanthin 5-25 micromolar with IL-1beta 25 ng/mL
duration
24 h for mediator release and permeability; earlier signaling assays
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Differentiated human Caco-2 intestinal epithelial monolayers
limitations
No clinical IBD treatment effect or molecular binding site was established. Total thiols must not be relabeled as a specific glutathione measurement.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Differentiated human Caco-2 intestinal epithelial monolayers
plain_language
Indicaxanthin reduced induced COX-2 expression in IL-1beta-exposed Caco-2 cells.
primary_references
Indicaxanthin inhibits NADPH oxidase (NOX)-1 activation and NF-κB-dependent release of inflammatory mediators and prevents the increase of epithelial permeability in IL-1β-exposed Caco-2 cells. (2014). https://pubmed.ncbi.nlm.nih.gov/23931157/ DOI: 10.1017/S0007114513002663
route
In vitro co-incubation
tissue
Intestinal epithelial model
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 277–285
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Differentiated human Caco-2 intestinal epithelial monolayers · source_derived_draft · unverified_draft
## betalains-caco2-cox2 Indicaxanthin reduced induced COX-2 expression in IL-1beta-exposed Caco-2 cells. Model/species: Differentiated human Caco-2 intestinal epithelial monolayers Tissue: Intestinal epithelial model Exposure: Indicaxanthin 5-25 micromolar with IL-1beta 25 ng/mL Route: In vitro co-incubation Duration: 24 h for mediator release and permeability; earlier signaling assays Limits: No clinical IBD treatment effect or molecular binding site was established. Total thiols must not be relabeled as a specific glutathione measurement. Primary reference: Indicaxanthin inhibits NADPH oxidase (NOX)-1 activation and NF-κB-dependent release of inflammatory mediators and prevents the increase of epithelial permeability in IL-1β-exposed Caco-2 cells. (2014). https://pubmed.ncbi.nlm.nih.gov/23931157/ DOI: 10.1017/S0007114513002663
Complete structured claim and evidence
Indicaxanthin reduced induced nitric oxide synthase expression in IL-1beta-exposed Caco-2 cells.
Indicaxanthin → Human inducible nitric oxide synthase / iNOS / NOS2 source_derived_draftungraded
Experimental context and source evidence
dose
Indicaxanthin 5-25 micromolar with IL-1beta 25 ng/mL
duration
24 h for mediator release and permeability; earlier signaling assays
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Differentiated human Caco-2 intestinal epithelial monolayers
limitations
No clinical IBD treatment effect or molecular binding site was established. Total thiols must not be relabeled as a specific glutathione measurement.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Differentiated human Caco-2 intestinal epithelial monolayers
plain_language
Indicaxanthin reduced induced nitric oxide synthase expression in IL-1beta-exposed Caco-2 cells.
primary_references
Indicaxanthin inhibits NADPH oxidase (NOX)-1 activation and NF-κB-dependent release of inflammatory mediators and prevents the increase of epithelial permeability in IL-1β-exposed Caco-2 cells. (2014). https://pubmed.ncbi.nlm.nih.gov/23931157/ DOI: 10.1017/S0007114513002663
route
In vitro co-incubation
tissue
Intestinal epithelial model
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 287–295
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Differentiated human Caco-2 intestinal epithelial monolayers · source_derived_draft · unverified_draft
## betalains-caco2-nos2 Indicaxanthin reduced induced nitric oxide synthase expression in IL-1beta-exposed Caco-2 cells. Model/species: Differentiated human Caco-2 intestinal epithelial monolayers Tissue: Intestinal epithelial model Exposure: Indicaxanthin 5-25 micromolar with IL-1beta 25 ng/mL Route: In vitro co-incubation Duration: 24 h for mediator release and permeability; earlier signaling assays Limits: No clinical IBD treatment effect or molecular binding site was established. Total thiols must not be relabeled as a specific glutathione measurement. Primary reference: Indicaxanthin inhibits NADPH oxidase (NOX)-1 activation and NF-κB-dependent release of inflammatory mediators and prevents the increase of epithelial permeability in IL-1β-exposed Caco-2 cells. (2014). https://pubmed.ncbi.nlm.nih.gov/23931157/ DOI: 10.1017/S0007114513002663
Complete structured claim and evidence
Indicaxanthin prevented the IL-1beta-associated rise in cellular oxidant signal.
Indicaxanthin → Reactive oxygen species generation in human Caco-2 cells source_derived_draftungraded
Experimental context and source evidence
dose
Indicaxanthin 5-25 micromolar with IL-1beta 25 ng/mL
duration
24 h for mediator release and permeability; earlier signaling assays
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Differentiated human Caco-2 intestinal epithelial monolayers
limitations
No clinical IBD treatment effect or molecular binding site was established. Total thiols must not be relabeled as a specific glutathione measurement.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Differentiated human Caco-2 intestinal epithelial monolayers
plain_language
Indicaxanthin prevented the IL-1beta-associated rise in cellular oxidant signal.
primary_references
Indicaxanthin inhibits NADPH oxidase (NOX)-1 activation and NF-κB-dependent release of inflammatory mediators and prevents the increase of epithelial permeability in IL-1β-exposed Caco-2 cells. (2014). https://pubmed.ncbi.nlm.nih.gov/23931157/ DOI: 10.1017/S0007114513002663
route
In vitro co-incubation
tissue
Intestinal epithelial model
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 297–305
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Differentiated human Caco-2 intestinal epithelial monolayers · source_derived_draft · unverified_draft
## betalains-caco2-ros Indicaxanthin prevented the IL-1beta-associated rise in cellular oxidant signal. Model/species: Differentiated human Caco-2 intestinal epithelial monolayers Tissue: Intestinal epithelial model Exposure: Indicaxanthin 5-25 micromolar with IL-1beta 25 ng/mL Route: In vitro co-incubation Duration: 24 h for mediator release and permeability; earlier signaling assays Limits: No clinical IBD treatment effect or molecular binding site was established. Total thiols must not be relabeled as a specific glutathione measurement. Primary reference: Indicaxanthin inhibits NADPH oxidase (NOX)-1 activation and NF-κB-dependent release of inflammatory mediators and prevents the increase of epithelial permeability in IL-1β-exposed Caco-2 cells. (2014). https://pubmed.ncbi.nlm.nih.gov/23931157/ DOI: 10.1017/S0007114513002663
Complete structured claim and evidence
Indicaxanthin prevented IL-1beta-associated loss of total cellular thiols.
Indicaxanthin → Total thiol content in human Caco-2 cells source_derived_draftungraded
Experimental context and source evidence
dose
Indicaxanthin 5-25 micromolar with IL-1beta 25 ng/mL
duration
24 h for mediator release and permeability; earlier signaling assays
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Differentiated human Caco-2 intestinal epithelial monolayers
limitations
No clinical IBD treatment effect or molecular binding site was established. Total thiols must not be relabeled as a specific glutathione measurement.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Differentiated human Caco-2 intestinal epithelial monolayers
plain_language
Indicaxanthin prevented IL-1beta-associated loss of total cellular thiols.
primary_references
Indicaxanthin inhibits NADPH oxidase (NOX)-1 activation and NF-κB-dependent release of inflammatory mediators and prevents the increase of epithelial permeability in IL-1β-exposed Caco-2 cells. (2014). https://pubmed.ncbi.nlm.nih.gov/23931157/ DOI: 10.1017/S0007114513002663
route
In vitro co-incubation
tissue
Intestinal epithelial model
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 307–315
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Differentiated human Caco-2 intestinal epithelial monolayers · source_derived_draft · unverified_draft
## betalains-caco2-thiols Indicaxanthin prevented IL-1beta-associated loss of total cellular thiols. Model/species: Differentiated human Caco-2 intestinal epithelial monolayers Tissue: Intestinal epithelial model Exposure: Indicaxanthin 5-25 micromolar with IL-1beta 25 ng/mL Route: In vitro co-incubation Duration: 24 h for mediator release and permeability; earlier signaling assays Limits: No clinical IBD treatment effect or molecular binding site was established. Total thiols must not be relabeled as a specific glutathione measurement. Primary reference: Indicaxanthin inhibits NADPH oxidase (NOX)-1 activation and NF-κB-dependent release of inflammatory mediators and prevents the increase of epithelial permeability in IL-1β-exposed Caco-2 cells. (2014). https://pubmed.ncbi.nlm.nih.gov/23931157/ DOI: 10.1017/S0007114513002663
Complete structured claim and evidence
Indicaxanthin prevented the increase in epithelial permeability caused by IL-1beta.
Indicaxanthin → Epithelial permeability of human Caco-2 monolayers source_derived_draftungraded
Experimental context and source evidence
dose
Indicaxanthin 5-25 micromolar with IL-1beta 25 ng/mL
duration
24 h for mediator release and permeability; earlier signaling assays
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Differentiated human Caco-2 intestinal epithelial monolayers
limitations
No clinical IBD treatment effect or molecular binding site was established. Total thiols must not be relabeled as a specific glutathione measurement.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Differentiated human Caco-2 intestinal epithelial monolayers
plain_language
Indicaxanthin prevented the increase in epithelial permeability caused by IL-1beta.
primary_references
Indicaxanthin inhibits NADPH oxidase (NOX)-1 activation and NF-κB-dependent release of inflammatory mediators and prevents the increase of epithelial permeability in IL-1β-exposed Caco-2 cells. (2014). https://pubmed.ncbi.nlm.nih.gov/23931157/ DOI: 10.1017/S0007114513002663
route
In vitro co-incubation
tissue
Intestinal epithelial model
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 317–325
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Differentiated human Caco-2 intestinal epithelial monolayers · source_derived_draft · unverified_draft
## betalains-caco2-barrier Indicaxanthin prevented the increase in epithelial permeability caused by IL-1beta. Model/species: Differentiated human Caco-2 intestinal epithelial monolayers Tissue: Intestinal epithelial model Exposure: Indicaxanthin 5-25 micromolar with IL-1beta 25 ng/mL Route: In vitro co-incubation Duration: 24 h for mediator release and permeability; earlier signaling assays Limits: No clinical IBD treatment effect or molecular binding site was established. Total thiols must not be relabeled as a specific glutathione measurement. Primary reference: Indicaxanthin inhibits NADPH oxidase (NOX)-1 activation and NF-κB-dependent release of inflammatory mediators and prevents the increase of epithelial permeability in IL-1β-exposed Caco-2 cells. (2014). https://pubmed.ncbi.nlm.nih.gov/23931157/ DOI: 10.1017/S0007114513002663
Complete structured claim and evidence
Indicaxanthin prevented 7-ketocholesterol-associated NOX4 overexpression in THP-1 cells.
Indicaxanthin → Human NADPH oxidase 4 / NOX4 source_derived_draftungraded
Experimental context and source evidence
dose
Indicaxanthin 2.5 micromolar; 7-ketocholesterol challenge concentration not specified in accessed abstract
duration
Kinetic observations within 24 h
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Human THP-1 monocyte/macrophage cells challenged with 7-ketocholesterol
limitations
Calcium preservation is not calcium chelation, dietary calcium depletion or proof of a specific calcium-channel target; clinical plaque regression was not tested.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Human THP-1 monocyte/macrophage cells challenged with 7-ketocholesterol
plain_language
Indicaxanthin prevented 7-ketocholesterol-associated NOX4 overexpression in THP-1 cells.
primary_references
Phytochemical indicaxanthin suppresses 7-ketocholesterol-induced THP-1 cell apoptosis by preventing cytosolic Ca(2+) increase and oxidative stress. (2013). https://pubmed.ncbi.nlm.nih.gov/23228674/ DOI: 10.1017/S000711451200493X
route
In vitro co-incubation
tissue
Myeloid cells; cytosol and mitochondria
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 327–335
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Human THP-1 monocyte/macrophage cells challenged with 7-ketocholesterol · source_derived_draft · unverified_draft
## betalains-thp1-nox4 Indicaxanthin prevented 7-ketocholesterol-associated NOX4 overexpression in THP-1 cells. Model/species: Human THP-1 monocyte/macrophage cells challenged with 7-ketocholesterol Tissue: Myeloid cells; cytosol and mitochondria Exposure: Indicaxanthin 2.5 micromolar; 7-ketocholesterol challenge concentration not specified in accessed abstract Route: In vitro co-incubation Duration: Kinetic observations within 24 h Limits: Calcium preservation is not calcium chelation, dietary calcium depletion or proof of a specific calcium-channel target; clinical plaque regression was not tested. Primary reference: Phytochemical indicaxanthin suppresses 7-ketocholesterol-induced THP-1 cell apoptosis by preventing cytosolic Ca(2+) increase and oxidative stress. (2013). https://pubmed.ncbi.nlm.nih.gov/23228674/ DOI: 10.1017/S000711451200493X
Complete structured claim and evidence
Indicaxanthin preserved cytosolic calcium homeostasis during the 7-ketocholesterol challenge.
Indicaxanthin → Cytosolic calcium in human THP-1 cells source_derived_draftungraded
Experimental context and source evidence
dose
Indicaxanthin 2.5 micromolar; 7-ketocholesterol challenge concentration not specified in accessed abstract
duration
Kinetic observations within 24 h
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Human THP-1 monocyte/macrophage cells challenged with 7-ketocholesterol
limitations
Calcium preservation is not calcium chelation, dietary calcium depletion or proof of a specific calcium-channel target; clinical plaque regression was not tested.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Human THP-1 monocyte/macrophage cells challenged with 7-ketocholesterol
plain_language
Indicaxanthin preserved cytosolic calcium homeostasis during the 7-ketocholesterol challenge.
primary_references
Phytochemical indicaxanthin suppresses 7-ketocholesterol-induced THP-1 cell apoptosis by preventing cytosolic Ca(2+) increase and oxidative stress. (2013). https://pubmed.ncbi.nlm.nih.gov/23228674/ DOI: 10.1017/S000711451200493X
route
In vitro co-incubation
tissue
Myeloid cells; cytosol and mitochondria
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 337–345
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Human THP-1 monocyte/macrophage cells challenged with 7-ketocholesterol · source_derived_draft · unverified_draft
## betalains-thp1-calcium Indicaxanthin preserved cytosolic calcium homeostasis during the 7-ketocholesterol challenge. Model/species: Human THP-1 monocyte/macrophage cells challenged with 7-ketocholesterol Tissue: Myeloid cells; cytosol and mitochondria Exposure: Indicaxanthin 2.5 micromolar; 7-ketocholesterol challenge concentration not specified in accessed abstract Route: In vitro co-incubation Duration: Kinetic observations within 24 h Limits: Calcium preservation is not calcium chelation, dietary calcium depletion or proof of a specific calcium-channel target; clinical plaque regression was not tested. Primary reference: Phytochemical indicaxanthin suppresses 7-ketocholesterol-induced THP-1 cell apoptosis by preventing cytosolic Ca(2+) increase and oxidative stress. (2013). https://pubmed.ncbi.nlm.nih.gov/23228674/ DOI: 10.1017/S000711451200493X
Complete structured claim and evidence
Co-incubating 2.5 micromolar indicaxanthin prevented the measured 7-ketocholesterol-induced pro-apoptotic events.
Indicaxanthin → 7-Ketocholesterol-induced apoptosis in human THP-1 cells source_derived_draftungraded
Experimental context and source evidence
dose
Indicaxanthin 2.5 micromolar; 7-ketocholesterol challenge concentration not specified in accessed abstract
duration
Kinetic observations within 24 h
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Human THP-1 monocyte/macrophage cells challenged with 7-ketocholesterol
limitations
Calcium preservation is not calcium chelation, dietary calcium depletion or proof of a specific calcium-channel target; clinical plaque regression was not tested.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Human THP-1 monocyte/macrophage cells challenged with 7-ketocholesterol
plain_language
Co-incubating 2.5 micromolar indicaxanthin prevented the measured 7-ketocholesterol-induced pro-apoptotic events.
primary_references
Phytochemical indicaxanthin suppresses 7-ketocholesterol-induced THP-1 cell apoptosis by preventing cytosolic Ca(2+) increase and oxidative stress. (2013). https://pubmed.ncbi.nlm.nih.gov/23228674/ DOI: 10.1017/S000711451200493X
route
In vitro co-incubation
tissue
Myeloid cells; cytosol and mitochondria
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 347–355
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Human THP-1 monocyte/macrophage cells challenged with 7-ketocholesterol · source_derived_draft · unverified_draft
## betalains-thp1-apoptosis Co-incubating 2.5 micromolar indicaxanthin prevented the measured 7-ketocholesterol-induced pro-apoptotic events. Model/species: Human THP-1 monocyte/macrophage cells challenged with 7-ketocholesterol Tissue: Myeloid cells; cytosol and mitochondria Exposure: Indicaxanthin 2.5 micromolar; 7-ketocholesterol challenge concentration not specified in accessed abstract Route: In vitro co-incubation Duration: Kinetic observations within 24 h Limits: Calcium preservation is not calcium chelation, dietary calcium depletion or proof of a specific calcium-channel target; clinical plaque regression was not tested. Primary reference: Phytochemical indicaxanthin suppresses 7-ketocholesterol-induced THP-1 cell apoptosis by preventing cytosolic Ca(2+) increase and oxidative stress. (2013). https://pubmed.ncbi.nlm.nih.gov/23228674/ DOI: 10.1017/S000711451200493X
Complete structured claim and evidence
Betanin increased heme oxygenase-1 in the Caco-2 comparison; the two tested betaxanthins did not share this response.
Betanin → Human heme oxygenase 1 / HMOX1 source_derived_draftungraded
Experimental context and source evidence
dose
Betalains 5-80 micromolar
duration
Not specified in accessed primary abstract
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Human Caco-2 intestinal epithelial cell model
limitations
Low apparent permeability in cultured cells is not a measured human oral bioavailability fraction; findings depend on pigment and assay. Expression response in this cell model; not direct HMOX1 activation or a demonstrated increase in heme turnover.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Human Caco-2 intestinal epithelial cell model
plain_language
Betanin increased heme oxygenase-1 in the Caco-2 comparison; the two tested betaxanthins did not share this response.
primary_references
Uptake and Immunomodulatory Properties of Betanin, Vulgaxanthin I and Indicaxanthin towards Caco-2 Intestinal Cells. (2022). https://pubmed.ncbi.nlm.nih.gov/36009345/ DOI: 10.3390/antiox11081627
route
In vitro exposure
tissue
Intestinal cells and monolayer transport
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 357–365
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Human Caco-2 intestinal epithelial cell model · source_derived_draft · unverified_draft
## betalains-caco2-hmox1 Betanin increased heme oxygenase-1 in the Caco-2 comparison; the two tested betaxanthins did not share this response. Model/species: Human Caco-2 intestinal epithelial cell model Tissue: Intestinal cells and monolayer transport Exposure: Betalains 5-80 micromolar Route: In vitro exposure Duration: Not specified in accessed primary abstract Limits: Low apparent permeability in cultured cells is not a measured human oral bioavailability fraction; findings depend on pigment and assay. Expression response in this cell model; not direct HMOX1 activation or a demonstrated increase in heme turnover. Primary reference: Uptake and Immunomodulatory Properties of Betanin, Vulgaxanthin I and Indicaxanthin towards Caco-2 Intestinal Cells. (2022). https://pubmed.ncbi.nlm.nih.gov/36009345/ DOI: 10.3390/antiox11081627
Complete structured claim and evidence
Betanin showed low apparent permeability across Caco-2 monolayers; the reported three-pigment range was 4.2-8.9 x 10^-7 cm/s.
Betanin → Apparent betanin permeability in human Caco-2 monolayers source_derived_draftungraded
Experimental context and source evidence
dose
Betalains 5-80 micromolar
duration
Not specified in accessed primary abstract
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Human Caco-2 intestinal epithelial cell model
limitations
Low apparent permeability in cultured cells is not a measured human oral bioavailability fraction; findings depend on pigment and assay. The range spans the three compounds; it is not an assigned compound-specific coefficient.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Human Caco-2 intestinal epithelial cell model
plain_language
Betanin showed low apparent permeability across Caco-2 monolayers; the reported three-pigment range was 4.2-8.9 x 10^-7 cm/s.
primary_references
Uptake and Immunomodulatory Properties of Betanin, Vulgaxanthin I and Indicaxanthin towards Caco-2 Intestinal Cells. (2022). https://pubmed.ncbi.nlm.nih.gov/36009345/ DOI: 10.3390/antiox11081627
route
In vitro exposure
tissue
Intestinal cells and monolayer transport
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 367–375
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Human Caco-2 intestinal epithelial cell model · source_derived_draft · unverified_draft
## betalains-betanin-transport Betanin showed low apparent permeability across Caco-2 monolayers; the reported three-pigment range was 4.2-8.9 x 10^-7 cm/s. Model/species: Human Caco-2 intestinal epithelial cell model Tissue: Intestinal cells and monolayer transport Exposure: Betalains 5-80 micromolar Route: In vitro exposure Duration: Not specified in accessed primary abstract Limits: Low apparent permeability in cultured cells is not a measured human oral bioavailability fraction; findings depend on pigment and assay. The range spans the three compounds; it is not an assigned compound-specific coefficient. Primary reference: Uptake and Immunomodulatory Properties of Betanin, Vulgaxanthin I and Indicaxanthin towards Caco-2 Intestinal Cells. (2022). https://pubmed.ncbi.nlm.nih.gov/36009345/ DOI: 10.3390/antiox11081627
Complete structured claim and evidence
Indicaxanthin showed low apparent permeability across Caco-2 monolayers; the reported three-pigment range was 4.2-8.9 x 10^-7 cm/s.
Indicaxanthin → Apparent indicaxanthin permeability in human Caco-2 monolayers source_derived_draftungraded
Experimental context and source evidence
dose
Betalains 5-80 micromolar
duration
Not specified in accessed primary abstract
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Human Caco-2 intestinal epithelial cell model
limitations
Low apparent permeability in cultured cells is not a measured human oral bioavailability fraction; findings depend on pigment and assay. The range spans the three compounds; it is not an assigned compound-specific coefficient.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Human Caco-2 intestinal epithelial cell model
plain_language
Indicaxanthin showed low apparent permeability across Caco-2 monolayers; the reported three-pigment range was 4.2-8.9 x 10^-7 cm/s.
primary_references
Uptake and Immunomodulatory Properties of Betanin, Vulgaxanthin I and Indicaxanthin towards Caco-2 Intestinal Cells. (2022). https://pubmed.ncbi.nlm.nih.gov/36009345/ DOI: 10.3390/antiox11081627
route
In vitro exposure
tissue
Intestinal cells and monolayer transport
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 377–385
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Human Caco-2 intestinal epithelial cell model · source_derived_draft · unverified_draft
## betalains-indicaxanthin-transport Indicaxanthin showed low apparent permeability across Caco-2 monolayers; the reported three-pigment range was 4.2-8.9 x 10^-7 cm/s. Model/species: Human Caco-2 intestinal epithelial cell model Tissue: Intestinal cells and monolayer transport Exposure: Betalains 5-80 micromolar Route: In vitro exposure Duration: Not specified in accessed primary abstract Limits: Low apparent permeability in cultured cells is not a measured human oral bioavailability fraction; findings depend on pigment and assay. The range spans the three compounds; it is not an assigned compound-specific coefficient. Primary reference: Uptake and Immunomodulatory Properties of Betanin, Vulgaxanthin I and Indicaxanthin towards Caco-2 Intestinal Cells. (2022). https://pubmed.ncbi.nlm.nih.gov/36009345/ DOI: 10.3390/antiox11081627
Complete structured claim and evidence
Vulgaxanthin-i showed low apparent permeability across Caco-2 monolayers; the reported three-pigment range was 4.2-8.9 x 10^-7 cm/s.
Vulgaxanthin I → Apparent vulgaxanthin-i permeability in human Caco-2 monolayers source_derived_draftungraded
Experimental context and source evidence
dose
Betalains 5-80 micromolar
duration
Not specified in accessed primary abstract
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Human Caco-2 intestinal epithelial cell model
limitations
Low apparent permeability in cultured cells is not a measured human oral bioavailability fraction; findings depend on pigment and assay. The range spans the three compounds; it is not an assigned compound-specific coefficient.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Human Caco-2 intestinal epithelial cell model
plain_language
Vulgaxanthin-i showed low apparent permeability across Caco-2 monolayers; the reported three-pigment range was 4.2-8.9 x 10^-7 cm/s.
primary_references
Uptake and Immunomodulatory Properties of Betanin, Vulgaxanthin I and Indicaxanthin towards Caco-2 Intestinal Cells. (2022). https://pubmed.ncbi.nlm.nih.gov/36009345/ DOI: 10.3390/antiox11081627
route
In vitro exposure
tissue
Intestinal cells and monolayer transport
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 387–395
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Human Caco-2 intestinal epithelial cell model · source_derived_draft · unverified_draft
## betalains-vulgaxanthin-i-transport Vulgaxanthin-i showed low apparent permeability across Caco-2 monolayers; the reported three-pigment range was 4.2-8.9 x 10^-7 cm/s. Model/species: Human Caco-2 intestinal epithelial cell model Tissue: Intestinal cells and monolayer transport Exposure: Betalains 5-80 micromolar Route: In vitro exposure Duration: Not specified in accessed primary abstract Limits: Low apparent permeability in cultured cells is not a measured human oral bioavailability fraction; findings depend on pigment and assay. The range spans the three compounds; it is not an assigned compound-specific coefficient. Primary reference: Uptake and Immunomodulatory Properties of Betanin, Vulgaxanthin I and Indicaxanthin towards Caco-2 Intestinal Cells. (2022). https://pubmed.ncbi.nlm.nih.gov/36009345/ DOI: 10.3390/antiox11081627
Complete structured claim and evidence
Betanin lowered NOX2 mRNA in the stimulated murine macrophage comparison.
Betanin → Mouse CYBB / gp91phox source_derived_draftungraded
Experimental context and source evidence
dose
Individual pigments 1-100 micromolar; LPS inflammatory stimulation or hydrogen peroxide oxidative challenge
duration
Not specified in accessed primary abstract
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Mouse RAW 264.7 macrophages
limitations
Mouse-cell results are separate from human intestinal assays. Pro-oxidant effects under peroxide challenge do not imply every dietary exposure is harmful. Transcript measurement; not direct enzyme inhibition.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Mouse RAW 264.7 macrophages
plain_language
Betanin lowered NOX2 mRNA in the stimulated murine macrophage comparison.
primary_references
Differential Effects of Betacyanin and Betaxanthin Pigments on Oxidative Stress and Inflammatory Response in Murine Macrophages. (2023). https://pubmed.ncbi.nlm.nih.gov/37203590/ DOI: 10.1002/mnfr.202200583
route
In vitro exposure
tissue
Macrophages
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 397–405
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Mouse RAW 264.7 macrophages · source_derived_draft · unverified_draft
## betalains-betanin-mouse-nox2 Betanin lowered NOX2 mRNA in the stimulated murine macrophage comparison. Model/species: Mouse RAW 264.7 macrophages Tissue: Macrophages Exposure: Individual pigments 1-100 micromolar; LPS inflammatory stimulation or hydrogen peroxide oxidative challenge Route: In vitro exposure Duration: Not specified in accessed primary abstract Limits: Mouse-cell results are separate from human intestinal assays. Pro-oxidant effects under peroxide challenge do not imply every dietary exposure is harmful. Transcript measurement; not direct enzyme inhibition. Primary reference: Differential Effects of Betacyanin and Betaxanthin Pigments on Oxidative Stress and Inflammatory Response in Murine Macrophages. (2023). https://pubmed.ncbi.nlm.nih.gov/37203590/ DOI: 10.1002/mnfr.202200583
Complete structured claim and evidence
Indicaxanthin lowered NOX2 mRNA in the stimulated murine macrophage comparison.
Indicaxanthin → Mouse CYBB / gp91phox source_derived_draftungraded
Experimental context and source evidence
dose
Individual pigments 1-100 micromolar; LPS inflammatory stimulation or hydrogen peroxide oxidative challenge
duration
Not specified in accessed primary abstract
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Mouse RAW 264.7 macrophages
limitations
Mouse-cell results are separate from human intestinal assays. Pro-oxidant effects under peroxide challenge do not imply every dietary exposure is harmful. Transcript measurement; not direct enzyme inhibition.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Mouse RAW 264.7 macrophages
plain_language
Indicaxanthin lowered NOX2 mRNA in the stimulated murine macrophage comparison.
primary_references
Differential Effects of Betacyanin and Betaxanthin Pigments on Oxidative Stress and Inflammatory Response in Murine Macrophages. (2023). https://pubmed.ncbi.nlm.nih.gov/37203590/ DOI: 10.1002/mnfr.202200583
route
In vitro exposure
tissue
Macrophages
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 407–415
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Mouse RAW 264.7 macrophages · source_derived_draft · unverified_draft
## betalains-indicaxanthin-mouse-nox2 Indicaxanthin lowered NOX2 mRNA in the stimulated murine macrophage comparison. Model/species: Mouse RAW 264.7 macrophages Tissue: Macrophages Exposure: Individual pigments 1-100 micromolar; LPS inflammatory stimulation or hydrogen peroxide oxidative challenge Route: In vitro exposure Duration: Not specified in accessed primary abstract Limits: Mouse-cell results are separate from human intestinal assays. Pro-oxidant effects under peroxide challenge do not imply every dietary exposure is harmful. Transcript measurement; not direct enzyme inhibition. Primary reference: Differential Effects of Betacyanin and Betaxanthin Pigments on Oxidative Stress and Inflammatory Response in Murine Macrophages. (2023). https://pubmed.ncbi.nlm.nih.gov/37203590/ DOI: 10.1002/mnfr.202200583
Complete structured claim and evidence
Vulgaxanthin-i lowered NOX2 mRNA in the stimulated murine macrophage comparison.
Vulgaxanthin I → Mouse CYBB / gp91phox source_derived_draftungraded
Experimental context and source evidence
dose
Individual pigments 1-100 micromolar; LPS inflammatory stimulation or hydrogen peroxide oxidative challenge
duration
Not specified in accessed primary abstract
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Mouse RAW 264.7 macrophages
limitations
Mouse-cell results are separate from human intestinal assays. Pro-oxidant effects under peroxide challenge do not imply every dietary exposure is harmful. Transcript measurement; not direct enzyme inhibition.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Mouse RAW 264.7 macrophages
plain_language
Vulgaxanthin-i lowered NOX2 mRNA in the stimulated murine macrophage comparison.
primary_references
Differential Effects of Betacyanin and Betaxanthin Pigments on Oxidative Stress and Inflammatory Response in Murine Macrophages. (2023). https://pubmed.ncbi.nlm.nih.gov/37203590/ DOI: 10.1002/mnfr.202200583
route
In vitro exposure
tissue
Macrophages
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 417–425
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Mouse RAW 264.7 macrophages · source_derived_draft · unverified_draft
## betalains-vulgaxanthin-i-mouse-nox2 Vulgaxanthin-i lowered NOX2 mRNA in the stimulated murine macrophage comparison. Model/species: Mouse RAW 264.7 macrophages Tissue: Macrophages Exposure: Individual pigments 1-100 micromolar; LPS inflammatory stimulation or hydrogen peroxide oxidative challenge Route: In vitro exposure Duration: Not specified in accessed primary abstract Limits: Mouse-cell results are separate from human intestinal assays. Pro-oxidant effects under peroxide challenge do not imply every dietary exposure is harmful. Transcript measurement; not direct enzyme inhibition. Primary reference: Differential Effects of Betacyanin and Betaxanthin Pigments on Oxidative Stress and Inflammatory Response in Murine Macrophages. (2023). https://pubmed.ncbi.nlm.nih.gov/37203590/ DOI: 10.1002/mnfr.202200583
Complete structured claim and evidence
Neobetanin lowered NOX2 mRNA in the stimulated murine macrophage comparison.
Neobetanin → Mouse CYBB / gp91phox source_derived_draftungraded
Experimental context and source evidence
dose
Individual pigments 1-100 micromolar; LPS inflammatory stimulation or hydrogen peroxide oxidative challenge
duration
Not specified in accessed primary abstract
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Mouse RAW 264.7 macrophages
limitations
Mouse-cell results are separate from human intestinal assays. Pro-oxidant effects under peroxide challenge do not imply every dietary exposure is harmful. Transcript measurement; not direct enzyme inhibition.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Mouse RAW 264.7 macrophages
plain_language
Neobetanin lowered NOX2 mRNA in the stimulated murine macrophage comparison.
primary_references
Differential Effects of Betacyanin and Betaxanthin Pigments on Oxidative Stress and Inflammatory Response in Murine Macrophages. (2023). https://pubmed.ncbi.nlm.nih.gov/37203590/ DOI: 10.1002/mnfr.202200583
route
In vitro exposure
tissue
Macrophages
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 427–435
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Mouse RAW 264.7 macrophages · source_derived_draft · unverified_draft
## betalains-neobetanin-mouse-nox2 Neobetanin lowered NOX2 mRNA in the stimulated murine macrophage comparison. Model/species: Mouse RAW 264.7 macrophages Tissue: Macrophages Exposure: Individual pigments 1-100 micromolar; LPS inflammatory stimulation or hydrogen peroxide oxidative challenge Route: In vitro exposure Duration: Not specified in accessed primary abstract Limits: Mouse-cell results are separate from human intestinal assays. Pro-oxidant effects under peroxide challenge do not imply every dietary exposure is harmful. Transcript measurement; not direct enzyme inhibition. Primary reference: Differential Effects of Betacyanin and Betaxanthin Pigments on Oxidative Stress and Inflammatory Response in Murine Macrophages. (2023). https://pubmed.ncbi.nlm.nih.gov/37203590/ DOI: 10.1002/mnfr.202200583
Complete structured claim and evidence
Indicaxanthin increased ROS beyond the hydrogen-peroxide-challenged level in RAW 264.7 cells.
Indicaxanthin → Reactive oxygen species generation in mouse RAW 264.7 macrophages source_derived_draftungraded
Experimental context and source evidence
dose
Individual pigments 1-100 micromolar; LPS inflammatory stimulation or hydrogen peroxide oxidative challenge
duration
Not specified in accessed primary abstract
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Mouse RAW 264.7 macrophages
limitations
Mouse-cell results are separate from human intestinal assays. Pro-oxidant effects under peroxide challenge do not imply every dietary exposure is harmful. Context difference from intestinal anti-inflammatory findings; not a contradiction or a universal pigment property.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Mouse RAW 264.7 macrophages
plain_language
Indicaxanthin increased ROS beyond the hydrogen-peroxide-challenged level in RAW 264.7 cells.
primary_references
Differential Effects of Betacyanin and Betaxanthin Pigments on Oxidative Stress and Inflammatory Response in Murine Macrophages. (2023). https://pubmed.ncbi.nlm.nih.gov/37203590/ DOI: 10.1002/mnfr.202200583
route
In vitro exposure
tissue
Macrophages
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 437–445
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Mouse RAW 264.7 macrophages · source_derived_draft · unverified_draft
## betalains-indicaxanthin-mouse-prooxidant Indicaxanthin increased ROS beyond the hydrogen-peroxide-challenged level in RAW 264.7 cells. Model/species: Mouse RAW 264.7 macrophages Tissue: Macrophages Exposure: Individual pigments 1-100 micromolar; LPS inflammatory stimulation or hydrogen peroxide oxidative challenge Route: In vitro exposure Duration: Not specified in accessed primary abstract Limits: Mouse-cell results are separate from human intestinal assays. Pro-oxidant effects under peroxide challenge do not imply every dietary exposure is harmful. Context difference from intestinal anti-inflammatory findings; not a contradiction or a universal pigment property. Primary reference: Differential Effects of Betacyanin and Betaxanthin Pigments on Oxidative Stress and Inflammatory Response in Murine Macrophages. (2023). https://pubmed.ncbi.nlm.nih.gov/37203590/ DOI: 10.1002/mnfr.202200583
Complete structured claim and evidence
Vulgaxanthin-i increased ROS beyond the hydrogen-peroxide-challenged level in RAW 264.7 cells.
Vulgaxanthin I → Reactive oxygen species generation in mouse RAW 264.7 macrophages source_derived_draftungraded
Experimental context and source evidence
dose
Individual pigments 1-100 micromolar; LPS inflammatory stimulation or hydrogen peroxide oxidative challenge
duration
Not specified in accessed primary abstract
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Mouse RAW 264.7 macrophages
limitations
Mouse-cell results are separate from human intestinal assays. Pro-oxidant effects under peroxide challenge do not imply every dietary exposure is harmful. Context difference from intestinal anti-inflammatory findings; not a contradiction or a universal pigment property.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Mouse RAW 264.7 macrophages
plain_language
Vulgaxanthin-i increased ROS beyond the hydrogen-peroxide-challenged level in RAW 264.7 cells.
primary_references
Differential Effects of Betacyanin and Betaxanthin Pigments on Oxidative Stress and Inflammatory Response in Murine Macrophages. (2023). https://pubmed.ncbi.nlm.nih.gov/37203590/ DOI: 10.1002/mnfr.202200583
route
In vitro exposure
tissue
Macrophages
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 447–455
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Mouse RAW 264.7 macrophages · source_derived_draft · unverified_draft
## betalains-vulgaxanthin-i-mouse-prooxidant Vulgaxanthin-i increased ROS beyond the hydrogen-peroxide-challenged level in RAW 264.7 cells. Model/species: Mouse RAW 264.7 macrophages Tissue: Macrophages Exposure: Individual pigments 1-100 micromolar; LPS inflammatory stimulation or hydrogen peroxide oxidative challenge Route: In vitro exposure Duration: Not specified in accessed primary abstract Limits: Mouse-cell results are separate from human intestinal assays. Pro-oxidant effects under peroxide challenge do not imply every dietary exposure is harmful. Context difference from intestinal anti-inflammatory findings; not a contradiction or a universal pigment property. Primary reference: Differential Effects of Betacyanin and Betaxanthin Pigments on Oxidative Stress and Inflammatory Response in Murine Macrophages. (2023). https://pubmed.ncbi.nlm.nih.gov/37203590/ DOI: 10.1002/mnfr.202200583
Complete structured claim and evidence
Indicaxanthin prevented smoke-extract-triggered Fas aggregation and recruitment of FADD and caspase-8 at erythrocyte membranes.
Indicaxanthin → Fas death-inducing signaling complex in human erythrocytes source_derived_draftungraded
Experimental context and source evidence
dose
Indicaxanthin 1-5 micromolar; aqueous cigarette smoke extract
duration
3 h
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Human isolated red blood cells challenged with cigarette smoke extract
limitations
An isolated-cell smoke-extract experiment does not establish protection against smoking-related disease; no direct Fas-binding assay was reported in the abstract.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Human isolated red blood cells challenged with cigarette smoke extract
plain_language
Indicaxanthin prevented smoke-extract-triggered Fas aggregation and recruitment of FADD and caspase-8 at erythrocyte membranes.
primary_references
Indicaxanthin prevents eryptosis induced by cigarette smoke extract by interfering with active Fas-mediated signaling. (2024). https://pubmed.ncbi.nlm.nih.gov/38520710/ DOI: 10.1002/biof.2051
route
Ex vivo co-incubation
tissue
Erythrocyte membrane and cytosol
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 457–465
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Human isolated red blood cells challenged with cigarette smoke extract · source_derived_draft · unverified_draft
## betalains-redcell-disc Indicaxanthin prevented smoke-extract-triggered Fas aggregation and recruitment of FADD and caspase-8 at erythrocyte membranes. Model/species: Human isolated red blood cells challenged with cigarette smoke extract Tissue: Erythrocyte membrane and cytosol Exposure: Indicaxanthin 1-5 micromolar; aqueous cigarette smoke extract Route: Ex vivo co-incubation Duration: 3 h Limits: An isolated-cell smoke-extract experiment does not establish protection against smoking-related disease; no direct Fas-binding assay was reported in the abstract. Primary reference: Indicaxanthin prevents eryptosis induced by cigarette smoke extract by interfering with active Fas-mediated signaling. (2024). https://pubmed.ncbi.nlm.nih.gov/38520710/ DOI: 10.1002/biof.2051
Complete structured claim and evidence
Indicaxanthin reduced smoke-extract-induced caspase-3 cleavage and activity in red cells.
Indicaxanthin → Human caspase-3 / CASP3 source_derived_draftungraded
Experimental context and source evidence
dose
Indicaxanthin 1-5 micromolar; aqueous cigarette smoke extract
duration
3 h
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Human isolated red blood cells challenged with cigarette smoke extract
limitations
An isolated-cell smoke-extract experiment does not establish protection against smoking-related disease; no direct Fas-binding assay was reported in the abstract.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Human isolated red blood cells challenged with cigarette smoke extract
plain_language
Indicaxanthin reduced smoke-extract-induced caspase-3 cleavage and activity in red cells.
primary_references
Indicaxanthin prevents eryptosis induced by cigarette smoke extract by interfering with active Fas-mediated signaling. (2024). https://pubmed.ncbi.nlm.nih.gov/38520710/ DOI: 10.1002/biof.2051
route
Ex vivo co-incubation
tissue
Erythrocyte membrane and cytosol
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 467–475
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Human isolated red blood cells challenged with cigarette smoke extract · source_derived_draft · unverified_draft
## betalains-redcell-casp3 Indicaxanthin reduced smoke-extract-induced caspase-3 cleavage and activity in red cells. Model/species: Human isolated red blood cells challenged with cigarette smoke extract Tissue: Erythrocyte membrane and cytosol Exposure: Indicaxanthin 1-5 micromolar; aqueous cigarette smoke extract Route: Ex vivo co-incubation Duration: 3 h Limits: An isolated-cell smoke-extract experiment does not establish protection against smoking-related disease; no direct Fas-binding assay was reported in the abstract. Primary reference: Indicaxanthin prevents eryptosis induced by cigarette smoke extract by interfering with active Fas-mediated signaling. (2024). https://pubmed.ncbi.nlm.nih.gov/38520710/ DOI: 10.1002/biof.2051
Complete structured claim and evidence
Indicaxanthin reduced ATP depletion during smoke-extract exposure of isolated red cells.
Indicaxanthin → Human erythrocyte ATP content source_derived_draftungraded
Experimental context and source evidence
dose
Indicaxanthin 1-5 micromolar; aqueous cigarette smoke extract
duration
3 h
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Human isolated red blood cells challenged with cigarette smoke extract
limitations
An isolated-cell smoke-extract experiment does not establish protection against smoking-related disease; no direct Fas-binding assay was reported in the abstract.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Human isolated red blood cells challenged with cigarette smoke extract
plain_language
Indicaxanthin reduced ATP depletion during smoke-extract exposure of isolated red cells.
primary_references
Indicaxanthin prevents eryptosis induced by cigarette smoke extract by interfering with active Fas-mediated signaling. (2024). https://pubmed.ncbi.nlm.nih.gov/38520710/ DOI: 10.1002/biof.2051
route
Ex vivo co-incubation
tissue
Erythrocyte membrane and cytosol
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 477–485
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Human isolated red blood cells challenged with cigarette smoke extract · source_derived_draft · unverified_draft
## betalains-redcell-atp Indicaxanthin reduced ATP depletion during smoke-extract exposure of isolated red cells. Model/species: Human isolated red blood cells challenged with cigarette smoke extract Tissue: Erythrocyte membrane and cytosol Exposure: Indicaxanthin 1-5 micromolar; aqueous cigarette smoke extract Route: Ex vivo co-incubation Duration: 3 h Limits: An isolated-cell smoke-extract experiment does not establish protection against smoking-related disease; no direct Fas-binding assay was reported in the abstract. Primary reference: Indicaxanthin prevents eryptosis induced by cigarette smoke extract by interfering with active Fas-mediated signaling. (2024). https://pubmed.ncbi.nlm.nih.gov/38520710/ DOI: 10.1002/biof.2051
Complete structured claim and evidence
Indicaxanthin reduced smoke-extract-induced phosphatidylserine externalization.
Indicaxanthin → Human erythrocyte surface phosphatidylserine exposure source_derived_draftungraded
Experimental context and source evidence
dose
Indicaxanthin 1-5 micromolar; aqueous cigarette smoke extract
duration
3 h
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Human isolated red blood cells challenged with cigarette smoke extract
limitations
An isolated-cell smoke-extract experiment does not establish protection against smoking-related disease; no direct Fas-binding assay was reported in the abstract.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Human isolated red blood cells challenged with cigarette smoke extract
plain_language
Indicaxanthin reduced smoke-extract-induced phosphatidylserine externalization.
primary_references
Indicaxanthin prevents eryptosis induced by cigarette smoke extract by interfering with active Fas-mediated signaling. (2024). https://pubmed.ncbi.nlm.nih.gov/38520710/ DOI: 10.1002/biof.2051
route
Ex vivo co-incubation
tissue
Erythrocyte membrane and cytosol
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 487–495
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Human isolated red blood cells challenged with cigarette smoke extract · source_derived_draft · unverified_draft
## betalains-redcell-ps Indicaxanthin reduced smoke-extract-induced phosphatidylserine externalization. Model/species: Human isolated red blood cells challenged with cigarette smoke extract Tissue: Erythrocyte membrane and cytosol Exposure: Indicaxanthin 1-5 micromolar; aqueous cigarette smoke extract Route: Ex vivo co-incubation Duration: 3 h Limits: An isolated-cell smoke-extract experiment does not establish protection against smoking-related disease; no direct Fas-binding assay was reported in the abstract. Primary reference: Indicaxanthin prevents eryptosis induced by cigarette smoke extract by interfering with active Fas-mediated signaling. (2024). https://pubmed.ncbi.nlm.nih.gov/38520710/ DOI: 10.1002/biof.2051
Complete structured claim and evidence
After cactus pear ingestion, plasma betanin peaked at 3 h and was undetectable by 12 h.
Cactus pear pulp in the 2004 betalain pharmacokinetic study → Human plasma betanin exposure source_derived_draftungraded
Experimental context and source evidence
dose
Single 500 g cactus pear pulp meal: 28 mg indicaxanthin and 16 mg betanin
duration
Plasma/urine followed for 12 h
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Eight healthy human volunteers
limitations
Whole-food exposure cannot attribute the LDL response exclusively to either pigment; urinary recovery is not absolute absorption.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Eight healthy human volunteers
plain_language
After cactus pear ingestion, plasma betanin peaked at 3 h and was undetectable by 12 h.
primary_references
Absorption, excretion, and distribution of dietary antioxidant betalains in LDLs: potential health effects of betalains in humans. (2004). https://pubmed.ncbi.nlm.nih.gov/15447903/ DOI: 10.1093/ajcn/80.4.941
route
Oral whole food
tissue
Plasma, urine and isolated LDL
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 497–505
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Eight healthy human volunteers · source_derived_draft · unverified_draft
## betalains-betanin-human-pk After cactus pear ingestion, plasma betanin peaked at 3 h and was undetectable by 12 h. Model/species: Eight healthy human volunteers Tissue: Plasma, urine and isolated LDL Exposure: Single 500 g cactus pear pulp meal: 28 mg indicaxanthin and 16 mg betanin Route: Oral whole food Duration: Plasma/urine followed for 12 h Limits: Whole-food exposure cannot attribute the LDL response exclusively to either pigment; urinary recovery is not absolute absorption. Primary reference: Absorption, excretion, and distribution of dietary antioxidant betalains in LDLs: potential health effects of betalains in humans. (2004). https://pubmed.ncbi.nlm.nih.gov/15447903/ DOI: 10.1093/ajcn/80.4.941
Complete structured claim and evidence
After cactus pear ingestion, plasma indicaxanthin peaked at 3 h and was undetectable by 12 h.
Cactus pear pulp in the 2004 betalain pharmacokinetic study → Human plasma indicaxanthin exposure source_derived_draftungraded
Experimental context and source evidence
dose
Single 500 g cactus pear pulp meal: 28 mg indicaxanthin and 16 mg betanin
duration
Plasma/urine followed for 12 h
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Eight healthy human volunteers
limitations
Whole-food exposure cannot attribute the LDL response exclusively to either pigment; urinary recovery is not absolute absorption.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Eight healthy human volunteers
plain_language
After cactus pear ingestion, plasma indicaxanthin peaked at 3 h and was undetectable by 12 h.
primary_references
Absorption, excretion, and distribution of dietary antioxidant betalains in LDLs: potential health effects of betalains in humans. (2004). https://pubmed.ncbi.nlm.nih.gov/15447903/ DOI: 10.1093/ajcn/80.4.941
route
Oral whole food
tissue
Plasma, urine and isolated LDL
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 507–515
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Eight healthy human volunteers · source_derived_draft · unverified_draft
## betalains-indicaxanthin-human-pk After cactus pear ingestion, plasma indicaxanthin peaked at 3 h and was undetectable by 12 h. Model/species: Eight healthy human volunteers Tissue: Plasma, urine and isolated LDL Exposure: Single 500 g cactus pear pulp meal: 28 mg indicaxanthin and 16 mg betanin Route: Oral whole food Duration: Plasma/urine followed for 12 h Limits: Whole-food exposure cannot attribute the LDL response exclusively to either pigment; urinary recovery is not absolute absorption. Primary reference: Absorption, excretion, and distribution of dietary antioxidant betalains in LDLs: potential health effects of betalains in humans. (2004). https://pubmed.ncbi.nlm.nih.gov/15447903/ DOI: 10.1093/ajcn/80.4.941
Complete structured claim and evidence
LDL isolated 3 and 5 h after cactus pear ingestion resisted ex vivo oxidation more strongly; LDL vitamin E and beta-carotene levels were unchanged.
Cactus pear pulp in the 2004 betalain pharmacokinetic study → Copper-driven LDL oxidation source_derived_draftungraded
Experimental context and source evidence
dose
Single 500 g cactus pear pulp meal: 28 mg indicaxanthin and 16 mg betanin
duration
Plasma/urine followed for 12 h
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Eight healthy human volunteers
limitations
Whole-food exposure cannot attribute the LDL response exclusively to either pigment; urinary recovery is not absolute absorption.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Eight healthy human volunteers
plain_language
LDL isolated 3 and 5 h after cactus pear ingestion resisted ex vivo oxidation more strongly; LDL vitamin E and beta-carotene levels were unchanged.
primary_references
Absorption, excretion, and distribution of dietary antioxidant betalains in LDLs: potential health effects of betalains in humans. (2004). https://pubmed.ncbi.nlm.nih.gov/15447903/ DOI: 10.1093/ajcn/80.4.941
route
Oral whole food
tissue
Plasma, urine and isolated LDL
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 517–525
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Eight healthy human volunteers · source_derived_draft · unverified_draft
## betalains-human-food-ldl LDL isolated 3 and 5 h after cactus pear ingestion resisted ex vivo oxidation more strongly; LDL vitamin E and beta-carotene levels were unchanged. Model/species: Eight healthy human volunteers Tissue: Plasma, urine and isolated LDL Exposure: Single 500 g cactus pear pulp meal: 28 mg indicaxanthin and 16 mg betanin Route: Oral whole food Duration: Plasma/urine followed for 12 h Limits: Whole-food exposure cannot attribute the LDL response exclusively to either pigment; urinary recovery is not absolute absorption. Primary reference: Absorption, excretion, and distribution of dietary antioxidant betalains in LDLs: potential health effects of betalains in humans. (2004). https://pubmed.ncbi.nlm.nih.gov/15447903/ DOI: 10.1093/ajcn/80.4.941
Complete structured claim and evidence
Betanin was undetectable at all sampled plasma time points after beetroot juice or whole beetroot in this crossover study.
Beetroot juice and whole beetroot in the 2017 pharmacokinetic study → Human plasma betanin exposure source_derived_draftungraded
Experimental context and source evidence
dose
250 mL beetroot juice or 300 g whole beetroot versus placebo
duration
Baseline and 1, 2, 3, 5 and 8 h
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Ten healthy men in a randomized crossover study
limitations
An undetectable parent compound is not proof of zero absorption. Food matrix, degradation and analytical methods differ from the cactus pear study. NOx is not itself a measurement of a betanin mechanism.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Ten healthy men in a randomized crossover study
plain_language
Betanin was undetectable at all sampled plasma time points after beetroot juice or whole beetroot in this crossover study.
primary_references
The plasma bioavailability of nitrate and betanin from Beta vulgaris rubra in humans. (2017). https://pubmed.ncbi.nlm.nih.gov/26873098/ DOI: 10.1007/s00394-016-1173-5
route
Oral food/drink
tissue
Venous plasma
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 527–535
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Ten healthy men in a randomized crossover study · source_derived_draft · unverified_draft
## betalains-beetroot-pk-null Betanin was undetectable at all sampled plasma time points after beetroot juice or whole beetroot in this crossover study. Model/species: Ten healthy men in a randomized crossover study Tissue: Venous plasma Exposure: 250 mL beetroot juice or 300 g whole beetroot versus placebo Route: Oral food/drink Duration: Baseline and 1, 2, 3, 5 and 8 h Limits: An undetectable parent compound is not proof of zero absorption. Food matrix, degradation and analytical methods differ from the cactus pear study. NOx is not itself a measurement of a betanin mechanism. Primary reference: The plasma bioavailability of nitrate and betanin from Beta vulgaris rubra in humans. (2017). https://pubmed.ncbi.nlm.nih.gov/26873098/ DOI: 10.1007/s00394-016-1173-5
Complete structured claim and evidence
Plasma NOx remained elevated for 8 h after beetroot juice and 5 h after whole beetroot despite undetectable plasma betanin.
Beetroot juice and whole beetroot in the 2017 pharmacokinetic study → Plasma NOx in the beetroot pharmacokinetic study source_derived_draftungraded
Experimental context and source evidence
dose
250 mL beetroot juice or 300 g whole beetroot versus placebo
duration
Baseline and 1, 2, 3, 5 and 8 h
evidence_access
Primary PubMed abstract; detailed exposure for PMID 23931157 additionally checked in publisher results. No uninspected full text is claimed.
evidence_scope
literature_reviewed; source-derived curation, not universally established human effects
experimental_model
Ten healthy men in a randomized crossover study
limitations
An undetectable parent compound is not proof of zero absorption. Food matrix, degradation and analytical methods differ from the cactus pear study. NOx is not itself a measurement of a betanin mechanism. Mixed-food nitrate-related observation; not a claim that betalains generate NO or mediate nitrate-associated performance effects.
nutrient_topic
Betalains collection; each molecular form, species, exposure and preparation remains explicit. · Betalains
organism
Ten healthy men in a randomized crossover study
plain_language
Plasma NOx remained elevated for 8 h after beetroot juice and 5 h after whole beetroot despite undetectable plasma betanin.
primary_references
The plasma bioavailability of nitrate and betanin from Beta vulgaris rubra in humans. (2017). https://pubmed.ncbi.nlm.nih.gov/26873098/ DOI: 10.1007/s00394-016-1173-5
route
Oral food/drink
tissue
Venous plasma
Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20) · lines 537–545
Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · supports · Ten healthy men in a randomized crossover study · source_derived_draft · unverified_draft
## betalains-beetroot-nox-separate Plasma NOx remained elevated for 8 h after beetroot juice and 5 h after whole beetroot despite undetectable plasma betanin. Model/species: Ten healthy men in a randomized crossover study Tissue: Venous plasma Exposure: 250 mL beetroot juice or 300 g whole beetroot versus placebo Route: Oral food/drink Duration: Baseline and 1, 2, 3, 5 and 8 h Limits: An undetectable parent compound is not proof of zero absorption. Food matrix, degradation and analytical methods differ from the cactus pear study. NOx is not itself a measurement of a betanin mechanism. Mixed-food nitrate-related observation; not a claim that betalains generate NO or mediate nitrate-associated performance effects. Primary reference: The plasma bioavailability of nitrate and betanin from Beta vulgaris rubra in humans. (2017). https://pubmed.ncbi.nlm.nih.gov/26873098/ DOI: 10.1007/s00394-016-1173-5
Complete structured claim and evidence
Myeloperoxidase used hydrogen peroxide to oxidize chloride to hypochlorous acid.
Human myeloperoxidase / MPO → Hypochlorous acid / HOCl source_derived_draftungraded
Experimental context and source evidence
evidence_span
{"source_cache": "artifacts/chloride-research/9359420.abstract.txt", "locator": "Exact primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "83dc6a264dfb45201104568ac58c76509aaa0fabca1f32efd25861146b4b38c0", "start_char": 0, "end_char": 1700, "text_sha256": "83dc6a264dfb45201104568ac58c76509aaa0fabca1f32efd25861146b4b38c0"}
experimental_model
Purified-enzyme substrate kinetics
exposure
100 mM chloride with varying thiocyanate
limitations
Product chemistry under assay conditions; not a recommendation to raise chloride or thiocyanate intake.
nutrient_topic
Chloride research collection; topical membership is not evidence of a direct dietary effect. · Chloride
organism
Human neutrophil enzyme
plain_language
Immune chemistry can convert chloride into a reactive antimicrobial oxidant.
primary_references
[chloride-p9359420] Thiocyanate and chloride as competing substrates for myeloperoxidase. (1997). https://pubmed.ncbi.nlm.nih.gov/9359420/ DOI: 10.1042/bj3270487
tissue_or_cell_type
Myeloperoxidase reaction mixture
Chloride: transport, acid-base balance, nutrient interactions and loss states (2026-09-17) · lines 614–625
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Purified-enzyme substrate kinetics · source_derived_draft · unverified_draft
### chloride-mpo-hocl Myeloperoxidase used hydrogen peroxide to oxidize chloride to hypochlorous acid. Condition category: normal nutrient_topic: Chloride research collection; topical membership is not evidence of a direct dietary effect. plain_language: Immune chemistry can convert chloride into a reactive antimicrobial oxidant. organism: Human neutrophil enzyme tissue_or_cell_type: Myeloperoxidase reaction mixture experimental_model: Purified-enzyme substrate kinetics limitations: Product chemistry under assay conditions; not a recommendation to raise chloride or thiocyanate intake. exposure: 100 mM chloride with varying thiocyanate evidence_span: {"source_cache": "artifacts/chloride-research/9359420.abstract.txt", "locator": "Exact primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "83dc6a264dfb45201104568ac58c76509aaa0fabca1f32efd25861146b4b38c0", "start_char": 0, "end_char": 1700, "text_sha256": "83dc6a264dfb45201104568ac58c76509aaa0fabca1f32efd25861146b4b38c0"} [chloride-p9359420] Thiocyanate and chloride as competing substrates for myeloperoxidase. (1997). https://pubmed.ncbi.nlm.nih.gov/9359420/ DOI: 10.1042/bj3270487
Complete structured claim and evidence
Purified myeloperoxidase plus hydrogen peroxide, chloride and taurine generated taurine chloramine; removing chloride or peroxide, or inhibiting MPO, blocked generation.
Human myeloperoxidase / MPO → Taurine chloramine / TauCl source_derived_draftungraded
Experimental context and source evidence
evidence_access
Primary abstract
experimental_model
Purified human MPO system and stimulated human neutrophils.
limitations
Taurine chloramine remains an oxidant; free taurine is not equivalent to every chloramine effect.
nutrient_topic
Taurine collection; molecular form, preparation, species, exposure and manipulation remain explicit. · Taurine
plain_language
An immune-cell oxidant reacts with taurine to make a different active molecule.
primary_references
Chlorination of taurine by human neutrophils. Evidence for hypochlorous acid generation. · 1982 · https://pubmed.ncbi.nlm.nih.gov/6286728/ · DOI 10.1172/jci110652
Taurine: synthesis, transport, mitochondrial decoding and nutrient interactions (2026-09-19) · lines 361–367
AI-assisted research curation; primary-abstract references and experimental limitations individually identified. Not publisher full text. · supports · Purified human MPO system and stimulated human neutrophils. · source_derived_draft · unverified_draft
## taurine-mpo-chlorination An immune-cell oxidant reacts with taurine to make a different active molecule. Purified myeloperoxidase plus hydrogen peroxide, chloride and taurine generated taurine chloramine; removing chloride or peroxide, or inhibiting MPO, blocked generation. Model: Purified human MPO system and stimulated human neutrophils. Limitations: Taurine chloramine remains an oxidant; free taurine is not equivalent to every chloramine effect. Evidence access: Primary abstract Chlorination of taurine by human neutrophils. Evidence for hypochlorous acid generation. · 1982 · https://pubmed.ncbi.nlm.nih.gov/6286728/ · DOI 10.1172/jci110652
Complete structured claim and evidence

Availability and dependencies

Each situation shows the normal role first, then what the sources report under a specific condition. A shortfall in the diet, a fault in the machinery, and a low blood reading are kept separate because they are not the same thing.

The sources

Every document behind this chapter is preserved word for word. Open one to read it in full with its recorded conflicts marked in place.

Betalains: mechanisms, molecular forms and cross-actor connections (2026-09-20)Original AI-assisted curation of twelve primary research papers; study-specific PubMed/DOI links and limitations retained. Not publisher full text. · unverified_draftRead preserved source
Chloride: transport, acid-base balance, nutrient interactions and loss states (2026-09-17)AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · unverified_draftRead preserved source
Taurine: synthesis, transport, mitochondrial decoding and nutrient interactions (2026-09-19)AI-assisted research curation; primary-abstract references and experimental limitations individually identified. Not publisher full text. · unverified_draftRead preserved source

Recorded disagreements

Where two sources say different things, both are kept and the difference is explained. You can discuss a disagreement or propose a mechanism that might account for it.

Open questions in this collection

Questions the curators could not answer from the sources in front of them, kept here with the reason each one is still open. These are gaps in this collection, not findings or proof that no one has studied them.

Chapters are assembled from supplied drafts and curated literature summaries. Statements remain unverified against the primary studies, and the ledger is not medical advice.

Evidence, AI assistance and curation standards

Betalains

The mechanisms

Betanin is the 5-O-beta-glucoside of betanidin.

Added betanin inhibited iron-redox-driven lipid peroxidation in cell-free lipid preparations.

Betanidin inhibited cytochrome-c-driven linoleate peroxidation, with an assay IC50 of 0.8 micromolar.

Adding betanin to human plasma produced pigment-enriched LDL after particle isolation.

LDL enriched with betanin showed a longer lag before copper-induced oxidation.

Adding indicaxanthin to human plasma produced pigment-enriched LDL after particle isolation.

LDL enriched with indicaxanthin showed a longer lag before copper-induced oxidation.

Indicaxanthin preserved LDL vitamin E early during oxidation; combined action protected LDL more than sequential separate action.

Betanin did not produce the early vitamin E preservation observed with indicaxanthin in this LDL experiment.

Betanin donated one electron to MPO compound I, producing compound II.

Betanin reduced MPO compound II to the native ferric enzyme.

Betanin reacted directly with hypochlorous acid in the kinetic assay.

Betanin stimulated or inhibited MPO chlorination at neutral pH depending on concentration; at pH 5 only inhibition was observed.

Indicaxanthin donated one electron to MPO compound I, producing compound II.

Indicaxanthin reduced MPO compound II to the native ferric enzyme.

Indicaxanthin reacted directly with hypochlorous acid in the kinetic assay.

Indicaxanthin stimulated or inhibited MPO chlorination at neutral pH depending on concentration; at pH 5 only inhibition was observed.

Betanin reduced lipid hydroperoxide formation during MPO/nitrite-mediated oxidation of human LDL.

Unidentified products generated by MPO/nitrite oxidation of betanin also inhibited LDL oxidation in the assay.

Betanin promoted nuclear redistribution of Nrf2 in both THLE-2 and HepG2 cells.

Betanin increased Nrf2 binding to antioxidant response elements in THLE-2 cells; this response was absent in HepG2 cells.

Betanin increased NQO1 transcript and protein abundance in THLE-2 cells.

Betanin increased GSTP transcript and protein abundance in THLE-2 cells.

Betanin did not alter GSTP1 methylation in HepG2 cells.

Indicaxanthin co-treatment prevented IL-1beta-induced NOX1 activation in Caco-2 monolayers.

Indicaxanthin co-treatment suppressed IL-1beta-induced NF-kappaB activation.

Indicaxanthin reduced induced COX-2 expression in IL-1beta-exposed Caco-2 cells.

Indicaxanthin reduced induced nitric oxide synthase expression in IL-1beta-exposed Caco-2 cells.

Indicaxanthin prevented the IL-1beta-associated rise in cellular oxidant signal.

Indicaxanthin prevented IL-1beta-associated loss of total cellular thiols.

Indicaxanthin prevented the increase in epithelial permeability caused by IL-1beta.

Indicaxanthin prevented 7-ketocholesterol-associated NOX4 overexpression in THP-1 cells.

Indicaxanthin preserved cytosolic calcium homeostasis during the 7-ketocholesterol challenge.

Co-incubating 2.5 micromolar indicaxanthin prevented the measured 7-ketocholesterol-induced pro-apoptotic events.

Betanin increased heme oxygenase-1 in the Caco-2 comparison; the two tested betaxanthins did not share this response.

Betanin showed low apparent permeability across Caco-2 monolayers; the reported three-pigment range was 4.2-8.9 x 10^-7 cm/s.

Indicaxanthin showed low apparent permeability across Caco-2 monolayers; the reported three-pigment range was 4.2-8.9 x 10^-7 cm/s.

Vulgaxanthin-i showed low apparent permeability across Caco-2 monolayers; the reported three-pigment range was 4.2-8.9 x 10^-7 cm/s.

Betanin lowered NOX2 mRNA in the stimulated murine macrophage comparison.

Indicaxanthin lowered NOX2 mRNA in the stimulated murine macrophage comparison.

Vulgaxanthin-i lowered NOX2 mRNA in the stimulated murine macrophage comparison.

Neobetanin lowered NOX2 mRNA in the stimulated murine macrophage comparison.

Indicaxanthin increased ROS beyond the hydrogen-peroxide-challenged level in RAW 264.7 cells.

Vulgaxanthin-i increased ROS beyond the hydrogen-peroxide-challenged level in RAW 264.7 cells.

Indicaxanthin prevented smoke-extract-triggered Fas aggregation and recruitment of FADD and caspase-8 at erythrocyte membranes.

Indicaxanthin reduced smoke-extract-induced caspase-3 cleavage and activity in red cells.

Indicaxanthin reduced ATP depletion during smoke-extract exposure of isolated red cells.

Indicaxanthin reduced smoke-extract-induced phosphatidylserine externalization.

After cactus pear ingestion, plasma betanin peaked at 3 h and was undetectable by 12 h.

After cactus pear ingestion, plasma indicaxanthin peaked at 3 h and was undetectable by 12 h.

LDL isolated 3 and 5 h after cactus pear ingestion resisted ex vivo oxidation more strongly; LDL vitamin E and beta-carotene levels were unchanged.

Betanin was undetectable at all sampled plasma time points after beetroot juice or whole beetroot in this crossover study.

Plasma NOx remained elevated for 8 h after beetroot juice and 5 h after whole beetroot despite undetectable plasma betanin.

Myeloperoxidase used hydrogen peroxide to oxidize chloride to hypochlorous acid.

Purified myeloperoxidase plus hydrogen peroxide, chloride and taurine generated taurine chloramine; removing chloride or peroxide, or inhibiting MPO, blocked generation.

Availability and dependencies

The sources

Recorded disagreements

Open questions in this collection