Component

Low-density lipoprotein particles; preparation specified

Low-density lipoprotein particles; preparation specified. Species, exposure and limitations are retained in each linked claim.

11 recorded relationships. Experimental role, claim status and evidence remain attached to each record.

Read recorded mechanisms Open recursive mind map

How nutrients influence it

Every nutrient with a recorded effect on this component, credited to the nutrient that acted rather than the chapter that recorded it. Open a nutrient to see the findings and the conditions they were measured under.

How nutrients reach it in more than one step

Chains of two or more recorded steps that end here, grouped by the nutrient they start from. Each step is a separate finding, so a chain is a route a mechanism could take, not proof that it does.

Tracing routes…

What it does

Every recorded relationship this component is part of, grouped by its role. Plain wording comes first; the technical statement follows.

Recorded relationships

What it acts on

  1. LDL delivery produced the greatest lutein uptake in the tested ARPE-19 system.

    Low-density lipoprotein particles; preparation specified → Lutein source_derived_draftungraded
    Experimental context and source evidence
    evidence_span
    {"source_cache": "artifacts/lutein-research/27538825.abstract.txt", "locator": "Primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "1db014221931676349f15dc3c5138fba122417fb49fec5de481594c72b0596f3", "start_char": 0, "end_char": 1346, "text_sha256": "1db014221931676349f15dc3c5138fba122417fb49fec5de481594c72b0596f3"}
    experimental_model
    Carotenoid delivery using isolated human lipoproteins
    exposure
    Carotenoid-loaded LDL versus HDL
    limitations
    Cell delivery ranking is not identical to circulating carriage fractions or the WHAM-chicken phenotype.
    nutrient_topic
    Lutein research collection; topical membership is not evidence of a direct dietary effect. · Lutein
    organism
    Human ARPE-19 cells
    plain_language
    The best carrier in this cell assay was LDL.
    primary_references
    [lutein-p27538825] Mechanisms of selective delivery of xanthophylls to retinal pigment epithelial cells by human lipoproteins. (2016). https://pubmed.ncbi.nlm.nih.gov/27538825/ DOI: 10.1194/jlr.m070193
    tissue_or_cell_type
    Retinal pigment epithelial model

    Lutein: metabolism, signaling and nutrient connections (2026-09-17) · lines 632–643

    AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Carotenoid delivery using isolated human lipoproteins · source_derived_draft · unverified_draft

    ### lutein-ldl-rpe-delivery LDL delivery produced the greatest lutein uptake in the tested ARPE-19 system. Condition category: normal nutrient_topic: Lutein research collection; topical membership is not evidence of a direct dietary effect. plain_language: The best carrier in this cell assay was LDL. organism: Human ARPE-19 cells tissue_or_cell_type: Retinal pigment epithelial model experimental_model: Carotenoid delivery using isolated human lipoproteins limitations: Cell delivery ranking is not identical to circulating carriage fractions or the WHAM-chicken phenotype. exposure: Carotenoid-loaded LDL versus HDL evidence_span: {"source_cache": "artifacts/lutein-research/27538825.abstract.txt", "locator": "Primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "1db014221931676349f15dc3c5138fba122417fb49fec5de481594c72b0596f3", "start_char": 0, "end_char": 1346, "text_sha256": "1db014221931676349f15dc3c5138fba122417fb49fec5de481594c72b0596f3"} [lutein-p27538825] Mechanisms of selective delivery of xanthophylls to retinal pigment epithelial cells by human lipoproteins. (2016). https://pubmed.ncbi.nlm.nih.gov/27538825/ DOI: 10.1194/jlr.m070193
    Complete structured claim and evidence

What acts on it

  1. 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

  2. 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

Where it participates (unsigned role)

  1. Astaxanthin appeared in chylomicron/VLDL-rich, LDL and HDL plasma fractions after the meal; transport was not confined to one lipoprotein class.

    Astaxanthin → Human chylomicron/VLDL-rich plasma fraction source_derived_draftungraded
    Experimental context and source evidence
    evidence_access
    Primary abstract
    experimental_model
    Same three-person single-dose study.
    limitations
    Distribution is not proof of delivery to a particular organ or entry across the human blood-brain barrier.
    nutrient_topic
    Astaxanthin collection; molecular form, preparation, species, exposure and manipulation remain explicit. · Astaxanthin
    plain_language
    Several blood lipid carriers transported it.
    primary_references
    Plasma appearance and distribution of astaxanthin E/Z and R/S isomers in plasma lipoproteins of men after single dose administration of astaxanthin. · 2000 · https://pubmed.ncbi.nlm.nih.gov/11120445/ · DOI 10.1016/s0955-2863(00)00104-2

    Astaxanthin: transport, membrane chemistry, signaling and nutrient interactions (2026-09-19) · lines 78–84

    AI-assisted research curation; primary-abstract references and experimental limitations individually identified. Not publisher full text. · supports · Same three-person single-dose study. · source_derived_draft · unverified_draft

    ## astaxanthin-lipoprotein-distribution Several blood lipid carriers transported it. Astaxanthin appeared in chylomicron/VLDL-rich, LDL and HDL plasma fractions after the meal; transport was not confined to one lipoprotein class. Model: Same three-person single-dose study. Limitations: Distribution is not proof of delivery to a particular organ or entry across the human blood-brain barrier. Evidence access: Primary abstract Plasma appearance and distribution of astaxanthin E/Z and R/S isomers in plasma lipoproteins of men after single dose administration of astaxanthin. · 2000 · https://pubmed.ncbi.nlm.nih.gov/11120445/ · DOI 10.1016/s0955-2863(00)00104-2
    Complete structured claim and evidence

  2. 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

  3. 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

  4. 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

  5. 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

  6. 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

  7. 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

  8. 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

In the sources

Preserved passages that mention this component, quoted exactly. Open one to read it in context.

    This is a research prototype built from draft material. It is not medical advice, and its statements still await verification against the original studies.

    Evidence, AI assistance and curation standards