Component
Human peripheral blood mononuclear cell biotin efflux
Human peripheral blood mononuclear cell biotin efflux. Experimental context and limitations are specified in the linked claims.
1 recorded relationships. Experimental role, claim status and evidence remain attached to each record.
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.
Other things that act on it
Enzymes, hormones, genes, and other components with a recorded effect. These are not nutrients, so they do not count toward the arrows above. Each finding names the chapter that recorded it.
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.
What acts on it
Extracellular pantothenate did not significantly change biotin efflux from radiolabeled-biotin-loaded human peripheral blood mononuclear cells.
Experimental context and source evidence
- cross_nutrient
- true
- experimental_model
- Isolated human peripheral blood mononuclear cells; radiolabeled biotin uptake and efflux assays
- exposure
- [3H]biotin-loaded PBMC challenged with extracellular pantothenate; efflux-specific concentration not supplied in the abstract.
- limitations
- P greater than 0.05 is a null result in this assay, not proof of no effect under every condition. The experiment does not identify a general B5 export transporter or SMVT-mediated exchange mechanism.
- nutrient_topic
- Pantothenic acid (vitamin B5) research collection; topical membership is not evidence of a direct dietary effect. · Pantothenate (vitamin B5)
- organism
- Homo sapiens
- plain_language
- Adding B5 outside these blood cells did not drive biotin back out.
- primary_references
- [b5-trans-pbmc1999] Human peripheral blood mononuclear cells: ; Inhibition of biotin transport by reversible competition with pantothenic acid is quantitatively minor. (1999). https://pubmed.ncbi.nlm.nih.gov/15539319/ DOI: 10.1016/s0955-2863(99)00024-8
- tissue_or_cell_type
- Isolated peripheral blood mononuclear cells
Pantothenic acid (vitamin B5): coenzyme A, deficiency and nutrient interactions (2026-09-17) · lines 470–481
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Isolated human peripheral blood mononuclear cells; radiolabeled biotin uptake and efflux assays · source_derived_draft · unverified_draft
### b5-trans-pbmc-efflux-null Extracellular pantothenate did not significantly change biotin efflux from radiolabeled-biotin-loaded human peripheral blood mononuclear cells. Condition category: normal nutrient_topic: Pantothenic acid (vitamin B5) research collection; topical membership is not evidence of a direct dietary effect. plain_language: Adding B5 outside these blood cells did not drive biotin back out. organism: Homo sapiens tissue_or_cell_type: Isolated peripheral blood mononuclear cells experimental_model: Isolated human peripheral blood mononuclear cells; radiolabeled biotin uptake and efflux assays limitations: P greater than 0.05 is a null result in this assay, not proof of no effect under every condition. The experiment does not identify a general B5 export transporter or SMVT-mediated exchange mechanism. exposure: [3H]biotin-loaded PBMC challenged with extracellular pantothenate; efflux-specific concentration not supplied in the abstract. cross_nutrient: true [b5-trans-pbmc1999] Human peripheral blood mononuclear cells: ; Inhibition of biotin transport by reversible competition with pantothenic acid is quantitatively minor. (1999). https://pubmed.ncbi.nlm.nih.gov/15539319/ DOI: 10.1016/s0955-2863(99)00024-8
Complete structured claim and evidence
The events it takes part in
A mechanism often involves more than two components. These are the full events, with every participant and its role.
Situations it appears in
Low-supply and faulty-machinery situations recorded in the chapters where this component plays a part.
In the sources
Preserved passages that mention this component, quoted exactly. Open one to read it in context.
Open hypotheses
Proposed ideas that involve this component. They are labeled as hypotheses and do not change any recorded statement.
This is a research prototype built from draft material. It is not medical advice, and its statements still await verification against the original studies.