Bilirubin: molecular mechanisms & dependencies

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.

Human evidence only

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

Where it participates (unsigned role)

Berberine displaced bilirubin from protein binding in vitro.
Berberine → Bilirubin binding to albumin source_derived_draftungraded
Experimental context and source evidence
evidence_span
{"source_cache": "artifacts/berberine-research/8513024.abstract.txt", "locator": "Primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "6ff3832e3aad7806081c5b3bd378eabf1595da6dd2a1f3bef664bb69c9d11334", "start_char": 0, "end_char": 1066, "text_sha256": "6ff3832e3aad7806081c5b3bd378eabf1595da6dd2a1f3bef664bb69c9d11334"}
experimental_model
Bilirubin-binding assay and adult-rat exposure
exposure
Binding displacement assay; intraperitoneal berberine for one week in rats
limitations
No infant risk incidence was measured. Adult-rat parenteral exposure is not equivalent to oral adult supplementation; protein displacement is a biologically relevant concern for neonatal jaundice.
nutrient_topic
Berberine research collection; topical membership is not evidence of a direct dietary effect. · Berberine
organism
In-vitro protein binding and adult rats
plain_language
Competition for a blood binding protein can change the unbound fraction.
primary_references
[berberine-p8513024] Displacement of bilirubin from albumin by berberine. (1993). https://pubmed.ncbi.nlm.nih.gov/8513024/ DOI: 10.1159/000243932
tissue_or_cell_type
Albumin-bound versus unbound bilirubin
Berberine: metabolism, nutrient connections and drug interactions (2026-09-17) · lines 961–972
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Bilirubin-binding assay and adult-rat exposure · source_derived_draft · unverified_draft
### berberine-bilirubin-displacement Berberine displaced bilirubin from protein binding in vitro. Condition category: normal nutrient_topic: Berberine research collection; topical membership is not evidence of a direct dietary effect. plain_language: Competition for a blood binding protein can change the unbound fraction. organism: In-vitro protein binding and adult rats tissue_or_cell_type: Albumin-bound versus unbound bilirubin experimental_model: Bilirubin-binding assay and adult-rat exposure limitations: No infant risk incidence was measured. Adult-rat parenteral exposure is not equivalent to oral adult supplementation; protein displacement is a biologically relevant concern for neonatal jaundice. exposure: Binding displacement assay; intraperitoneal berberine for one week in rats evidence_span: {"source_cache": "artifacts/berberine-research/8513024.abstract.txt", "locator": "Primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "6ff3832e3aad7806081c5b3bd378eabf1595da6dd2a1f3bef664bb69c9d11334", "start_char": 0, "end_char": 1066, "text_sha256": "6ff3832e3aad7806081c5b3bd378eabf1595da6dd2a1f3bef664bb69c9d11334"} [berberine-p8513024] Displacement of bilirubin from albumin by berberine. (1993). https://pubmed.ncbi.nlm.nih.gov/8513024/ DOI: 10.1159/000243932
Complete structured claim and evidence
Repeated intraperitoneal berberine increased unbound bilirubin concentrations in adult rats.
Berberine → Unbound bilirubin concentration source_derived_draftungraded
Experimental context and source evidence
evidence_span
{"source_cache": "artifacts/berberine-research/8513024.abstract.txt", "locator": "Primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "6ff3832e3aad7806081c5b3bd378eabf1595da6dd2a1f3bef664bb69c9d11334", "start_char": 0, "end_char": 1066, "text_sha256": "6ff3832e3aad7806081c5b3bd378eabf1595da6dd2a1f3bef664bb69c9d11334"}
experimental_model
Bilirubin-binding assay and adult-rat exposure
exposure
Binding displacement assay; intraperitoneal berberine for one week in rats
limitations
No infant risk incidence was measured. Adult-rat parenteral exposure is not equivalent to oral adult supplementation; protein displacement is a biologically relevant concern for neonatal jaundice.
nutrient_topic
Berberine research collection; topical membership is not evidence of a direct dietary effect. · Berberine
organism
In-vitro protein binding and adult rats
plain_language
The laboratory binding concern also appeared in an animal exposure model.
primary_references
[berberine-p8513024] Displacement of bilirubin from albumin by berberine. (1993). https://pubmed.ncbi.nlm.nih.gov/8513024/ DOI: 10.1159/000243932
tissue_or_cell_type
Albumin-bound versus unbound bilirubin
Berberine: metabolism, nutrient connections and drug interactions (2026-09-17) · lines 974–985
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Bilirubin-binding assay and adult-rat exposure · source_derived_draft · unverified_draft
### berberine-bilirubin-unbound-rat Repeated intraperitoneal berberine increased unbound bilirubin concentrations in adult rats. Condition category: normal nutrient_topic: Berberine research collection; topical membership is not evidence of a direct dietary effect. plain_language: The laboratory binding concern also appeared in an animal exposure model. organism: In-vitro protein binding and adult rats tissue_or_cell_type: Albumin-bound versus unbound bilirubin experimental_model: Bilirubin-binding assay and adult-rat exposure limitations: No infant risk incidence was measured. Adult-rat parenteral exposure is not equivalent to oral adult supplementation; protein displacement is a biologically relevant concern for neonatal jaundice. exposure: Binding displacement assay; intraperitoneal berberine for one week in rats evidence_span: {"source_cache": "artifacts/berberine-research/8513024.abstract.txt", "locator": "Primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "6ff3832e3aad7806081c5b3bd378eabf1595da6dd2a1f3bef664bb69c9d11334", "start_char": 0, "end_char": 1066, "text_sha256": "6ff3832e3aad7806081c5b3bd378eabf1595da6dd2a1f3bef664bb69c9d11334"} [berberine-p8513024] Displacement of bilirubin from albumin by berberine. (1993). https://pubmed.ncbi.nlm.nih.gov/8513024/ DOI: 10.1159/000243932
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.

Bilirubin