Component
Gut bacterial nitroreductases, species and isoform not resolved
Gut bacterial nitroreductases, species and isoform not resolved. Species, exposure and limitations are retained in each linked claim.
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 it acts on
Gut bacterial nitroreductases converted berberine to dihydroberberine.
Experimental context and source evidence
- evidence_span
- {"source_cache": "artifacts/berberine-research/26174047.abstract.txt", "locator": "Primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "17b12fa4d334225782db565c20fc34051522dafd77be442782aa82bd1ef34c9e", "start_char": 0, "end_char": 1403, "text_sha256": "17b12fa4d334225782db565c20fc34051522dafd77be442782aa82bd1ef34c9e"}
- experimental_model
- Bacterial enzyme, intestinal tissue, absorption and antibiotic-depletion experiments
- exposure
- Oral berberine, dihydroberberine and antibiotic pretreatment
- limitations
- Animal absorption difference is not a human bioavailability multiplier. Nitroreductases are unresolved bacterial enzyme families; no nitrogen-removal or vitamin-depletion mechanism inferred.
- nutrient_topic
- Berberine research collection; topical membership is not evidence of a direct dietary effect. · Berberine
- organism
- Gut bacteria and rodents including KK-Ay mice
- plain_language
- Gut microbes can change the chemical form before it is absorbed.
- primary_references
- [berberine-p26174047] Transforming berberine into its intestine-absorbable form by the gut microbiota. (2015). https://pubmed.ncbi.nlm.nih.gov/26174047/ DOI: 10.1038/srep12155
- tissue_or_cell_type
- Gut lumen, intestinal tissue and circulation
Berberine: metabolism, nutrient connections and drug interactions (2026-09-17) · lines 142–153
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Bacterial enzyme, intestinal tissue, absorption and antibiotic-depletion experiments · source_derived_draft · unverified_draft
### berberine-microbial-reduction Gut bacterial nitroreductases converted berberine to dihydroberberine. Condition category: normal nutrient_topic: Berberine research collection; topical membership is not evidence of a direct dietary effect. plain_language: Gut microbes can change the chemical form before it is absorbed. organism: Gut bacteria and rodents including KK-Ay mice tissue_or_cell_type: Gut lumen, intestinal tissue and circulation experimental_model: Bacterial enzyme, intestinal tissue, absorption and antibiotic-depletion experiments limitations: Animal absorption difference is not a human bioavailability multiplier. Nitroreductases are unresolved bacterial enzyme families; no nitrogen-removal or vitamin-depletion mechanism inferred. exposure: Oral berberine, dihydroberberine and antibiotic pretreatment evidence_span: {"source_cache": "artifacts/berberine-research/26174047.abstract.txt", "locator": "Primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "17b12fa4d334225782db565c20fc34051522dafd77be442782aa82bd1ef34c9e", "start_char": 0, "end_char": 1403, "text_sha256": "17b12fa4d334225782db565c20fc34051522dafd77be442782aa82bd1ef34c9e"} [berberine-p26174047] Transforming berberine into its intestine-absorbable form by the gut microbiota. (2015). https://pubmed.ncbi.nlm.nih.gov/26174047/ DOI: 10.1038/srep12155
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.