Component

3-(4-Hydroxyphenyl)propionic acid / 4-HPPA

Species, preparation, dose and limitations are retained on 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.

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 acts on it

  1. One donor's fecal water produced 4-HPPA from naringenin, while downstream 4-HPPA degradation differed among 22 donors.

    Experimental context and source evidence
    dose
    Naringenin or 4-HPPA incubation
    duration
    Incubation study
    evidence_access
    Primary PubMed abstract and indexed metadata reviewed. Full-text method details not stated here remain unresolved.
    evidence_scope
    literature_reviewed; model-specific source-derived curation
    experimental_model
    Human fecal incubations from six and then 22 donors
    limitations
    Absence of measured 4-HPPA in five donors may reflect faster downstream degradation rather than absent formation.
    nutrient_topic
    Naringenin chapter; interacting nutrients, drugs, peptides and proteins retain their experimental settings. · Naringenin
    organism
    Human fecal incubations from six and then 22 donors
    plain_language
    One donor's fecal water produced 4-HPPA from naringenin, while downstream 4-HPPA degradation differed among 22 donors.
    primary_references
    Human intestinal microbial metabolism of naringin. (2015). https://pubmed.ncbi.nlm.nih.gov/24935725/ DOI: 10.1007/s13318-014-0193-x
    route
    Ex vivo
    tissue
    Microbial naringenin and 4-HPPA metabolism

    Naringenin: mechanism of action and interactions (2026-09-20) · lines 33–42

    Original AI-assisted source-specific curation with primary-study citations, model, exposure, route, duration, negative findings and limitations preserved. Not publisher full text. · supports · Human fecal incubations from six and then 22 donors · source_derived_draft · unverified_draft

    ## naringenin-microbial-hppa One donor's fecal water produced 4-HPPA from naringenin, while downstream 4-HPPA degradation differed among 22 donors. Model/species: Human fecal incubations from six and then 22 donors Tissue/system: Microbial naringenin and 4-HPPA metabolism Exposure: Naringenin or 4-HPPA incubation Route: Ex vivo Duration: Incubation study Limits: Absence of measured 4-HPPA in five donors may reflect faster downstream degradation rather than absent formation. Primary reference: Human intestinal microbial metabolism of naringin. (2015). https://pubmed.ncbi.nlm.nih.gov/24935725/ DOI: 10.1007/s13318-014-0193-x Access: Primary PubMed abstract and indexed metadata reviewed. Full-text method details not stated here remain unresolved.
    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