Component
Rat cucurbitacin B tissue distribution
Context-specific entity; species, compartment and exposure are stated on each 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 acts on it
The rat study estimated intravenous distribution volume near 51.65 L/kg ; lung and spleen tissue/plasma ratios were about 60 at 1 hour and about 240 at 2 hours, while liver, stomach and small intestine ratios were only 4–14 at 1 hour.
Experimental context and source evidence
- availability_state
- biomarker_context Imported condition classification; unverified.
- evidence_access
- Primary full text PMC6609384
- experimental_model
- Male Wistar rat intravenous pharmacokinetics and tissue sampling; brain and heart amounts were below quantification.
- limitations
- Total tissue ratios do not establish free intracellular concentration or a human therapeutic window.
- nutrient_topic
- Cucurbitacins collection; species, compartment, exposure, co-substrates and manipulation remain explicit. · Cucurbitacins
- plain_language
- Measured tissue distribution differed substantially from plasma.
- primary_references
- Pharmacokinetics of cucurbitacin B from Trichosanthes cucumerina L. in rats. · 2019 · https://pubmed.ncbi.nlm.nih.gov/31272429/ · DOI 10.1186/s12906-019-2568-7
- trigger_kind
- biomarker_context Imported condition classification; unverified.
Cucurbitacins: thiol chemistry, cytoskeleton, metabolic dependencies and signaling (2026-09-20) · lines 356–362
AI-assisted research curation; primary references, access levels and experimental limitations individually identified. Not publisher full text. · supports · Male Wistar rat intravenous pharmacokinetics and tissue sampling; brain and heart amounts were below quantification. · source_derived_draft · unverified_draft
## cucurbitacin-b-rat-distribution Measured tissue distribution differed substantially from plasma. The rat study estimated intravenous distribution volume near 51.65 L/kg ; lung and spleen tissue/plasma ratios were about 60 at 1 hour and about 240 at 2 hours, while liver, stomach and small intestine ratios were only 4–14 at 1 hour. Model: Male Wistar rat intravenous pharmacokinetics and tissue sampling; brain and heart amounts were below quantification. Limitations: Total tissue ratios do not establish free intracellular concentration or a human therapeutic window. Evidence access: Primary full text PMC6609384 Pharmacokinetics of cucurbitacin B from Trichosanthes cucumerina L. in rats. · 2019 · https://pubmed.ncbi.nlm.nih.gov/31272429/ · DOI 10.1186/s12906-019-2568-7
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.