Component
NADH oxidation in the vanadium chemical assay
Context-specific entity; species, compartment and exposure are stated on each claim.
2 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
Ascorbate initiated NADH oxidation at lower concentrations but inhibited it at higher concentrations in the same chemical system.
Experimental context and source evidence
- evidence_access
- Primary abstract
- experimental_model
- Cell-free concentration-response experiments.
- limitations
- Not an established supplement dose-response in humans.
- nutrient_topic
- Vanadium collection; molecular form, preparation, species, exposure and manipulation remain explicit. · Vanadium
- plain_language
- The direction of an antioxidant’s effect can depend on concentration.
- primary_references
- Vanadate-mediated oxidation of NADH: description of an in vitro system requiring ascorbate and phosphate. · 1989 · https://pubmed.ncbi.nlm.nih.gov/2735768/ · DOI 10.1016/0003-9861(89)90196-3
Vanadium: speciation, phosphate-sensitive enzymes and cross-nutrient mechanisms (2026-09-19) · lines 134–140
AI-assisted research curation; primary references, access levels and experimental limitations individually identified. Not publisher full text. · supports · Cell-free concentration-response experiments. · source_derived_draft · unverified_draft
## vanadium-ascorbate-concentration The direction of an antioxidant’s effect can depend on concentration. Ascorbate initiated NADH oxidation at lower concentrations but inhibited it at higher concentrations in the same chemical system. Model: Cell-free concentration-response experiments. Limitations: Not an established supplement dose-response in humans. Evidence access: Primary abstract Vanadate-mediated oxidation of NADH: description of an in vitro system requiring ascorbate and phosphate. · 1989 · https://pubmed.ncbi.nlm.nih.gov/2735768/ · DOI 10.1016/0003-9861(89)90196-3
Complete structured claim and evidenceSuperoxide dismutase inhibited NADH oxidation in the vanadate/ascorbate/phosphate system, whereas catalase and ethanol did not.
Experimental context and source evidence
- evidence_access
- Primary abstract
- experimental_model
- Cell-free scavenger comparison.
- limitations
- Does not imply catalase is irrelevant to all vanadium toxicity.
- nutrient_topic
- Vanadium collection; molecular form, preparation, species, exposure and manipulation remain explicit. · Vanadium
- plain_language
- The scavenger comparison points to a superoxide-dependent step in this particular reaction.
- primary_references
- Vanadate-mediated oxidation of NADH: description of an in vitro system requiring ascorbate and phosphate. · 1989 · https://pubmed.ncbi.nlm.nih.gov/2735768/ · DOI 10.1016/0003-9861(89)90196-3
Vanadium: speciation, phosphate-sensitive enzymes and cross-nutrient mechanisms (2026-09-19) · lines 126–132
AI-assisted research curation; primary references, access levels and experimental limitations individually identified. Not publisher full text. · supports · Cell-free scavenger comparison. · source_derived_draft · unverified_draft
## vanadium-sod-redox-rescue The scavenger comparison points to a superoxide-dependent step in this particular reaction. Superoxide dismutase inhibited NADH oxidation in the vanadate/ascorbate/phosphate system, whereas catalase and ethanol did not. Model: Cell-free scavenger comparison. Limitations: Does not imply catalase is irrelevant to all vanadium toxicity. Evidence access: Primary abstract Vanadate-mediated oxidation of NADH: description of an in vitro system requiring ascorbate and phosphate. · 1989 · https://pubmed.ncbi.nlm.nih.gov/2735768/ · DOI 10.1016/0003-9861(89)90196-3
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.