Component
N1-Methylnicotinamide turnover
Measured metabolism of labeled N1-methylnicotinamide in the specified model.
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
After 24 hours of labeled N1-methylnicotinamide exposure, cancer-cell tracing did not detect conversion to other labeled metabolites.
Experimental context and source evidence
- cross_nutrient
- true
- evidence_span
- {"source_cache": "artifacts/niacin-consumption-sources/nnmt2013.txt", "locator": "Full text, normalized paragraph 33", "start_char": 18035, "end_char": 19275, "file_sha256": "7d88fd656ba772962185234a9bd021e40a9b83f9156db836f723eba06b68acca", "text_sha256": "efcd23e962441fae2b1fb3602db6a6d820ad2d17a511651b3950a2499df2fa02"}
- experimental_model
- Deuterated metabolite tracing and LC-MS
- exposure
- Deuterated N1-methylnicotinamide for 24 hours; labeled nicotinamide comparison
- limitations
- Engineered human cancer-cell culture, not healthy-human niacin repletion. SAM consumption does not establish systemic methyl depletion or a need for folate/B12 supplements. Non-detection is assay-limited and does not establish absolute irreversibility or whole-body clearance.
- nutrient_topic
- Niacin research collection; topical membership is not evidence of a direct dietary effect. · Niacin (vitamin B3)
- organism
- Human
- plain_language
- The methylated product was relatively stable during this cell-culture experiment.
- primary_references
- [b3-cons-nnmt2013] NNMT promotes epigenetic remodeling in cancer by creating a metabolic methylation sink. (2013). https://pubmed.ncbi.nlm.nih.gov/23455543/ DOI: 10.1038/nchembio.1204
- tissue_or_cell_type
- Human 769P renal carcinoma cells
Niacin: NAD metabolism, deficiency and nutrient interactions (2026-09-17) · lines 817–829
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · Deuterated metabolite tracing and LC-MS · source_derived_draft · unverified_draft
### b3-cons-mna-stability After 24 hours of labeled N1-methylnicotinamide exposure, cancer-cell tracing did not detect conversion to other labeled metabolites. Condition category: normal nutrient_topic: Niacin research collection; topical membership is not evidence of a direct dietary effect. plain_language: The methylated product was relatively stable during this cell-culture experiment. organism: Human tissue_or_cell_type: Human 769P renal carcinoma cells experimental_model: Deuterated metabolite tracing and LC-MS limitations: Engineered human cancer-cell culture, not healthy-human niacin repletion. SAM consumption does not establish systemic methyl depletion or a need for folate/B12 supplements. Non-detection is assay-limited and does not establish absolute irreversibility or whole-body clearance. exposure: Deuterated N1-methylnicotinamide for 24 hours; labeled nicotinamide comparison cross_nutrient: true evidence_span: {"source_cache": "artifacts/niacin-consumption-sources/nnmt2013.txt", "locator": "Full text, normalized paragraph 33", "start_char": 18035, "end_char": 19275, "file_sha256": "7d88fd656ba772962185234a9bd021e40a9b83f9156db836f723eba06b68acca", "text_sha256": "efcd23e962441fae2b1fb3602db6a6d820ad2d17a511651b3950a2499df2fa02"} [b3-cons-nnmt2013] NNMT promotes epigenetic remodeling in cancer by creating a metabolic methylation sink. (2013). https://pubmed.ncbi.nlm.nih.gov/23455543/ DOI: 10.1038/nchembio.1204
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.