Component
Mouse pyruvate dehydrogenase complex
Mouse pyruvate dehydrogenase complex. Species, exposure and limitations are retained in each linked 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
PDH activity increased in assays using mitochondrial protein from mangiferin-treated C2C12 cells.
Experimental context and source evidence
- evidence_span
- {"source_cache": "artifacts/mangiferin-research/24848064.abstract.txt", "locator": "Primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "5f12809489e236c3dd9888aae3746eb22ff9cbea4271c9f60764bed3b5f9d251", "start_char": 0, "end_char": 1761, "text_sha256": "5f12809489e236c3dd9888aae3746eb22ff9cbea4271c9f60764bed3b5f9d251"}
- experimental_model
- High-fat-fed mice and differentiated C2C12 myotube experiments
- exposure
- Dietary mangiferin in mice; pharmacological cell exposures
- limitations
- Preclinical experiments; no proof of direct binding or correction of human vitamin deficiency.
- nutrient_topic
- Mangiferin research collection; topical membership is not evidence of a direct dietary effect. · Mangiferin
- organism
- Mus musculus
- plain_language
- An enzyme complex linking glycolysis to mitochondrial metabolism became more active.
- primary_references
- [mangiferin-p24848064] Mangiferin stimulates carbohydrate oxidation and protects against metabolic disorders induced by high-fat diets. (2014). https://pubmed.ncbi.nlm.nih.gov/24848064/ DOI: 10.2337/db14-0006
- tissue_or_cell_type
- Skeletal muscle and cultured myotubes
Mangiferin: metabolism, signaling and nutrient connections (2026-09-17) · lines 340–351
AI-assisted literature curation; primary study URLs and scope retained in the document and extraction. Not publisher full text. · supports · High-fat-fed mice and differentiated C2C12 myotube experiments · source_derived_draft · unverified_draft
### mangiferin-pdh-activity PDH activity increased in assays using mitochondrial protein from mangiferin-treated C2C12 cells. Condition category: normal nutrient_topic: Mangiferin research collection; topical membership is not evidence of a direct dietary effect. plain_language: An enzyme complex linking glycolysis to mitochondrial metabolism became more active. organism: Mus musculus tissue_or_cell_type: Skeletal muscle and cultured myotubes experimental_model: High-fat-fed mice and differentiated C2C12 myotube experiments limitations: Preclinical experiments; no proof of direct binding or correction of human vitamin deficiency. exposure: Dietary mangiferin in mice; pharmacological cell exposures evidence_span: {"source_cache": "artifacts/mangiferin-research/24848064.abstract.txt", "locator": "Primary indexed abstract; zero-based, end-exclusive Unicode character offsets", "file_sha256": "5f12809489e236c3dd9888aae3746eb22ff9cbea4271c9f60764bed3b5f9d251", "start_char": 0, "end_char": 1761, "text_sha256": "5f12809489e236c3dd9888aae3746eb22ff9cbea4271c9f60764bed3b5f9d251"} [mangiferin-p24848064] Mangiferin stimulates carbohydrate oxidation and protects against metabolic disorders induced by high-fat diets. (2014). https://pubmed.ncbi.nlm.nih.gov/24848064/ DOI: 10.2337/db14-0006
Complete structured claim and evidence
Where it participates (unsigned role)
Adding carnitine stimulated PDH activity 1.8-fold in control muscle mitochondria but did not stimulate it in Crat-null mitochondria.
Experimental context and source evidence
- evidence_access
- Primary full-text Figure 4
- experimental_model
- Isolated mouse muscle mitochondria; pyruvate-only respiratory context and direct PDH assay.
- limitations
- The effect is context-dependent; liver mitochondria also lacked the stimulation.
- nutrient_topic
- L-Carnitine collection; isomer, preparation, species, exposure and manipulation remain explicit. · L-Carnitine
- plain_language
- Carnitine needs the acetyl-transfer enzyme to relieve this brake on glucose oxidation.
- primary_references
- Muscle-specific deletion of carnitine acetyltransferase compromises glucose tolerance and metabolic flexibility. · 2012 · https://pubmed.ncbi.nlm.nih.gov/22560225/ · DOI 10.1016/j.cmet.2012.04.005
L-Carnitine: synthesis, acyl-group transport, fuel selection and nutrient interactions (2026-09-19) · lines 162–168
AI-assisted research curation; primary-abstract references and experimental limitations individually identified. Not publisher full text. · supports · Isolated mouse muscle mitochondria; pyruvate-only respiratory context and direct PDH assay. · source_derived_draft · unverified_draft
## l-carnitine-crat-pdh Carnitine needs the acetyl-transfer enzyme to relieve this brake on glucose oxidation. Adding carnitine stimulated PDH activity 1.8-fold in control muscle mitochondria but did not stimulate it in Crat-null mitochondria. Model: Isolated mouse muscle mitochondria; pyruvate-only respiratory context and direct PDH assay. Limitations: The effect is context-dependent; liver mitochondria also lacked the stimulation. Evidence access: Primary full-text Figure 4 Muscle-specific deletion of carnitine acetyltransferase compromises glucose tolerance and metabolic flexibility. · 2012 · https://pubmed.ncbi.nlm.nih.gov/22560225/ · DOI 10.1016/j.cmet.2012.04.005
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.