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Published on: July 11, 2014
Formate: an essential metabolite, a biomarker, or more?
Simon G Lamarre1, Gregory Morrow, Luke Macmillan
1Université de Moncton, Biologie, 18 rue Antonine Maillet, Moncton, NB E1A 3E9, Canada. simon.lamarre@umoncton.ca
Clinical Chemistry and Laboratory Medicine
|December 18, 2012
Summary
Elevated formate levels in plasma and urine may indicate impaired one-carbon metabolism, linked to vitamin B12 and folate deficiencies. Understanding formate
Area of Science:
- Biochemistry
- Metabolic pathways
- Nutritional science
Background:
- Formate is an essential one-carbon (1C) metabolite in folate-dependent pathways.
- Plasma and urinary formate levels are elevated in vitamin B12 and folate deficiencies.
- Formate's role in one-carbon metabolism and its potential toxicity are not fully understood.
Purpose of the Study:
- To investigate the significance of formate as a biomarker for impaired one-carbon metabolism.
- To explore the metabolic pathways of formate production and removal.
- To assess the potential role of formate in pathologies associated with defective one-carbon metabolism.
Main Methods:
- Analysis of plasma and urinary formate concentrations.
- Review of known metabolic pathways for formate production and degradation.
- Correlation analysis between formate levels and vitamin B12/folate status.
Main Results:
- Elevated plasma and urinary formate concentrations observed in vitamin B12 and folate deficiencies.
- Formate can be produced from various substrates through both folate-dependent and independent pathways.
- Formate removal is primarily mediated by a folate-dependent pathway.
- Formate is a potentially toxic molecule.
Conclusions:
- Formate shows potential as a valuable biomarker for impaired one-carbon metabolism.
- Further research is needed to elucidate the complete metabolic pathways of formate.
- Formate may contribute to pathologies linked to defective one-carbon metabolism.
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