Homocysteine metabolism

J Selhub - Annual review of nutrition, 1999 - annualreviews.org
▪ Abstract Homocysteine is a sulfur amino acid whose metabolism stands at the intersection
of two pathways: remethylation to methionine, which requires folate and vitamin B12 (or …

5, 10-Methylenetetrahydrofolate reductase gene variants and congenital anomalies: a HuGE review

LD Botto, Q Yang - American journal of epidemiology, 2000 - academic.oup.com
Abstract The enzyme 5, 10-methylenetetrahydrofolate reductase (MTHFR) is involved in
folate metabolism. The MTHFR gene is located on chromosome 1 (1p36. 3), and two …

MTHFR 677C→ T polymorphism and risk of coronary heart disease: a meta-analysis

M Klerk, P Verhoef, R Clarke, HJ Blom, FJ Kok… - Jama, 2002 - jamanetwork.com
ContextIn observational studies, individuals with elevated levels of plasma homocysteine
tend to have moderately increased risk of coronary heart disease (CHD). The MTHFR …

A common mutation in the 5, 10-methylenetetrahydrofolate reductase gene affects genomic DNA methylation through an interaction with folate status

S Friso, SW Choi, D Girelli, JB Mason… - Proceedings of the …, 2002 - National Acad Sciences
DNA methylation, an essential epigenetic feature of DNA that modulates gene expression
and genomic integrity, is catalyzed by methyltransferases that use the universal methyl …

[HTML][HTML] The controversy over homocysteine and cardiovascular risk

PM Ueland, H Refsum, SAA Beresford… - The American journal of …, 2000 - Elsevier
Elevated plasma total homocysteine (tHcy) is a risk factor for occlusive cardiovascular
disease (CVD). This concept is based on the observations of premature vascular disease in …

[HTML][HTML] Homocysteine and cardiovascular disease: cause or effect?

L Brattström, DEL Wilcken - The American journal of clinical nutrition, 2000 - Elsevier
Both markedly and mildly elevated circulating homocysteine concentrations are associated
with increased risk of vascular occlusion. Here we review possible mechanisms that mediate …

Polymorphisms in genes involved in folate metabolism and colorectal neoplasia: a HuGE review

L Sharp, J Little - American journal of epidemiology, 2004 - academic.oup.com
Epidemiologic and mechanistic evidence suggests that folate is involved in colorectal
neoplasia. Some polymorphic genes involved in folate metabolism …

Association between factor V Leiden, prothrombin G20210A, and methylenetetrahydrofolate reductase C677T mutations and events of the arterial circulatory system: a …

RJ Kim, RC Becker - American heart journal, 2003 - Elsevier
BACKGROUND: The association between the inherited gene mutations of factor V,
prothrombin, and homocysteine metabolism and venous thromboembolic events is accepted …

Genomic DNA hypomethylation, a characteristic of most cancers, is present in peripheral leukocytes of individuals who are homozygous for the C677T polymorphism …

LL Stern, JB Mason, J Selhub, SW Choi - Cancer Epidemiology Biomarkers & …, 2000 - AACR
DNA methylation is an epigenetic feature of DNA that influences cellular development and
function, and aberrations of DNA methylation are a candidate mechanism for the …

[HTML][HTML] Gene-nutrient interactions and DNA methylation

S Friso, SW Choi - The Journal of nutrition, 2002 - Elsevier
Many micronutrients and vitamins are critical for DNA synthesis/repair and maintenance of
DNA methylation patterns. Folate has been most extensively investigated in this regard …