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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2001-6-29
pubmed:abstractText
The effect of the combined 5,10-methylenetetrahydrofolate reductase (MTHFR) 677C-->T and 1298A-->C genotype on total homocysteine (tHcy), folate, and vitamin B(12) plasma levels was investigated in 983 subjects, including 415 hemodialysis patients, 179 peritoneal dialysis patients, and 389 healthy individuals. Mean tHcy plasma concentrations were 27.2 +/- 15.8 micromol/L in hemodialysis patients, 25.4 +/- 19.1 micromol/L in peritoneal dialysis patients, and 8.9 +/- 3.5 micromol/L in healthy individuals. Hyperhomocysteinemia (tHcy > 15 micromol/L) was detected in 81.6% of patients and 2.6% of controls. Multiple stepwise regression analysis showed that the MTHFR 677C-->T/1298A-->C genotype (CC/AA, CC/AC, CC/CC, CT/AA, CT/AC, TT/AA), vitamin use, age, folate and vitamin B(12) plasma level were significant predictors of tHcy plasma levels. Analysis of variance showed that this effect of MTHFR genotypes on tHcy level was caused by significantly greater tHcy levels in 677TT/1298AA hemodialysis and peritoneal dialysis patients versus other genotypes. Compound heterozygous controls (677CT/1298AC genotype) had significantly greater tHcy levels compared with 677CC/1298AA controls. There was no major effect of MTHFR polymorphisms on folate and vitamin B(12) plasma concentrations. This study shows that the MTHFR 677TT/1298AA genotype, but not the 677CT/1298AC genotype, is a significant predictor of tHcy plasma levels in dialysis patients.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
1523-6838
pubmed:author
pubmed:issnType
Electronic
pubmed:volume
38
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
77-84
pubmed:dateRevised
2005-11-17
pubmed:meshHeading
pubmed-meshheading:11431185-Adult, pubmed-meshheading:11431185-Aged, pubmed-meshheading:11431185-Dialysis, pubmed-meshheading:11431185-Female, pubmed-meshheading:11431185-Folic Acid, pubmed-meshheading:11431185-Gene Frequency, pubmed-meshheading:11431185-Genotype, pubmed-meshheading:11431185-Homocysteine, pubmed-meshheading:11431185-Humans, pubmed-meshheading:11431185-Kidney Failure, Chronic, pubmed-meshheading:11431185-Linear Models, pubmed-meshheading:11431185-Male, pubmed-meshheading:11431185-Methylenetetrahydrofolate Reductase (NADPH2), pubmed-meshheading:11431185-Middle Aged, pubmed-meshheading:11431185-Oxidoreductases Acting on CH-NH Group Donors, pubmed-meshheading:11431185-Peritoneal Dialysis, pubmed-meshheading:11431185-Polymorphism, Genetic, pubmed-meshheading:11431185-Renal Dialysis, pubmed-meshheading:11431185-Vitamin B 12
pubmed:year
2001
pubmed:articleTitle
Association of two MTHFR polymorphisms with total homocysteine plasma levels in dialysis patients.
pubmed:affiliation
Department of Medicine III, Division of Nephrology and Dialysis, University of Vienna, Austria. manuela.foedinger@akh-wien.ac.at
pubmed:publicationType
Journal Article