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MTHFR C677T and eNOS G894T variants in preeclamptic women: Contribution to lipid peroxidation and oxidative stress.

Abstract：

OBJECTIVES:We aimed to investigate the association between methylenetetrahydrofolate reductase (MTHFR) C677T and endothelial nitric oxide synthase (eNOS) G894T polymorphisms with lipid peroxidation, total antioxidant capacity (TAC) and the risk of preeclampsia in preeclamptic women. DESIGN AND METHODS:We screened a sample of 198 unrelated women with mild and severe forms of preeclampsia and 101 unrelated women with normal pregnancy with the eNOS and MTHFR variants using PCR-RFLP method. Also, the serum malondialdehyde (MDA) and TAC levels were determined using HPLC and commercial kits, respectively. RESULTS:The frequency of combined genotypes of MTHFR CT and TT (CT+TT) and T allele tended to be higher in severe preeclamptic women compared to controls. There was no significant difference for eNOS G894T genotype and allele frequencies between patients and controls. A significantly higher level of triglycerides was observed in the presence of combined genotypes of MTHFR CT and TT and also eNOS GT and TT (GT+TT) in preeclamptic women compared to controls with the same genotype. Also, the presence of MTHFR TT genotype in severe preeclamptic women was significantly associated with the increased serum MDA level compared to CC genotype. In severe preeclamptic women the presence of CT and combined genotypes of CT and TT was significantly associated with the decreased TAC level compared to CC genotype. Also, a higher MDA level was observed in mild preeclamptic women with eNOS TT genotype compared to those with GG genotype but the difference was not significant. CONCLUSION:The present study indicates that MTHFR C677T polymorphism through affecting on TG level, lipid peroxidation and oxidative stress might be involved in the pathogenesis of severe preeclampsia.

journal_name

Clin Biochem

journal_title

Clinical biochemistry

authors

Rahimi Z,Malek-Khosravi S,Rahimi Z,Jalilvand F,Parsian A

doi

10.1016/j.clinbiochem.2012.10.020

subject

Has Abstract

pub_date

2013-01-01 00:00:00

pages

143-7

issue

1-2

eissn

0009-9120

issn

1873-2933

pii

S0009-9120(12)00575-9

journal_volume

46

pub_type

杂志文章

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