title: [The C677T mutation in the methylenetetrahydrofolate reductase gene and its association with deep vein thrombophilia in Shandong Hans].
abstract: OBJECTIVE
  To study the prevalence of methylenetetrahydrofolate reductase (MTHFR) C677T genotype and its association with deep vei n thrombophilia in Chinese.
  
  
  METHODS
  Polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) analysis was conducted to examine mutation with 63 deep vein thrombophilic patients and 80 health controls in Shandong Hans. The genotype frequencies were calculated by gene counting in patients and controls, and an analysis was made on the association of MTHFR C677T mutation with deep venous thrombosis in Shandong Hans.
  
  
  RESULTS
  In case-    controls, the frequencies of C/T heterozygote were 41.27% and 43.75%; whereas those of T/T homozygote were 52.38% and 36.25%. Significantly elevated mutation was observed in patients(Chi-square=6.372, P  0.01   OR(T/T)=4.552  95% confidence interval:1.440-14.390, Chi-square   =6.742  P=0.009).
  
  
  CONCLUSIONS
  The C677T mutation of methylenetetrahydrofolate reductase gene is a risk factor associated with deep vein thrombophilia in Shandong Hans.
authors.affiliation: Department of Medical Genetics, Medical School of Shandong University, Jinan, Shandong, 250012 P.R.China. guochenhong@yahoo.com
authors.forename: Chenhong
authors.initials: C
authors.lastname: Guo
authors.forename: Qiongxing
authors.initials: Q
authors.lastname: Guo
authors.forename: Yaoqin
authors.initials: Y
authors.lastname: Gong
authors.forename: Bingxi
authors.initials: B
authors.lastname: Chen
authors.forename: Qiji
authors.initials: Q
authors.lastname: Liu
authors.forename: Jiangxia
authors.initials: J
authors.lastname: Li
authors.forename: Guimin
authors.initials: G
authors.lastname: Gao
authors.forename: Haibin
authors.initials: H
authors.lastname: Zhou
mesh_terms: D002681:China; D004247:DNA / Q000235:genetics; D005787:Gene Frequency; D005838:Genotype; D006801:Humans; D042965:Methylenetetrahydrofolate Reductase (NADPH2); D016017:Odds Ratio; D000587:Oxidoreductases Acting on CH-NH Group Donors / Q000235:genetics*; D017354:Point Mutation; D012150:Polymorphism, Restriction Fragment Length; D019851:Thrombophilia / Q000201:enzymology / Q000235:genetics*; D020246:Venous Thrombosis / Q000201:enzymology / Q000235:genetics*
chemical_list: D004247:DNA; D000587:Oxidoreductases Acting on CH-NH Group Donors; D042965:Methylenetetrahydrofolate Reductase (NADPH2)