title: The early-onset preeclampsia is associated with MTHFR and FVL polymorphisms.
abstract: OBJECTIVE
  The aim of this study was to examine the association of factor V Leiden, prothrombin and methylenetetrahydrofolate reductase (MTHFR) polymorphisms and preeclampsia (PE) in Southeast of Iran.
  
  
  METHODS
  This case-control study was performed on 192 preeclamptic and 196 normotensive pregnant women. Single nucleotide polymorphisms were genotyped using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) and Tetra ARMS methods.
  
  
  RESULTS
  No significant differences were observed in distribution of MTHFR C677T and FVL polymorphisms between two groups. There was a significant difference in frequency of 1298AC genotype in PE pregnant women compared to controls (P = 0.03). No 20210A allele of prothrombin gene was observed in this population. The analysis of MTHFR and factor V Leiden polymorphisms between early-onset PE (EOPE) and late-onset PE (LOPE) showed significant differences in MTHFR A1298C polymorphism (AC and CC vs AA, P = 0.012 and P = 0.006, respectively) and G1691A polymorphism of FVL(GA vs GG, P = 0.03). Moreover, the analysis of three SNPs between EOPE and controls showed significant differences in MTHFR C677T (CT + TT vs CC, P = 0.035) and MTHFR A1298C (AC and CC vs AA, P = 0.001 and P = 0.006, respectively) polymorphisms. The synergic effect of MTHFR A1298C and C677T polymorphisms showed increased risk of EOPE.
  
  
  CONCLUSIONS
  MTHFR A1298C polymorphism was associated with PE. Although MTHFR C677T and FVL polymorphisms did not differ between PE patients and controls, significant differences in MTHFR A1298C, C677T and FVL polymorphisms between EOPE and LOPE/controls were observed. The synergic effect of MTHFR variants could increase PE and EOPE risk.
authors.affiliation: Cellular and Molecular Research Center, Zahedan University of Medical Sciences, Zahedan, Iran.
authors.forename: Saeedeh
authors.initials: S
authors.lastname: Salimi
authors.forename: Mohsen
authors.initials: M
authors.lastname: Saravani
authors.forename: Minoo
authors.initials: M
authors.lastname: Yaghmaei
authors.forename: Zeinab
authors.initials: Z
authors.lastname: Fazlali
authors.forename: Mojgan
authors.initials: M
authors.lastname: Mokhtari
authors.forename: Anoosh
authors.initials: A
authors.lastname: Naghavi
authors.forename: Farzaneh
authors.initials: F
authors.lastname: Farajian-Mashhadi
mesh_terms: D000328:Adult; D000483:Alleles; D016022:Case-Control Studies; D005165:Factor V / Q000235:genetics*; D005260:Female; D005838:Genotype; D006239:Haplotypes; D006801:Humans; D007492:Iran; D042965:Methylenetetrahydrofolate Reductase (NADPH2) / Q000235:genetics*; D016133:Polymerase Chain Reaction; D011110:Polymorphism, Genetic; D012150:Polymorphism, Restriction Fragment Length; D020641:Polymorphism, Single Nucleotide; D011225:Pre-Eclampsia / Q000097:blood / Q000235:genetics*; D011247:Pregnancy; D011516:Prothrombin / Q000235:genetics; D019851:Thrombophilia; D055815:Young Adult
chemical_list: C095381:factor V Leiden; D005165:Factor V; D011516:Prothrombin; D042965:Methylenetetrahydrofolate Reductase (NADPH2)