title: Thrombophilic mutations in Iranian patients with infertility and recurrent spontaneous abortion.
abstract: Factor V Leiden (FVL) G1691A, methylenetetrahydrofolate reductase (MTHFR) C677T, and factor II (FII) G20210A mutations are three important causes of thrombophilia, the condition that might be related to infertility and recurrent spontaneous abortion (RSA). In this study we evaluated the presence of these three mutations in 36 female patients with unexplained infertility, 65 female patients with unexplained RSA, and 62 healthy fertile women as control group. DNA was extracted from peripheral blood samples and PCR-RFLP was performed for the molecular diagnosis of each mutation. In addition, activated protein C resistance (APC-R) was also evaluated. The frequencies of FVL, MTHFR, and FII mutations (heterozygous and homozygous) in the control group were 0.0%, 38.7%, and 3.2%, respectively. The frequency of FVL mutation in patients with infertility (30.6%) or RSA (20.0%) was significantly higher than that of the control group. A significantly higher MTHFR mutation rate was also observed in patients with RSA (63.1%) as compared to controls. However, the mutation rate of MTHFR in patients with infertility (50.0%) was not statistically different from that in controls. No significant difference was observed in the frequencies of FII mutations between the patients and controls. Decreased levels of APC-R were observed in 25.0% of infertile patients and 18.9% of patients with RSA. In conclusion, our results show a skew towards higher mutation frequencies of FVL and MTHFR in patients that may necessitate detection of such mutations in these Iranian patients.
authors.affiliation: Reproductive Biology, Biotechnology and Infertility Research Center, Avesina Research Institute, Tehran, Iran.
authors.forename: Reza
authors.initials: R
authors.lastname: Behjati
authors.forename: Mohammad Hossein
authors.initials: MH
authors.lastname: Modarressi
authors.forename: Mahmood
authors.initials: M
authors.lastname: Jeddi-Tehrani
authors.forename: Pouneh
authors.initials: P
authors.lastname: Dokoohaki
authors.forename: Jamileh
authors.initials: J
authors.lastname: Ghasemi
authors.forename: Amir Hassan
authors.initials: AH
authors.lastname: Zarnani
authors.forename: Mahmoud
authors.initials: M
authors.lastname: Aarabi
authors.forename: Toktam
authors.initials: T
authors.lastname: Memariani
authors.forename: Marefat
authors.initials: M
authors.lastname: Ghaffari
authors.forename: Mehdi A
authors.initials: MA
authors.lastname: Akhondi
mesh_terms: D000026:Abortion, Habitual / Q000453:epidemiology / Q000235:genetics*; D015897:Comorbidity; D005165:Factor V / Q000235:genetics; D005260:Female; D005787:Gene Frequency; D005838:Genotype; D006579:Heterozygote; D006720:Homozygote; D006801:Humans; D007246:Infertility / Q000453:epidemiology / Q000235:genetics*; D007492:Iran / Q000453:epidemiology; D042965:Methylenetetrahydrofolate Reductase (NADPH2) / Q000235:genetics; D009154:Mutation; D016133:Polymerase Chain Reaction / Q000379:methods; D011516:Prothrombin / Q000235:genetics; D012680:Sensitivity and Specificity; D019851:Thrombophilia / Q000453:epidemiology / Q000235:genetics*
chemical_list: C095381:factor V Leiden; D005165:Factor V; D011516:Prothrombin; D042965:Methylenetetrahydrofolate Reductase (NADPH2)