The predisposition to stroke might involve interactive effects among variants in several genes. We tested this hypothesis by examining the influence of polymorphisms in methylenetetrahydrofolate reductase (MTHFR) (C677T) and prothrombin (F2) (G20210A) as risk factors for stroke in Morocco. The polymerase chain reaction-restriction fragment length polymorphism methods were used to analyze DNA from 91 stroke patients and 182 controls. Association between the two polymorphisms and the risk of stroke was estimated by four-level models for the analysis of genetic interaction. Neither the MTHFR 677TT nor the F2 20210GA genotype showed any significant association compared to the MTHFR CC and F2 GG genotypes, respectively. An interactive effect between the MTHFR 677TT and F2 20210GA polymorphisms showed an increased risk of stroke. The odds ratios, in univariate and multivariate analysis, for the combined polymorphisms were 4.99 (95% CI, 1.75-14.2, P = 0.001) and 5.29 (95% CI, 1.63-17.1, P = 0.005), respectively.
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Inst Hlth Protect Women & Motherhood Canton Saraj, Sarajevo, Bosnia & HercegInst Hlth Protect Women & Motherhood Canton Saraj, Sarajevo, Bosnia & Herceg
Mahmutbegovic, Emir
Marjanovic, Damir
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Int Burch Univ, Sarajevo, Bosnia & Herceg
Inst Anthropol Res, Zagreb, CroatiaInst Hlth Protect Women & Motherhood Canton Saraj, Sarajevo, Bosnia & Herceg
Marjanovic, Damir
Medjedovic, Edin
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Univ Sarajevo, Clin Ctr, Gynecol Clin, Sarajevo, Bosnia & HercegInst Hlth Protect Women & Motherhood Canton Saraj, Sarajevo, Bosnia & Herceg
Medjedovic, Edin
Mahmutbegovic, Nevena
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Univ Sarajevo, Clin Ctr, Neurol Clin, Sarajevo, Bosnia & HercegInst Hlth Protect Women & Motherhood Canton Saraj, Sarajevo, Bosnia & Herceg
Mahmutbegovic, Nevena
Dogan, Serkan
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Int Burch Univ, Sarajevo, Bosnia & HercegInst Hlth Protect Women & Motherhood Canton Saraj, Sarajevo, Bosnia & Herceg
Dogan, Serkan
Valjevac, Amina
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Univ Sarajevo, Med Fac, Ctr Genet, Lab Mol Med, Sarajevo, Bosnia & HercegInst Hlth Protect Women & Motherhood Canton Saraj, Sarajevo, Bosnia & Herceg
Valjevac, Amina
Czerska, Ewa
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Reg Hosp, Cent Lab, Szczecin, PolandInst Hlth Protect Women & Motherhood Canton Saraj, Sarajevo, Bosnia & Herceg
Czerska, Ewa
Pawinska-Matecka, Anna
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Reg Hosp, Cent Lab, Szczecin, PolandInst Hlth Protect Women & Motherhood Canton Saraj, Sarajevo, Bosnia & Herceg
Pawinska-Matecka, Anna
Madlani, Agnieszka
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Pomeranian Med Univ, Dept Gerontobiol, Zolnierska 48, PL-71210 Szczecin, PolandInst Hlth Protect Women & Motherhood Canton Saraj, Sarajevo, Bosnia & Herceg
Madlani, Agnieszka
Adler, Grazyna
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Pomeranian Med Univ, Dept Gerontobiol, Zolnierska 48, PL-71210 Szczecin, PolandInst Hlth Protect Women & Motherhood Canton Saraj, Sarajevo, Bosnia & Herceg