Plazminojen aktivatör inhibitor-1 (PAI-1) 4g/4g polimorfizminin gebelik kayıplarıyla ilişkisi

Malik Ejder Yıldırım, Şeker Dağ, Hande Küçük Kurtulgan, Savaş Karakuş
3.609 2.722


Aim. Plasminogen activator inhibitor type 1 (PAI-1) is a serine protease inhibitor. It inhibits tissue plasminogen activator (tPA) and urokinase (uPA), and consequently inhibits fibrinolysis. There is a common polymorphism known as 4G/5G in the promoter region of PAI-1 gene. PAI-1 4G/4G polymorphism may contribute pregnancy complications because of its role in thrombosis,. In this study, we aimed to evaluate the possible effect of PAI-1 4G/4G polymorphism to miscarriages. Method. The study group was selected between individuals residing in Sivas region. One hundred and seventy eight women (92 of them have miscarriage story and 86 control) were incorporated to study. After DNA isolation, mutation analysis was performed by StripAssay technique based on the reverse-hybridization principle. Data were analysed by SPSS 15.0 statistic program. Results. In control group, the number of 5G/5G polymorphisms was 22 (25.6%), the number of 4G/5G polymorphisms was 53 (61.6%) and the number of 4G/4G mutant cases was 11 (12.8%). In miscarriage group, the number of 5G/5G polymorphisms was 20 (21.7%), the number of 4G/5G polymorphisms was 49 (53.3%) and the number of 4G/4G mutant cases was 23 (25%). ODDS ratio was calculated for 4G/4G homozygot mutant cases. Conclusion. According to our datas, 5G/5G and 4G/5G polymorphism have not higher risk for miscarriage (p=0.546 and p=0.259 p>0.05). In our study, it was detected that the contribution of 4G/4G polymorphism to miscarriage is important. The women who have this polymorphism carry the risk of miscarriage higher 2.27 fold (p=0.038 p<0.05).


PAI-1, 4G/4G polymorphism, miscarriage

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