Blood coagulation & fibrinolysis : an international journal in haemostasis and thrombosis · 2011
Association of MTHFR A1298C polymorphism (but not of MTHFR C677T) with elevated homocysteine levels and placental vasculopathies.
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Klai Sarra, Fekih-Mrissa Najiba, El Housaini Sonia, Kaabechi Naziha, Nsiri Brahim, Rachdi Radhouen, Gritli Nasredine
Аннотация
Our aim in this study was to investigate the association between elevated homocysteine levels and the two MTHFR polymorphisms, C677T and A1298C, with several pregnancy complications such as recurrent pregnancy loss, preeclampsia, placental abruption and intrauterine growth retardation. In 203 women with different placental vasculopathies, we determined the MTHFR C677T and the A1298C prevalence and their relative association to elevated homocysteine levels. The mean plasma homocysteine level was significantly higher in the pathologic groups when compared with the control group. We identified the carriage of the MTHFR A1298C polymorphism as a significant risk factor for vascular-related pregnancy complications. Women with MTHFR A1298C polymorphism or elevated homocysteine levels have an increased risk of placental vasculopathies. The MTHFR A1298C mutation also had a positive impact on elevated homocysteine levels. The lack of association between the MTHFR C677T polymorphism and pregnancy morbidities needs further studies.