Abstract
Preeclampsia (PE) is a serious condition characterized by hypertension and proteinuria after 20 weeks of gestation. The exact cause of PE is unknown but may involve abnormalities in the renin-angiotensin-aldosterone system (RAAS) and endothelial nitric oxide synthase (eNOS). Genetic variations in angiotensinogen (AGT), angiotensin-converting enzyme (ACE), and eNOS genes have been associated with PE. This study aimed to investigate the potential of vasoactive-related gene polymorphisms as indicators of susceptibility to preeclampsia in Taiwanese women. A total of 109 women with severe PE and 150 controls from the Taiwanese population were genotyped for specific vasoactive gene polymorphisms, including M235T and T174M polymorphisms of AGT gene, insertion/deletion (I/D) polymorphism in ACE gene, and G894T (Glu298Asp) polymorphism and 27bp variable number of tandem repeats (VNTR 3/4/5) polymorphism of the eNOS gene. The association between genotype and disease was assessed using Chi-square tests. The study found no significant differences in the M235T and T174M polymorphisms of AGT gene between the PE and control groups. However, haplotype frequencies for the M235T and T174M polymorphisms exhibited a significant association with PE. The genotype distributions of the I/D polymorphism of ACE gene showed a significant difference between PE and control groups. Additionally, no significant differences were detected in the polymorphisms of the eNOS gene between PE and control groups. The findings of this study suggest that the AGT M235T-T174M haplotype and ACE insertion/deletion polymorphism may contribute to the development of preeclampsia and could serve as susceptibility markers for preeclampsia in Taiwanese women.
Published Version
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