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Zitouni, Hedia; Chayeb, Vera; Ben Ali Gannoun, Marwa; Raguema, Nozha; Bendhaher, Sameh; Zouari, Ines; Ben Abdennebi, Hassen; Guibourdenche, Jean; Mahjoub, Touhami; Gaddour, Kamel; Almawi, Wassim Y.
Journal of reproductive immunology, June 2023, 2023-06-00, 20230601, Volume: 157Journal Article
We investigated the association of angiotensin-converting enzyme (ACE) insertion/deletion (I/D) polymorphism with preeclampsia (PE) in Tunisian women. ACE I/D genotyping was done by PCR in 342 pregnant women with PE and 289 healthy pregnant women. The association between ACE I/D and PE and associated features were also evaluated. Decreased active renin concentration, plasma aldosterone concentration, and placental growth factor (PlGF) were observed in PE cases, while soluble fms-like tyrosine kinase-1 (sFlt-1)/PlGF ratio was significantly higher in the PE group. Distribution of ACE I/D alleles and genotypes were comparable between women with PE and control women. A significant difference in the frequency of the I/I genotype was seen between PE cases and control women according to the recessive model, with a trend towards association in the codominant model. Carriers of the I/I genotype had significantly higher infant birth weights compared to the I/D and the D/D genotype carriers. A dose-dependent relationship was also seen in VEGF and PlGF plasma levels and specific ACE I/D genotypes, with the lowest VEGF levels seen in the I/I genotype carriers compared to the D/D genotype carriers. Similarly, the I/I genotype carriers had the lowest PlGF levels compared to I/D and D/D genotype carriers. Furthermore, when studying the linkage between PE features, we found a positive correlation between PAC and PIGF. Our study suggests a role for ACE I/D polymorphism in the pathogenesis of PE, possibly through modulating VEGF and PlGF levels and infant birth weight, and highlights the relationship between PAC and PlGF. ●Decreased active renin (ARC), aldosterone (PAC), and PlGF levels seen in PE cases.●Higher soluble fms-like tyrosine kinase-1 (sFlt-1)/PlGF ratio seen in PE group.●ACE I/D allele and genotype frequencies comparable between PE cases and controls.●ACE I/I genotype linked with lower PLGF and VEGF levels and high infant birth weight.
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