Is preeclampsia associated with higher frequency of HSP70 gene polymorphisms?

AimTo evaluate the possible association of three different HSP70 gene polymorphisms with preeclampsia.Study designHSPA1A G(190)C, HSPA1B A(1267)G and HSPA1L T(2437)C polymorphisms were analyzed from blood samples of 72 women with preeclampsia and of 70 healthy pregnant women as controls by PCR-RFLP method.ResultsHSPA1B (1267)GG and HSPA1L (2437)CC genotypes occurred more frequently in preeclamptic patients compared to healthy controls (p < 0.002 [RR: 4.38, 95% CI: 1.56–12.28]) and (p < 0.03 [RR: 1.31, 95% CI: 1.03–1.67]), respectively. Significant difference was found in the distribution of HSPA1B A(1267)G genotype between the preeclamptic and control group (p < 0.004 [RR: 0.67, 95% CI: 0.51–0.88]). Distribution of HSPA1A G(190)C was similar in the preeclamptic and control group. In controls, genotype distribution of HSPA1A G(190)C and HSPA1L T(2437)C was in Hardy–Weinberg equilibrium, while this criterion was not fulfilled for HSPA1B A(1267)G.ConclusionWe concluded that HSPA1B (1267)GG and HSPA1L (2437)CC genotypes were more frequent among preeclamptic than control patients, suggesting that these genotypes may play a role in the susceptibility for preeclampsia.