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Rev. Bras. Saúde Mater. Infant. (Online) ; 20(2): 467-471, Apr.-June 2020. tab
Article in English | SES-SP, LILACS | ID: biblio-1136441

ABSTRACT

Abstract Objectives: the present study aimed to evaluate the association between the rs1799998 polymorphism of the CYP11B2 gene and the susceptibility to preeclampsia (PE) in a Brazilian population. Methods: the study group comprised 61 women who were diagnosed with PE. The control group included 116 women who did not show changes in their blood pressure levels during their pregnancies. The rs1799998 polymorphism of the CYP11B2 gene was amplified by allele-specific polymerase chain reaction (PCR). A multiple logistic regression analysis was performed using the SNPStat program to evaluate the risk of the CYP11B2 gene rs1799998 polymorphism contributing to PE. Results: the PE group had the following genotypes: 1.64% CC, 91.80% CT, and 6.56% TT. In the control group, the observed genotypic frequencies were: 11% CC, 73% CT, and 16% TT. The genotypic frequency distribution did not fit the Hardy Weinberg Equilibrium (HWE) in either study group. The multiple logistic regression analysis showed a statistically significant difference for the rs1799998 polymorphism in the recessive model. Conclusion: the results suggest an association between the recessive model of C/C genotype of the rs1799998 polymorphism of the CYP11B2 gene and susceptibility to PE.


Resumo Objetivos: avaliar a associação entre o polimorfismo rs1799998 do gene CYP11B2 e a suscetibilidade à PE em uma população brasileira. Métodos: participaram desse estudo 61 mulheres com PE e 116 mulheres normotensas. O polimorfismo rs1799998 do gene CYP11B2 foi amplificado por PCR alelo-específica. O risco do polimorfismo rs1799998 do gene CYP11B2 contribuir com a PE foi avaliado pela análise de regressão logística múltipla. Resultados: as frequências genotípicas observadas foram 1.64% CC, 91.80% CT e 6.56% TT no grupo PE e 11%CC, 73%CT e 16%TT grupo controle. A distribuição da frequência genotípica não estava em Equilíbrio de Hardy Weinberg em nenhum dos grupos estudados. A análise de regressão logística múltipla demonstrou diferença estatisticamente significativa para o polimorfismo rs1799998 no modelo recessivo. Conclusão: o presente trabalho sugere associação do genótipo C/C no modelo recessivo, do polimorfismo rs1799998 do gene CYP11B2 com a suscetibilidade a PE.


Subject(s)
Humans , Female , Pregnancy , Polymorphism, Genetic , Pre-Eclampsia/genetics , Cytochrome P-450 CYP11B2 , Cytochrome P-450 Enzyme System , Brazil , Genetic Markers , Logistic Models , Genetic Predisposition to Disease , Genetic Profile
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