Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/319287
Type: Artigo de periódico
Title: A Single Nucleotide Variant In The Promoter Region Of 17β-hsd Type 5 Gene Influences External Genitalia Virilization In Females With 21-hydroxylase Deficiency
Abstract: Background: In 21-hydroxylase deficiency (21-OHD), there is an influence of genotype on the severity of external genitalia virilization. However, females carrying mutations predicting a similar impairment of enzymatic activity present a wide variability of genital phenotypes. In such cases, interindividual variability in genes related to the sex steroid hormone pathway could play a role. Objective: To evaluate the influence of POR, HSD17B5 and SRD5A2 variants on the severity of external genitalia virilization in 21-OHD females. Design and Patients: Prader stages were evaluated in 178 females with 21-OHD from a multicenter study. The 21-OHD genotypes were divided into two groups according to their severity: severe and moderate. The influences of the POR p.A503V, HSD17B5 c.-71A>G, HSD17B5 c.-210A>C, and SRD5A2 p.A49T and p.V89L variants on the degree of external genitalia virilization were analyzed. Results: The POR p.A503V, HSD17B5 c.-71A>G, HSD17B5 c.-210A>C, and SRD5A2 p.A49T and p.V89L variants were found in 25, 33, 17, 1, and 31% of the alleles, respectively. In uni- and multilinear regression, HSD17B5 c.-210A>C has a significant influence on the degree of external genitalia virilization. This variant was also identified with a higher frequency in the most severely virilized females. Conclusion: We demonstrated that a variant in the promoter region of HSD17B5 related to fetal androgen synthesis influences the genital phenotype in 21-OHD females. © 2016 S. Karger AG, Basel.
Editor: S. Karger AG
Citation: Hormone Research In Paediatrics. S. Karger Ag, v. 85, p. 333 - 338, 2016.
Rights: fechado
Identifier DOI: 10.1159/000445684
Address: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84973855990&partnerID=40&md5=758c5b3f0aac8ed346efe1b32c189126
Date Issue: 2016
Appears in Collections:Unicamp - Artigos e Outros Documentos

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