hrp0082lbp-d3-1009 | (1) | ESPE2014

Family Studies of CYP21A2 Gene Identify Different Haplotypes for Nonclassical 21-Hydroxylase Deficiency in Brazilian Population

de Paula Michelatto Debora , Grimaldi Larissa Magalhaes , Alpiste Marcel Costa , Baptista Maria Tereza Matias , Guerra-Junior Gil , Valente de Lemos-Marini Sofia Helena , Palandi de Mello Maricilda

Background: Congenital adrenal hyperplasia, one of the most frequent autosome recessive disorders, is caused by defects in steroidogenic enzymes involved in the cortisol biosynthesis. Approximately 95% of cases are caused by a deficiency of the 21-hydroxylase enzyme. Its deficiency leads to androgen excess, consequently, to virilization and rapid somatic growth with accelerated skeletal maturation. Mutations in CYP21A2 are responsible for different forms of 21-hydroxylase defi...