DAX-1基因新的移码突变导致一例迟发型先天性肾上腺发育不良症

One case of late-onset adrenal hypoplasia congenita caused by a novel mutation of DAX-1 gene

本研究发现1例先天性肾上腺发育不良症和低促性腺激素性性腺功能减退症患者DAX-1基因第一外显子处993delC新型移码突变,导致终止密码子提前59个氨基酸出现,其母亲、大姐及二姐均为杂合突变,父亲及哥哥为正常野生型.患者糖皮质激素替代治疗后,症状改善,但ACTH未被抑制.

A novel hemizygous frameshift mutation in exon1of DAX-1 gene （993delC） was found in a patient with late-onset adrenal hypoplasia congenita and hypogonadotropic hypogonadism.This mutation led the stop codon to appear in advance of 59 amino acids.His mother and two sisters were the carriers of this hemizygous mutation while his father and brother were wild-type.After glucocorticoid hormone replacement therapy, the clinical symptom was improved, but the level of ACTH was not suppressed.