Clinical and Genetic Analysis of a Korean Patient with Late-onset X-linked Adrenal Hypoplasia Congenita and Hypogonadotropic Hypogonadism: Identification of a Novel Mutation in the NR0B1 Gene

Author:

Lee Y-W1,Won JC2,Ki C-S3,Lee HY4,Ahn HS4,Lee YK1,Kim YH5,Kim C-H4

Affiliation:

1. Department of Laboratory Medicine and Genetics, Soonchunhyang University Bucheon Hospital and Soonchunhyang University College of Medicine, Bucheon, South Korea

2. Department of Endocrinology and Metabolism, Kangbuk Samsung Hospital, Sungkyunkwan University School of Medicine, Seoul, South Korea

3. Department of Laboratory Medicine and Genetics, Samsung Medical Centre, Sungkyunkwan University School of Medicine, Seoul, South Korea

4. Division of Endocrinology and Metabolism, Department of Internal Medicine, Soonchunhyang University Bucheon Hospital and Soonchunhyang University College of Medicine, Bucheon, South Korea

5. Department of Urology, Soonchunhyang University Bucheon Hospital and Soonchunhyang University College of Medicine, Bucheon, South Korea

Abstract

Adrenal hypoplasia congenita (AHC) is caused by mutations in the NR0B1 gene on chromosome Xp21.3-p21.2. It manifests as X-linked primary adrenal failure in early infancy or childhood and as hypogonadotropic hypogonadism (HHG) at puberty. Although studies of AHC patients and mutations in the NR0B1 gene have been reported throughout the world, there has previously been only one other case report from Korea. We encountered a 23-year old Korean male with delayedonset AHC/HHG who had been previously diagnosed with adrenal insufficiency of unknown aetiology at age 13 years. Delayed puberty and incomplete HHG were observed. Direct sequencing of the NR0B1 gene revealed the patient to have a novel insertion mutation (c.959_960insT; Leu321ProfsX68). Although AHC is believed to be rare, it should be considered in a differential diagnosis of patients showing late-onset primary adrenal insufficiency.

Publisher

SAGE Publications

Subject

Biochemistry, medical,Cell Biology,Biochemistry,General Medicine

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