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Neonatal Med > Volume 23(1); 2016 > Article
Neonatal Medicine 2016;23(1):53-58.
DOI:    Published online February 29, 2016.
Primary Adrenal Insufficiency in a Newborn With Adrenal Hypoplasia Congenita Caused by a Mutation of the DAX1 Gene.
Sun Hyoung Park, Yong Hee Hong, Sung Shin Kim
Department of Pediatrics, Soonchunhyang University Bucheon Hospital, Soonchunhyang University College of Medicine, Bucheon, Korea.
Adrenal hypoplasia congenita (AHC) is a rare inherited disorder of the adrenal gland caused by deletion or mutation of the dosage-sensitive sex-reversal AHC critical region on the X chromosome, gene 1 (DAX1) gene. The DAX1 gene is expressed in the adrenal cortex, the pituitary gland, the hypothalamus, the testis, and the ovary. Most affected infants present with failure to thrive, salt wasting, and hypoglycemic seizure in early life. Immediate mineralocorticoid and glucocorticoid replacement is essential. Most boys with AHC present with hypogonadotropic hypogonadism, resulting in failure to enter puberty and the need for testosterone treatment. However, a recent study revealed that the onset of puberty in boys with AHC can be variable, ranging from arrested or absent to precocious. We describe a case involving a newborn who presented with primary adrenal insufficiency due to a mutation of the DAX1 gene and was finally diagnosed with AHC.
Key Words: Adrenal hyperplasia congenita, Adrenal insufficiency, Infant newborn
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