Home Late onset X-linked adrenal hypoplasia congenita with hypogonadotropic hypgonadism due to a novel 4-bp deletion in exon 2 of NR0B1
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Late onset X-linked adrenal hypoplasia congenita with hypogonadotropic hypgonadism due to a novel 4-bp deletion in exon 2 of NR0B1

  • Johari Mohd Ali EMAIL logo , Muhammad Yazid Jalaludin ORCID logo and Fatimah Harun
Published/Copyright: July 8, 2014

Abstract

We report a novel NR0B1 mutation in a patient affected with X-linked adrenal hypoplasia congenita (X-AHC). The proband first presented with a generalized convulsion at 11 years, 4 months. His clinical and biochemical presentations were consistent with adrenal insufficiency. His basal 17-hydroxyprogesterone (17-OHP) level was not high, and the poor response in 17-OHP on ACTH stimulation test excluded congenital adrenal hyperplasia. At 14 years of age, he did not show any signs of puberty, with low levels of LH, FSH, and testosterone and unresponsiveness to lutenizing hormone releasing hormone stimulation test. Direct DNA sequencing revealed that the proband is hemizygous for a novel NR0B1 mutation (c.1177_1180delGGCC, p.Gly393Cysfs*4). The mother is the conductor of the mutation, which is likely pathogenic as the C-terminus truncated protein lacks the activation function-2 (AF2-TA) transactivation domain, which is highly conserved among members of the nuclear receptor superfamily.


Corresponding author: Johari Mohd Ali, Faculty of Medicine, Department of Molecular Medicine, University of Malaya, 50603 Kuala Lumpur, Malaysia, Phone: +03-79674906, Fax: 03-79674957, E-mail:

Acknowledgments

This study was partially funded by a research grant from the University of Malaya (No. RG469-12HTM).

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Received: 2014-4-10
Accepted: 2014-6-13
Published Online: 2014-7-8
Published in Print: 2014-11-1

©2014 by De Gruyter

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