Endocrine Journal
Online ISSN : 1348-4540
Print ISSN : 0918-8959
ISSN-L : 0918-8959
ORIGINALS
Mental Retardation in a Boy with Congenital Adrenal Hypoplasia: A Clue to Contiguous Gene Syndrome Involving DAX1 and IL1RAPL
RIE SASAKIYASUJI INAMOKAZUMASA SAITOHTOMONOBU HASEGAWAEIICHI KINOSHITATSUTOMU OGATA
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2003 Volume 50 Issue 3 Pages 303-307

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Abstract

We report on a 2 years and 9 months old Japanese boy with adrenal hypoplasia and mental retardation (MR) (developmental quotient ∼60) which occurred in the absence of severe adrenal crisis and resultant brain damage. Cytogenetic and molecular studies were performed in this boy and his parents with normal phenotype, showing that the boy had a maternally derived ∼2 Mb interstitial Xp deletion involving DAX1 (DSS-AHC critical region on the X chromosome, gene 1) for adrenal hypoplasia congenita and disrupting IL1RAPL (interleukin-1 receptor accessory protein-like) for non-specific MR. The results explain the development of MR in this boy in terms of contiguous gene syndrome, and suggest the importance of IL1RAPL analysis in patients with adrenal hypoplasia and MR.

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© The Japan Endocrine Society
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