Broadening the Spectrum of Ehlers Danlos Syndrome in Patients With Congenital Adrenal Hyperplasia
Author(s) -
Rachel Morissette,
Wuyan Chen,
Ashley F. Perritt,
Jennifer L. Dreiling,
Andrew E. Arai,
Vandana Sachdev,
Hwaida Hannoush,
Ashwini Mallappa,
Xu Zhi,
Nazli B. McDonnell,
Martha Quezado,
Deborah P. Merke
Publication year - 2015
Publication title -
the journal of clinical endocrinology and metabolism
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.206
H-Index - 353
eISSN - 1945-7197
pISSN - 0021-972X
DOI - 10.1210/jc.2015-2232
Subject(s) - ehlers–danlos syndrome , sanger sequencing , phenotype , biology , missense mutation , genetics , pseudoxanthoma elasticum , microbiology and biotechnology , medicine , pathology , gene , mutation
The contiguous gene deletion syndrome (CAH-X) was described in a subset (7%) of congenital adrenal hyperplasia (CAH) patients with a TNXA/TNXB chimera, resulting in deletions of CYP21A2, encoding 21-hydroxylase necessary for cortisol biosynthesis, and TNXB, encoding the extracellular matrix glycoprotein tenascin-X (TNX). This TNXA/TNXB chimera is characterized by a 120-bp deletion in exon 35 and results in TNXB haploinsufficiency, disrupted TGF-β signaling, and an Ehlers Danlos syndrome phenotype.
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