期刊
JOURNAL OF THE ENDOCRINE SOCIETY
卷 3, 期 3, 页码 665-669出版社
ENDOCRINE SOC
DOI: 10.1210/js.2019-00011
关键词
thyroid hormone; nuclear receptor; genetic disease
We found a sporadic case of mental retardation associated with short stature and constipation. We investigated the possible genetic origin of the syndrome. Clinical and biochemical investigations were conducted. Exome sequencing was used to search for pathogenic variations. A de novo mutation (c.1183G>T, p.E395X) was found in one allele of the THRA gene. The mutation creates a stop codon, which eliminates the C-terminal helix of the TR alpha 1 receptor for thyroid hormone. The patient has typical symptoms for the resistance to thyroid hormone alpha (RTH alpha) genetic disease, but has a normal head circumference. There are now 21 known mutations in THRA. All mutations that alter the C-terminal helix of TR alpha 1 lead to severe forms of RTH alpha. Copyright (C) 2019 Endocrine Society.
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