A Novel Variant c.97C>T of the Growth Hormone Releasing Hormone Receptor Gene Causes Isolated Growth Hormone Deficiency Type Ib
J Clin Res Pediatr Endocrinol
; 10(3): 284-288, 2018 07 31.
Article
en En
| MEDLINE
| ID: mdl-29537382
ABSTRACT
Congenital isolated growth hormone deficiency (IGHD) type 1b is an autosomal recessive genetic condition caused by mutations of growth hormone (GH)-1 or the growth hormone releasing hormone receptor (GHRH-R) genes. Affected subjects present with symptoms of growth hormone deficiency (GHD) with low but detectable levels of growth hormone (GH), short stature and responsiveness to GH therapy. We describe a 13-month old girl with severe growth failure who showed a low GH response to two GH provocation tests and a modest increase of insulin-like growth factor-1 (IGF-1) to an IGF-1 generation test. Whole exome sequencing revealed a novel homozygous variant of the GHRH-R gene (c.97C>T), leading to a premature stop codon. Administration of recombinant human GH improved linear growth. This is the first report of a c.97C>T mutation of the GHRH-R gene.
Palabras clave
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Enfermedades de la Hipófisis
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Receptores de Hormona Reguladora de Hormona Hipofisaria
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Receptores de Neuropéptido
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Enanismo
Tipo de estudio:
Etiology_studies
Límite:
Female
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Humans
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Infant
Idioma:
En
Año:
2018
Tipo del documento:
Article