منابع مشابه
Regulation of growth hormone-releasing hormone gene expression and biosynthesis.
Growth hormone-releasing hormone (GRH) was initially isolated, characterized, sequenced, and cloned from human tumors and subsequently from the hypothalamus of humans and other animal species. Extensive structure-function studies have indicated the amino terminus to be most important for its biologic action, and the primary mechanism of its bioinactivation occurs by cleavage of an amino termina...
متن کاملRegulation of gene expression by thyroid hormone.
The thyroid hormones (3,5,3',5'-tetraiodo-L-thyronine [L-T4]' and 3,5,3'triiodo-L-thyronine [L-T3]) have marked effects on the growth, development, and metabolic function of virtually all organ systems and tissues ofhuman beings and other higher organisms (1-3). L-T4 was one of the first hormones to be isolated and its structure determined (4-6). Several decades later L-T3 was identified in the...
متن کاملRegulation of insulin-like growth factor I gene expression by growth hormone.
Recombinant clones containing exon 3 of the insulin-like growth factor I (IGF-I) gene were isolated from a mouse genomic library. These sequences were used to generate an RNA probe, which was used in a solution hybridization assay to quantitate IGF-I mRNA in various murine tissues as a function of growth hormone status. The liver is the major site of IGF-I synthesis and the level of IGF-I mRNA ...
متن کاملInsulin regulation of rat growth hormone gene transcription.
We have previously shown that insulin suppresses growth hormone (GH) messenger (m) RNA levels in rat pituitary cells. To further delineate the molecular mechanism of insulin action, the effect of insulin treatment on GH gene transcription rates was examined in GH3 pituitary cells grown in serum-free defined medium. A transcriptional run-off assay was performed when intact isolated nuclei were a...
متن کاملCREB-independent regulation by CBP is a novel mechanism of human growth hormone gene expression.
Hypothalamic growth hormone-releasing hormone (GHRH) stimulates growth hormone (GH) gene expression in anterior pituitary somatotrophs by binding to the GHRH receptor, a G-protein-coupled transmembrane receptor, and by mediating a cAMP-mediated protein kinase A (PKA) signal-transduction pathway. Two nonclassical cAMP-response element motifs (CGTCA) are located at nucleotides -187/-183 (distal c...
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ژورنال
عنوان ژورنال: Pediatric Nephrology
سال: 2009
ISSN: 0931-041X,1432-198X
DOI: 10.1007/s00467-009-1258-y