نتایج جستجو برای: r1a
تعداد نتایج: 210 فیلتر نتایج به سال:
Here we present a novel isoform of the metabotropic G-protein-coupled receptor for gamma-aminobutyric acid (GABA). The isoform, termed GABA(B)R1c (R1c), differs from the recently identified R1a and R1b receptors by an in-frame insertion of 31 amino acids between the second extracellular loop and the fifth transmembrane region. Analysis of the rat GABA(B)R1 gene demonstrates that the insertion i...
International Union of Pharmacology. LVI. Ghrelin receptor nomenclature, distribution, and function.
Ghrelin is a 28-amino acid peptide originally isolated from rat stomach and is cleaved from a 117-amino acid precursor. The sequence of the mature peptide from rats and mice differs by two amino acids from that of human ghrelin. Alternative splicing of the ghrelin gene transcript can result in the translation of a second biologically active peptide, des-Gln14-ghrelin. Both peptides have a uniqu...
We identified four new isoforms of human CRH-R1 (e-h) and three of mouse (mCRH-R1c, e, and f). In all new forms exon 6 was missing. Human CRH-R1e was characterized by the deletion of exons 3 and 4; exon 12 from CRH-R1f; exon 11, 27 base pairs (bp) of exon 10 and 28 bp of exon 12 from CRH-R1g and CRH-R1h by the addition of a cryptic exon. In mouse CRH-R1c exon 3 was spliced out; in mCRH-R1e exon...
After the discovery in 1996 of the GH secretagogue-receptor type-1a (GHS-R1a) as an orphan G-protein coupled receptor, many research groups attempted to identify the endogenous ligand. Finally, Kojima and colleagues successfully isolated the peptide ligand from rat stomach extracts, determined its structure, and named it ghrelin. The GHS-R1a is now accepted to be the ghrelin receptor. The exist...
BACKGROUND AND PURPOSE Inflammation plays a key role in cerebral ischemia through activation of microglia and infiltration by leukocytes. Flow cytometry is a well-established method for quantitative and qualitative analysis of inflammatory cells. However, this technique has not been applied to the study of cerebral ischemia inflammation. The aim of this study was to establish a flow cytometric ...
Acute effects of ghrelin on excitatory synaptic transmission were evaluated on hippocampal CA1 synapses. Ghrelin triggered an enduring enhancement of synaptic transmission independently of NMDA receptor activation and probably via postsynaptic modifications. This ghrelin-mediated potentiation resulted from the activation of GHS-R1a receptors as it was mimicked by the selective agonist JMV1843 a...
The therapeutic effect of ghrelin on wound healing was assessed using a rat model of combined radiation and burn injury (CRBI). Rat ghrelin, anti-rat tumor necrosis factor (TNF) α polyclonal antibody (PcAb), or selective antagonists of p38 mitogen-activated protein kinase (MAPK), c-Jun N-terminal kinase (JNK), and growth hormone secretagogue receptor (GHS-R) 1a (SB203580, SP600125, and [D-Lys3]...
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