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	Provedor de dados BJMBR (3) Autor Abrantes,J.L.F. (1) Boschero,A.C. (1) Bosqueiro,J.R. (1) Brañes,M.C. (1) Carneiro,E.M. (1) Cestari,T.M. (1) Giozzet,V.A.G. (1) González,H.E. (1) Martínez,A.D. (1) Rafacho,A. (1) Sáez,J.C. (1) Mais... Palavra-chave Protein phosphorylation (3) Astrocytes (1) Calcium (1) Cell-to-cell communication (1) Connexins (1) GFAP (1) Gap junctions (1) Glial fibrillary acidic protein (1) Glutamate receptors (1) Insulin signaling (1) Intermediate filament dynamics (1) Low-protein diet (1) Pancreatic islets (1) Protein kinases (1) Sites of phosphorylation (1) Β-cell mass (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Info:eu-repo/semantics/other (1) Ano 2009 (1) 1998 (1) 1997 (1) País Brazil (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Regulation of gap junctions by protein phosphorylation BJMBR Sáez,J.C.; Martínez,A.D.; Brañes,M.C.; González,H.E.. Gap junctions are constituted by intercellular channels and provide a pathway for transfer of ions and small molecules between adjacent cells of most tissues. The degree of intercellular coupling mediated by gap junctions depends on the number of gap junction channels and their activity may be a function of the state of phosphorylation of connexins, the structural subunit of gap junction channels. Protein phosphorylation has been proposed to control intercellular gap junctional communication at several steps from gene expression to protein degradation, including translational and post-translational modification of connexins (i.e., phosphorylation of the assembled channel acting as a gating mechanism) and assembly into and removal from the plasma membrane.... Tipo: Info:eu-repo/semantics/article Palavras-chave: Gap junctions; Connexins; Protein phosphorylation; Sites of phosphorylation; Protein kinases; Cell-to-cell communication. Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1998000500001 Reduced pancreatic β-cell mass is associated with decreased FoxO1 and Erk1/2 protein phosphorylation in low-protein malnourished rats BJMBR Rafacho,A.; Giozzet,V.A.G.; Boschero,A.C.; Abrantes,J.L.F.; Cestari,T.M.; Carneiro,E.M.; Bosqueiro,J.R.. A low-protein diet leads to functional and structural pancreatic islet alterations, including islet hypotrophy. Insulin-signaling pathways are involved in several adaptive responses by pancreatic islets. We determined the levels of some insulin-signaling proteins related to pancreatic islet function and growth in malnourished rats. Adult male Wistar rats (N = 20 per group) were fed a 17% protein (normal-protein diet; NP) or 6% protein (low-protein diet; LP), for 8 weeks. At the end of this period, blood glucose and serum insulin and albumin levels were measured. The morphometric parameters of the endocrine pancreas and the content of some proteins in islet lysates were determined. The β-cell mass was significantly reduced (≅65%) in normoglycemic but... Tipo: Info:eu-repo/semantics/article Palavras-chave: Β-cell mass; Insulin signaling; Low-protein diet; Pancreatic islets; Protein phosphorylation. Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2009001000010 Control of the phosphorylation of the astrocyte marker glial fibrillary acidic protein (GFAP) in the immature rat hippocampus by glutamate and calcium ions: possible key factor in astrocytic plasticity BJMBR The present review describes recent research on the regulation by glutamate and Ca2+ of the phosphorylation state of the intermediate filament protein of the astrocytic cytoskeleton, glial fibrillary acidic protein (GFAP), in immature hippocampal slices. The results of this research are discussed against a background of modern knowledge of the functional importance of astrocytes in the brain and of the structure and dynamic properties of intermediate filament proteins. Astrocytes are now recognized as partners with neurons in many aspects of brain function with important roles in neural plasticity. Site-specific phosphorylation of intermediate filament proteins, including GFAP, has been shown to regulate the dynamic equilibrium between the polymerized and... Tipo: Info:eu-repo/semantics/other Palavras-chave: Astrocytes; Glial fibrillary acidic protein; GFAP; Glutamate receptors; Protein phosphorylation; Calcium; Intermediate filament dynamics. Ano: 1997 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1997000300005 Registros recuperados: 3 Primeira ... 1 ... Última

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