Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados Biol. Res. (2) BJMBR (1) Autor CÁRDENAS,ANA M (1) Gomez,M.V. (1) Guatimosim,C. (1) Prado,M.A.M. (1) Romano-Silva,M.A. (1) STOJILKOVIC,STANKO S (1) Mais... Palavra-chave Exocytosis (3) Action potentials (1) BK channels (1) Calcium channels (1) Chromaffin cells (1) Chromaffin granules (1) Chromogranins (1) Endocytosis (1) FM1-43 (1) GH3 cells (1) Gonadotrophs (1) Lactotrophs (1) Laser scanning confocal microscopy (1) Nicotine receptors (1) SK channels (1) Somatotrophs (1) Synaptic vesicles (1) Mais... Tipo do documento Journal article (2) Info:eu-repo/semantics/article (1) Ano 2006 (1) 2004 (1) 1998 (1) País Chile (2) Brazil (1) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Recent advances in chromaffin cell biology: Summing up the last International Symposium on Chromaffin Cell Biology Biol. Res. CÁRDENAS,ANA M. The International Symposium on Chromaffin Cell Biology (ISCCB) brings together a group of approximately 150 scientists from around the world who meet every 2 years to discuss recent advances in our understanding of biogenesis and motion of secretory vesicles, synthesis, storage and release of secreted products (catecholamines, chromogranins, ATP), and mechanisms involving the excitation-secretion coupling, membrane ion channels, intracellular calcium homeostasis and exocytosis. The development of new technologies that allow an accurate measurement of catecholamines, vesicle motion, exocytosis, etc. are also analyzed. The 12th ISCCB, organized by Ricardo Borges, took place on September 20-26, 2003, in La Palma, Canary Islands, Spain. In this article we... Tipo: Journal article Palavras-chave: Chromaffin cells; Calcium channels; Nicotine receptors; Exocytosis; Chromaffin granules; Chromogranins. Ano: 2004 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602004000100002 Pituitary cell type-specific electrical activity, calcium signaling and secretion Biol. Res. STOJILKOVIC,STANKO S. All secretory anterior pituitary cells exhibit spontaneous and extracellular calcium-dependent electrical activity, but differ with respect to the patterns of firing and associated calcium signaling and hormone secretion. Thus, somatotrophs and lactotrophs fire plateau-bursting action potentials spontaneously and without coupling to calcium release from intracellular stores, which generate calcium signals of sufficient amplitude to keep steady hormone release. In these cells, both spontaneous electrical activity and basal hormone secretion can be further amplified by activation of Gq/11 and Gs-coupled receptors and inhibited by Gi/o/z-coupled receptors. In contrast, gonadotrophs fire single, high-amplitude spikes with limited ability to promote calcium... Tipo: Journal article Palavras-chave: Somatotrophs; Lactotrophs; Gonadotrophs; GH3 cells; SK channels; BK channels; Action potentials; Exocytosis. Ano: 2006 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602006000300004 Use of fluorescent probes to follow membrane traffic in nerve terminals BJMBR Guatimosim,C.; Romano-Silva,M.A.; Gomez,M.V.; Prado,M.A.M.. Optical tracers in conjunction with fluorescence microscopy have become widely used to follow the movement of synaptic vesicles in nerve terminals. The present review discusses the use of these optical methods to understand the regulation of exocytosis and endocytosis of synaptic vesicles. The maintenance of neurotransmission depends on the constant recycling of synaptic vesicles and important insights have been gained by visualization of vesicles with the vital dye FM1-43. A number of questions related to the control of recycling of synaptic vesicles by prolonged stimulation and the role of calcium to control membrane internalization are now being addressed. It is expected that optical monitoring of presynaptic activity coupled to appropriate genetic... Tipo: Info:eu-repo/semantics/article Palavras-chave: Laser scanning confocal microscopy; FM1-43; Exocytosis; Synaptic vesicles; Endocytosis. Ano: 1998 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1998001100018 Registros recuperados: 3 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco