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	Provedor de dados BJMBR (2) Autor Coviello,A. (1) Falkenstein,D. (1) Figueiredo,J.F. (1) Jerez,S. (1) Peral de Bruno,M. (1) Ribeiro,C.A.L. (1) Santos,J.C. (1) Mais... Palavra-chave Osmotic water permeability (2) Angiotensin-(1-7) (1) Arginine vasopressin (1) Cortical collecting ducts (1) Magnesium (1) Receptor subtypes (1) Toad skin (1) Mais... Tipo do documento Info:eu-repo/semantics/article (1) Info:eu-repo/semantics/other (1) Ano 2000 (1) 1999 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Inhibitory effect of high [Mg2+] on the vasopressin-stimulated hydroosmotic permeability of the isolated perfused cortical collecting duct BJMBR Falkenstein,D.; Ribeiro,C.A.L.; Figueiredo,J.F.. High magnesium concentration inhibits the effect of arginine vasopressin (AVP) on smooth muscle contraction and platelet aggregation and also influences hepatocyte AVP receptor binding. The aim of this study was to determine the role of magnesium concentration [Mg2+] in AVP-stimulated water transport in the kidney collecting duct. The effect of low and high peritubular [Mg2+] on the AVP-stimulated osmotic water permeability coefficient (Pf) was evaluated in the isolated perfused rabbit cortical collecting duct (CCD). Control tubules bathed and perfused with standard Ringer bicarbonate solution containing 1 mM Mg2+ presented a Pf of 223.9 ± 27.2 µm/s. When Mg2+ was not added to the bathing solution, an increase in the AVP-stimulated Pf to 363.1 ± 57.2 µm/s... Tipo: Info:eu-repo/semantics/other Palavras-chave: Cortical collecting ducts; Magnesium; Arginine vasopressin; Osmotic water permeability. Ano: 1999 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1999000800016 Angiotensin-(1-7) increases osmotic water permeability in isolated toad skin BJMBR Santos,J.C.; Jerez,S.; Peral de Bruno,M.; Coviello,A.. Angiotensin-(1-7) (Ang-(1-7)) increased osmotic water permeability in the isolated toad skin, a tissue with functional properties similar to those of the distal mammalian nephron. Concentrations of 0.1 to 10 µM were effective, with a peak at 20 min. This effect was similar in magnitude to that of frog skin angiotensin II (Ang II) and oxytocin but lower than that of human Ang II and arginine-vasotocin. The AT2 angiotensin receptor antagonist PD 123319 (1.0 µM) fully inhibited the response to 0.1 µM Ang-(1-7) but had no effect on the response to Ang II at the same concentration. The specific receptor antagonist of Ang-(1-7), A-779, was ineffective in blocking the response to Ang-(1-7) and to frog skin Ang II. The AT1 receptor subtype antagonist losartan,... Tipo: Info:eu-repo/semantics/article Palavras-chave: Angiotensin-(1-7); Toad skin; Osmotic water permeability; Receptor subtypes. Ano: 2000 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2000000900018 Registros recuperados: 2 Primeira ... 1 ... Última

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