Does plasma ANP participate in natriuresis induced by a-MSH?
-Melanocyte-stimulating hormone (-MSH; 0.6 and 3 nmol) microinjected into the anteroventral region of the third ventricle (AV3V) induced a significant increase in diuresis without modifying natriuresis or kaliuresis. Intraperitoneal (ip) injection of -MSH (3 and 9.6 nmol) induced a significant in...
| Autores: | , , , , , |
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| Formato: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 1997 |
| País: | Brasil |
| Recursos: | Universidade Federal do Pará (UFPA) |
| Repositorio: | Repositório Institucional da UFPA |
| Idioma: | inglés |
| OAI Identifier: | oai:repositorio.ufpa.br:2011/3290 |
| Acesso em linha: | http://repositorio.ufpa.br/jspui/handle/2011/3290 |
| Access Level: | acceso abierto |
| Palavra-chave: | Hormônio estimulador de melanócito Fator natriurético atrial Natriurese Caliureses Diurelis |
| Resumo: | -Melanocyte-stimulating hormone (-MSH; 0.6 and 3 nmol) microinjected into the anteroventral region of the third ventricle (AV3V) induced a significant increase in diuresis without modifying natriuresis or kaliuresis. Intraperitoneal (ip) injection of -MSH (3 and 9.6 nmol) induced a significant increase in urinary sodium, potassium and water excretion. Intraperitoneal (3 and 4.8 nmol) or iv (3 and 9.6 nmol) administration of -MSH did not induce any significant changes in plasma atrial natriuretic peptide (ANP), suggesting that the natriuresis, kaliuresis and diuresis induced by the systemic action of -MSH can be dissociated from the increase in plasma ANP. These preliminary results suggest that -MSH may be involved in a -MSHindependent mechanism of regulation of hydromineral metabolism. |
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