Central angiotensin converting enzyme-blockade and thirst

Autor: W A, Saad, A C, Luiz, L A, Camargo, J V, Menani, A, Renzi, J E, Silveira
Rok vydání: 1993
Předmět:
Zdroj: Brazilian journal of medical and biological research = Revista brasileira de pesquisas medicas e biologicas. 26(9)
ISSN: 0100-879X
Popis: 1. The effect of lisinopril, a potent inhibitor of angiotensin converting enzyme (ACE), injected into the medial preoptic area (MPOA) on water intake was investigated in male Holtzman rats (200-250 g). 2. Injection of lisinopril (2 micrograms/microliters) into the MPOA abolished the water intake induced by subcutaneous (sc) injection of isoprenaline (100%) and water deprivation (90%) and drastically reduced the water intake induced by sc injection of polyethyleneglycol (60%). A small reduction of water intake induced by lisinopril was also observed 90 and 120 min after sc hypertonic saline (N = 10 for each group). 3. These results suggest that central ACE activation, particularly in the MPOA, plays an important role in the dipsogenic responses induced by the agents studied.
Databáze: OpenAIRE