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Lesions of the commissural subnucleus of the nucleus of the solitary tract increase isoproterenol-induced water intake BJMBR
Blanch,G.T.; Freiria-Oliveira,A.H.; Colombari,E.; Menani,J.V.; Colombari,D.S.A..
The nucleus of the solitary tract (NTS) is the primary site of the cardiovascular afferent information about arterial blood pressure and volume. The NTS projects to areas in the central nervous system involved in cardiovascular regulation and hydroelectrolyte balance, such as the anteroventral third ventricle region and the lateral parabrachial nucleus. The aim of the present study was to investigate the effects of electrolytic lesion of the commissural NTS on water and 0.3 M NaCl intake and the cardiovascular responses to subcutaneous injection of isoproterenol. Male Holtzman rats weighing 280 to 320 g were submitted to sham lesion or electrolytic lesion of the commissural NTS (N = 6-15/group). The sham-lesioned rats had the electrode placed along the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Nucleus of the solitary tract; Commissural nucleus of the rat solitary tract; Water intake; Arterial pressure; Isoproterenol; Hindbrain.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2007000800013
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Association of exercise training and angiotensin-converting enzyme 2 activator improves baroreflex sensitivity of spontaneously hypertensive rats BJMBR
Lopes,P.R.; Moreira,M.C.S.; Marques,S.M.; Pinto,I.S.J.; Macedo,L.M.; Silva,C.C.; Freiria-Oliveira,A.H.; Rebelo,A.C.S.; Reis,A.A.S.; Rosa,D.A.; Ferreira-Neto,M.L.; Castro,C.H.; Pedrino,G.R..
The present study sought to determine cardiovascular effects of aerobic training associated with diminazene aceturate (DIZE), an activator of the angiotensin converting enzyme 2, in spontaneously hypertensive rats (SHRs). Male SHRs (280–350 g) were either subjected to exercise training or not (sedentary group). The trained group was subjected to 8 weeks of aerobic training on a treadmill (five times a week, lasting 60 min at an intensity of 50–60% of maximum aerobic speed). In the last 15 days of the experimental protocol, these groups were redistributed into four groups: i) sedentary SHRs with daily treatment of 1 mg/kg DIZE (S+D1); ii) trained SHRs with daily treatment of 1 mg/kg DIZE (T+D1); iii) sedentary SHRs with daily treatment of vehicle (S+V); and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Intrinsic heart rate; Diminazene aceturate; Aerobic training; Double autonomic blockade; Renin-angiotensin system.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2016000900603
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