Now showing items 1-10 of 54
Cardiovascular responses produced by central injection of hydrogen peroxide in conscious rats
(Brain Research Bulletin, 2006-12-11) [Artigo]
Reactive oxygen species (ROS) have been shown to modulate neuronal synaptic transmission and may play a role on the autonomic control of the cardiovascular system. In this study we investigated the effects produced by ...
Espécies reativas de oxigênio no controle neurovegetativo da pressão arterial
(Medicina, 2006-01-01) [Trabalho apresentado em evento]
The control of the blood pressure depends on the activity of select groups of neurons present in the central nervous system. Evidence has demonstrated that the redox state (a balance between oxidizing and reducing species) ...
Antihypertensive responses elicited by central moxonidine in rats: Possible role of nitric oxide
(Journal of Cardiovascular Pharmacology, 2006-06-01) [Artigo]
In the present study, we investigated the effects of pretreatment with N-G-nitro-L-arginine methyl ester (L-NAME) (nitric oxide synthase inhibitor) injected intravenously (IV) on the hypotension, bradycardia, and vasodilation ...
The bradycardic and hypotensive responses to serotonin are reduced by activation of GABA A receptors in the nucleus tractus solitarius of awake rats
(Brazilian Journal of Medical and Biological Research, 2005-07-01) [Artigo]
We investigated the effects of bilateral injections of the GABA receptor agonists muscimol (GABA A) and baclofen (GABA B) into the nucleus tractus solitarius (NTS) on the bradycardia and hypotension induced by iv serotonin ...
Lesions of the commissural subnucleus of the nucleus of the solitary tract increase isoproterenol-induced water intake
(Brazilian Journal of Medical and Biological Research, 2007-08-01) [Artigo]
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 ...
Vasopressin-dependent pressor responses induced by hypertonic saline load in rats with commissural NTS lesions
(FASEB Journal, 2007-04-01) [Resumo]
Involvement of central alpha(1)- and mu(2)-adrenoceptors on cardiovascular responses to moxonidine
(European Journal of Pharmacology, 2007-06-01) [Artigo]
In the present study we compared the effects produced by moxonidine (alpha(2)-adrenoceptor/imidazoline agonist) injected into the 4th cerebral ventricle and into the lateral cerebral ventricle on mean arterial pressure, ...
Effects of AV3V lesion on pilocarpine-induced pressor response and salivary gland vasodilation
(Brain Research, 2005-09-07) [Artigo]
The cholinergic agonist pilocarpine injected intraperitoneally (ip) increases mean arterial pressure (MAP) and superior mesenteric (SM) vascular resistance and reduces submandibular/sublingual gland (SSG) vascular resistance. ...
Role of pressor mechanisms from the NTS and CVLM in control of arterial pressure
(American Journal of Physiology: Regulatory Integrative and Comparative Physiology, 2005-11-01) [Artigo]
In the present study, we investigated the effects of inhibition of the caudal ventrolateral medulla (CVLM) with the GABA(A) agonist muscimol combined with the blockade of glutamatergic mechanism in the nucleus of the ...