Now showing items 1-10 of 11
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 ...
Inhibitory mechanism of the nucleus of the solitary tract involved in the control of cardiovascular, dipsogenic, hormonal, and renal responses to hyperosmolality
(American Journal of Physiology: Regulatory Integrative and Comparative Physiology, 2013-06-11) [Artigo]
The nucleus of the solitary tract (NTS) is the primary site of visceral afferents to the central nervous system. In the present study, we investigated the effects of lesions in the commissural portion of the NTS (commNTS) ...
Role of central α1- and α2-adrenoceptors on the dipsogenic and cardiovascular effect of angiotensin II
(Pharmacology Biochemistry and Behavior, 1990-08-01) [Artigo]
We investigated the effects of previous central treatment with prazosin (an α1-adrenoceptor antagonist) or clonidine (an α2-adrenoceptor agonist) on the dipsogenic, pressor and tachycardic responses produced by ...
Control of breathing and blood pressure by parafacial neurons in conscious rats
(Experimental Physiology, 2013-01-01) [Artigo]
New Findings: • What is the central question of this study? The main purpose of the present manuscript was to investigate the cardiorespiratory responses to hypoxia or hypercapnia in conscious rats submitted to neuronal ...
Macrophage migration inhibitory factor in the nucleus of solitary tract decreases blood pressure in SHRs
(Cardiovascular Research, 2013-01-01) [Artigo]
Aims The macrophage migration inhibitory factor (MIF) is an intracellular inhibitor of the central nervous system actions of angiotensin II on blood pressure. Considering that angiotensin II actions at the nucleus of the ...
Hindbrain mineralocorticoid mechanisms on sodium appetite
(American Journal of Physiology: Regulatory Integrative and Comparative Physiology, 2013-02-01) [Artigo]
Aldosterone acting on the brain stimulates sodium appetite and sympathetic activity by mechanisms that are still not completely clear. In the present study, we investigated the effects of chronic infusion of aldosterone ...
Commissural nucleus of the solitary tract lesions reduce food intake and body weight gain in rats
(Brain Research, 1996-11-18) [Artigo]
This study investigated the effects of an electrolytic lesion of the commissural subnucleus of the nucleus of the solitary tract (commNTS) on bodyweight, daily food and water intake, and plasma glucose and insulin in rats. ...
Central nitric oxide modulates hindquarter vasodilation elicited by AMPA receptor stimulation in the NTS of conscious rats
(American Journal of Physiology: Regulatory Integrative and Comparative Physiology, 2006-05-01) [Artigo]
Microinjection of S-α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) in the nucleus of the solitary tract (NTS) of conscious rats causes hypertension, bradycardia, and vasoconstriction in the renal, mesenteric, ...
Effect of furosemide treatment on the central and peripheral pressor responses to cholinergic and adrenergic agonists, angiotensin II, hypertonic solution and vasopressin
(Neuroscience Letters, 1992-08-31) [Artigo]
The present study was performed to investigate the effect of treatment with furosemide on the pressor response induced by intracerebroventricular (i.c.v.) injections of cholinergic (carbachol) and adrenergic (norepinephrine) ...
Is carotid body input the only critical mechanism involved in hypertension in spontaneously hypertensive rat?
(Journal of Physiology, 2013-02-01) [Carta]