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	Provedor de dados BJMBR (2) Autor Dantas,M.A. (1) Futuro Neto,H.A. (1) Pires,J.G.P. (1) Silva,N.F. (1) Palavra-chave Excitatory amino acid receptors (2) AP-5 (1) Baroreflex (1) Bezold-Jarisch reflex (1) Blood pressure (1) Caudal pressor area (1) Chemoreflex (1) Electrical stimulation (1) Kynureic acid (1) Kynurenic acid (1) L-glutamate (1) NMDA receptors (1) Raphe nuclei (1) Ventrolateral medulla (1) Mais... Tipo do documento Info:eu-repo/semantics/article (1) Info:eu-repo/semantics/other (1) Ano 2002 (1) 1997 (1) País Brazil (2) Idioma Inglês (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 2 Primeira ... 1 ... Última Autonomic processing of the cardiovascular reflexes in the nucleus tractus solitarii BJMBR The nucleus tractus solitarii (NTS) receives afferent projections from the arterial baroreceptors, carotid chemoreceptors and cardiopulmonary receptors and as a function of this information produces autonomic adjustments in order to maintain arterial blood pressure within a narrow range of variation. The activation of each of these cardiovascular afferents produces a specific autonomic response by the excitation of neuronal projections from the NTS to the ventrolateral areas of the medulla (nucleus ambiguus, caudal and rostral ventrolateral medulla). The neurotransmitters at the NTS level as well as the excitatory amino acid (EAA) receptors involved in the processing of the autonomic responses in the NTS, although extensively studied, remain to be... Tipo: Info:eu-repo/semantics/other Palavras-chave: L-glutamate; Excitatory amino acid receptors; NMDA receptors; Baroreflex; Chemoreflex; Bezold-Jarisch reflex; AP-5; Kynureic acid. Ano: 1997 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1997000400015 Excitatory amino acid receptor blockade within the caudal pressor area and rostral ventrolateral medulla alters cardiovascular responses to nucleus raphe obscurus stimulation in rats BJMBR Silva,N.F.; Pires,J.G.P.; Dantas,M.A.; Futuro Neto,H.A.. Pressor responses elicited by stimulation of the nucleus raphe obscurus (NRO) depend on the integrity of the rostral ventrolateral medulla (RVLM). Therefore, to test the participation of excitatory amino acid (EAA) receptors in the cardiovascular responses evoked by NRO stimulation (1 ms, 100 Hz, 40-70 µA, for 10 s), the EAA antagonist kynurenic acid (Kyn) was microinjected at different sites in the ventrolateral medullar surface (2.7 nmol/200 nl) of male Wistar rats (270-320 g, N = 39) and NRO stimulation was repeated. The effects of NRO stimulation were: hypertension (deltaMAP = +43 ± 1 mmHg, P<0.01), bradycardia (deltaHR = -30 ± 7 bpm, P<0.01) and apnea. Bilateral microinjection of Kyn into the RVLM, which did not change baseline parameters,... Tipo: Info:eu-repo/semantics/article Palavras-chave: Raphe nuclei; Electrical stimulation; Ventrolateral medulla; Caudal pressor area; Excitatory amino acid receptors; Kynurenic acid; Blood pressure. Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2002001000019 Registros recuperados: 2 Primeira ... 1 ... Última

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