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	Provedor de dados BJMBR (5) Autor Aguiar,C.A. (1) Dall'Ago,P. (1) Damasceno,R.S. (1) De Angelis,K. (1) Dias da Silva,V.J. (1) Falquetto,B. (1) Fazan Jr.,R. (1) Irigoyen,M.C. (1) Maeda,C.Y. (1) Oliveira,P.F. (1) Ragioto,D.T. (1) Salgado,H.C. (1) Salgado,M.C.O. (1) Schaan,B.D. (1) Sobrinho,C.R. (1) Takakura,A.C. (1) Totola,L.T. (1) Wichi,R.B. (1) Zolezi,F.P. (1) Mais... Palavra-chave Chemoreflex (5) Baroreflex (4) Bezold-Jarisch reflex (3) Arterial pressure (2) 1K1C hypertension (1) AP-5 (1) Amiodarone (1) Autonomic control (1) Autonomic nervous system (1) Cardiopulmonary reflex (1) Cardiorespiratory responses (1) Excitatory amino acid receptors (1) Exercise training (1) Experimental diabetes (1) Kynureic acid (1) L-glutamate (1) NMDA receptors (1) Phrenic nerve activity (1) Sympathetic nerve activity (1) Ventrolateral medulla (1) Mais... Tipo do documento Info:eu-repo/semantics/article (3) Info:eu-repo/semantics/other (2) Ano 2011 (1) 2005 (1) 2002 (1) 1997 (2) País Brazil (5) Idioma Inglês (5)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 5 Primeira ... 1 ... Última Acute effect of amiodarone on cardiovascular reflexes of normotensive and renal hypertensive rats BJMBR Oliveira,P.F.; Dias da Silva,V.J.; Salgado,M.C.O.; Fazan Jr.,R.; Aguiar,C.A.; Salgado,H.C.. The aim of the present study was to evaluate the effect of amiodarone on mean arterial pressure (MAP), heart rate (HR), baroreflex, Bezold-Jarisch, and peripheral chemoreflex in normotensive and chronic one-kidney, one-clip (1K1C) hypertensive rats (N = 9 to 11 rats in each group). Amiodarone (50 mg/kg, iv) elicited hypotension and bradycardia in normotensive (-10 ± 1 mmHg, -57 ± 6 bpm) and hypertensive rats (-37 ± 7 mmHg, -39 ± 19 bpm). The baroreflex index (deltaHR/deltaMAP) was significantly attenuated by amiodarone in both normotensive (-0.61 ± 0.12 vs -1.47 ± 0.14 bpm/mmHg for reflex bradycardia and -1.15 ± 0.19 vs -2.63 ± 0.26 bpm/mmHg for reflex tachycardia) and hypertensive rats (-0.26 ± 0.05 vs -0.72 ± 0.16 bpm/mmHg for reflex bradycardia and... Tipo: Info:eu-repo/semantics/article Palavras-chave: Amiodarone; Baroreflex; Bezold-Jarisch reflex; Chemoreflex; Autonomic nervous system; 1K1C hypertension. Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2005000600020 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 Cardiovascular control in experimental diabetes BJMBR De Angelis,K.; Schaan,B.D.; Maeda,C.Y.; Dall'Ago,P.; Wichi,R.B.; Irigoyen,M.C.. Several studies have reported impairment in cardiovascular function and control in diabetes. The studies cited in this review were carried out from a few days up to 3 months after streptozotocin administration and were concerned with the control of the circulation. We observed that early changes (5 days) in blood pressure control by different peripheral receptors were maintained for several months. Moreover, the impairment of reflex responses observed after baroreceptor and chemoreceptor stimulation was probably related to changes in the efferent limb of the reflex arc (sympathetic and parasympathetic), but changes also in the central nervous system could not be excluded. Changes in renal sympathetic nerve activity during volume expansion were blunted in... Tipo: Info:eu-repo/semantics/article Palavras-chave: Experimental diabetes; Arterial pressure; Autonomic control; Baroreflex; Chemoreflex; Cardiopulmonary reflex; Exercise training. Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2002000900010 Central chemoreceptors and neural mechanisms of cardiorespiratory control BJMBR Takakura,A.C.; Damasceno,R.S.; Falquetto,B.; Totola,L.T.; Sobrinho,C.R.; Ragioto,D.T.; Zolezi,F.P.. The arterial partial pressure (P CO2) of carbon dioxide is virtually constant because of the close match between the metabolic production of this gas and its excretion via breathing. Blood gas homeostasis does not rely solely on changes in lung ventilation, but also to a considerable extent on circulatory adjustments that regulate the transport of CO2 from its sites of production to the lungs. The neural mechanisms that coordinate circulatory and ventilatory changes to achieve blood gas homeostasis are the subject of this review. Emphasis will be placed on the control of sympathetic outflow by central chemoreceptors. High levels of CO2 exert an excitatory effect on sympathetic outflow that is mediated by specialized chemoreceptors such as the neurons... Tipo: Info:eu-repo/semantics/article Palavras-chave: Chemoreflex; Cardiorespiratory responses; Ventrolateral medulla; Sympathetic nerve activity; Phrenic nerve activity. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2011000900009 Neural reflex regulation of arterial pressure in pathophysiological conditions: interplay among the baroreflex, the cardiopulmonary reflexes and the chemoreflex BJMBR The maintenance of arterial pressure at levels adequate to perfuse the tissues is a basic requirement for the constancy of the internal environment and survival. The objective of the present review was to provide information about the basic reflex mechanisms that are responsible for the moment-to-moment regulation of the cardiovascular system. We demonstrate that this control is largely provided by the action of arterial and non-arterial reflexes that detect and correct changes in arterial pressure (baroreflex), blood volume or chemical composition (mechano- and chemosensitive cardiopulmonary reflexes), and changes in blood-gas composition (chemoreceptor reflex). The importance of the integration of these cardiovascular reflexes is well understood and it... Tipo: Info:eu-repo/semantics/other Palavras-chave: Arterial pressure; Bezold-Jarisch reflex; Baroreflex; Chemoreflex. Ano: 1997 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1997000400014 Registros recuperados: 5 Primeira ... 1 ... Última

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