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	Provedor de dados BJMBR (3) Autor Albuquerque,J.A. (1) Andreatta-Van Leyen,S. (1) Araujo,G.C. (1) Cabral,A.M.S. (1) Campos,R.R. (1) Guertzenstein,P.G. (1) Lacerda,J.E.C. (1) Lahlou,S. (1) Lopes,O.U. (1) Monteiro,F.M.F. (1) Mais... Palavra-chave Conscious rats (3) Anesthesia (1) Baroreflex sensitivity (1) Blood pressure (1) Exercise (1) GABA (1) Iliac blood flow (1) Intrauterine and postnatal malnutrition (1) Multideficient diet (1) RVLM (1) Renal blood flow (1) Ultrasonic transit-time (1) Vasomotor tone (1) Ventrolateral medulla (1) Mais... Tipo do documento Info:eu-repo/semantics/article (2) Info:eu-repo/semantics/other (1) Ano 2003 (1) 2001 (1) 1997 (1) País Brazil (3) Idioma Inglês (3)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Cardiovascular responses to microinjections of GABA or anesthetics into the rostral ventrolateral medulla of conscious and anesthetized rats BJMBR Lacerda,J.E.C.; Campos,R.R.; Araujo,G.C.; Andreatta-Van Leyen,S.; Lopes,O.U.; Guertzenstein,P.G.. The rostral ventrolateral medulla (RVLM) contains neurons involved in tonic and reflex control of arterial pressure. We describe the effects of gamma-aminobutyric acid (GABA) and anesthetics injected into the RVLM of conscious and urethane (1.2 g/kg, iv) anesthetized Wistar rats (300-350 g). In conscious rats, bilateral microinjection of GABA (50 nmol/200 nl) induced a small but significant decrease in blood pressure (from 130 ± 3.6 to 110 ± 5.6 mmHg, N = 7). A similar response was observed with sodium pentobarbital microinjection (24 nmol/200 nl). However, in the same animals, the fall in blood pressure induced by GABA (from 121 ± 8.9 to 76 ± 8.8 mmHg, N = 7) or pentobarbital (from 118 ± 4.5 to 57 ± 11.3 mmHg, N = 6) was significantly increased after... Tipo: Info:eu-repo/semantics/article Palavras-chave: Vasomotor tone; Ventrolateral medulla; RVLM; GABA; Conscious rats. Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2003000900019 Influence of a multideficient diet from northeastern Brazil on resting blood pressure and baroreflex sensitivity in conscious, freely moving rats BJMBR Monteiro,F.M.F.; Lahlou,S.; Albuquerque,J.A.; Cabral,A.M.S.. The "regional basic diet" or RBD is a multideficient diet (providing 8% protein) which is known to produce dietary deficiencies in some populations in northeastern Brazil. The present study investigated the effects of RBD-induced malnutrition on resting blood pressure and baroreflex sensitivity in conscious rats. Malnourished rats were obtained by feeding dams the RBD during mating and pregnancy (RBD-1 group) or during nursing and a 10-day period after weaning (RBD-2 group). At 90 days of age, only RBD-2 rats weighed significantly (P<0.001) less than control rats born to dams fed a standard commercial diet (23% protein) during pregnancy and nursing. Baseline mean arterial pressure and heart rate of both RBD-1 and RBD-2 rats were comparable to those of... Tipo: Info:eu-repo/semantics/article Palavras-chave: Multideficient diet; Intrauterine and postnatal malnutrition; Blood pressure; Baroreflex sensitivity; Conscious rats. Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2001000200017 Validation of transit-time flowmetry for chronic measurements of regional blood flow in resting and exercising rats BJMBR The objective of the present study was to validate the transit-time technique for long-term measurements of iliac and renal blood flow in rats. Flow measured with ultrasonic probes was confirmed ex vivo using excised arteries perfused at varying flow rates. An implanted 1-mm probe reproduced with accuracy different patterns of flow relative to pressure in freely moving rats and accurately quantitated the resting iliac flow value (on average 10.43 ± 0.99 ml/min or 2.78 ± 0.3 ml min-1 100 g body weight-1). The measurements were stable over an experimental period of one week but were affected by probe size (resting flows were underestimated by 57% with a 2-mm probe when compared with a 1-mm probe) and by anesthesia (in the same rats, iliac flow was reduced by... Tipo: Info:eu-repo/semantics/other Palavras-chave: Ultrasonic transit-time; Iliac blood flow; Renal blood flow; Exercise; Anesthesia; Conscious rats. Ano: 1997 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1997000700013 Registros recuperados: 3 Primeira ... 1 ... Última

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