Browsing by Subject "Baroreflex"

Now showing items 1-10 of 21

    • Adult spontaneously hypertensive rats from the same laboratory present different baroreflex gain 

      Valenti, Vitor Engrácia [UNIFESP]; Moura Filho, Oseas Florencio de [UNIFESP]; Abreu, Luiz Carlos de [UNIFESP]; Ferreira, Celso [UNIFESP] (Drunpp-sarajevo, 2011-01-01)
      Background: A subset of normotensive Sprague-Dawley rats show lower baroreflex sensitivity; however, no previous study investigated whether there are differences in baroreflex sensitivity within this subset. Thus, we ...

    • Baroreflex function in conscious rats submitted to iron overload 

      Cardoso, Leonardo Máximo; Pedrosa, Maria Lúcia Silva; Silva, Marcelo Eustáquio; Moraes, Márcio Flávio Dutra; Colombari, Eduardo [UNIFESP]; Chianca-Junior, Deoclécio Alves (Associação Brasileira de Divulgação Científica, 2005-02-01)
      Our hypothesis is that iron accumulated in tissue, rather than in serum, may compromise cardiovascular control. Male Fischer 344 rats weighing 180 to 220 g were divided into 2 groups. In the serum iron overload group (SIO, ...

    • Baroreflex Sensitivity Impairment Is Associated With Cardiac Diastolic Dysfunction in Rats 

      Mostarda, Cristiano; Moraes-Silva, Ivana Cinthya; Moreira, Edson Dias; Medeiros, Alessandra [UNIFESP]; Piratello, Aline Cristina; Consolim-Colombo, Fernanda Marciano; Caldini, Elia Garcia; Brum, Patricia Chakur; Krieger, Eduardo Moacyr; Irigoyen, Maria Claudia (Churchill Livingstone Inc Medical Publishers, 2011-06-01)
      Background: Studies have shown that the autonomic dysfunction accompanied by impaired baroreflex sensitivity was associated with higher mortality. However, the influence of decreased baroreflex sensitivity on cardiac ...

    • Bradykinin microinjection in the paratrigeminal nucleus triggers neuronal discharge in the rat rostroventrolateral reticular nucleus 

      Caous, Cristofer André [UNIFESP]; Balan, Antonio Claudir [UNIFESP]; Lindsey, Charles Julian [UNIFESP] (Natl Research Council Canada, 2004-07-01)
      A small collection of neurons in the dorsal lateral medulla, the paratrigeminal nucleus (Pa5), projects directly to the rostroventrolateral reticular nucleus (RVL). Bradykinin (BK) microinjections in the Pa5 produce marked ...

    • Caracterização dos efeitos da exposição aos componentes do cigarro sobre o controle neural do sistema cardiovascular em ratos normotensos e ratos espontaneamente hipertensos 

      Valenti, Vitor Engrácia [UNIFESP] (Universidade Federal de São Paulo (UNIFESP), 2011-06-29)
      Objectives: To evaluate the effects of sidestream cigarette smoke (SSCS) on neural control of cardiovascular system in normotensive and spontaneously hypertensive rats (SHR). Method: Wistar, Wistar-Kyoto rats (WKY) and SHR ...

    • Cardiovascular and baroreceptor functions of the paratrigeminal nucleus for pressor effects in non-anaesthetized rats 

      Sousa, L. O. [UNIFESP]; Lindsey, Charles Julian [UNIFESP] (Elsevier B.V., 2009-05-11)
      Located in the lower brainstem, the paratrigeminal nucleus (Pa5) is related to cardiorespiratory autonomic reflex functions. To characterize the structures' role in blood pressure regulation and baroreflex response, both ...

    • Cardiovascular autonomic dysfunction in non-obese diabetic mice 

      Moraes, Oscar A.; Colucci, Juliana A. [UNIFESP]; Souza, Leandro E.; Scapini, Katia B.; Moraes-Silva, Ivana C.; Mostarda, Cristiano; De Angelis, Katia; Casarini, Dulce E. [UNIFESP]; Irigoyen, Maria Claudia (Elsevier B.V., 2013-10-01)
      It is known that diabetes is associated with autonomic dysfunction; however, data about autonomic function in non-obese diabetic mice (NOD) remain scarce. We evaluated the autonomic profile of NOD mice. Female mice, 24-28 ...

    • Cardiovascular control in experimental diabetes 

      De Angelis, Katia; Schaan, Beatriz D'Agord; Maeda, C.y.; Dal Lago, Pedro; Wichi, Rogerio Brandao [UNIFESP]; Irigoyen, Maria Claudia [UNIFESP] (Associação Brasileira de Divulgação Científica, 2002-09-01)
      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 ...

    • CATALASE INHIBITION INTO the FOURTH CEREBRAL VENTRICLE AFFECTS BRADYCARDIC PARASYMPATHETIC RESPONSE TO INCREASE in ARTERIAL PRESSURE WITHOUT CHANGING the BAROREFLEX 

      Valenti, Vitor E. [UNIFESP]; De Abreu, Luiz Carlos; Sato, Monica A.; Fonseca, Fernando L. A.; Perez Riera, Andres R.; Ferreira, Celso [UNIFESP] (Imperial College Press, 2011-03-01)
      Exogenous catalase influences neural control of cardiovascular system; however, we do not know yet if its inhibition into the fourth cerebral ventricle (4(th) V) influences baroreflex regulation. We evaluated the effects ...

    • CENTRAL N-ACETYLCYSTEINE EFFECTS ON BAROREFLEX in JUVENILE SPONTANEOUSLY HYPERTENSIVE RATS 

      Valenti, Vitor E. [UNIFESP]; De Abreu, Luiz Carlos; Sato, Monica A.; Saldiva, Paulo H. N.; Fonseca, Fernando L. A.; Giannocco, Gisele; Riera, Andreas R. P.; Ferreira, Celso [UNIFESP] (Imperial College Press, 2011-06-01)
      In this study, we evaluated the acute effects of central NAC administration on baroreflex in juvenile SHR and Wistar Kyoto (WKY) rats. Male SHR and WKY rats (8 10 weeks old) were implanted with a stainless steel guide ...