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Evaluation of the sequence method as a tool to assess spontaneous baroreflex in reptiles
(2019-01-01)
The sequence method is an alternative to the traditional pharmacological approach (i.e., the Oxford technique) used to calculate baroreflex gain (G) in mammals. Although the sequence method assesses baroreflex by measuring ...
The baroreflex in aquatic and amphibious teleosts: Does terrestriality represent a significant driving force for the evolution of a more effective baroreflex in vertebrates?
(2021-05-01)
All vertebrates have baroreflexes that provide fast regulation of arterial blood pressure (PA) to maintain adequate tissue perfusion and avoid vascular lesions from excessive pressures. The baroreflex is a negative feedback ...
Temperature effects on baroreflex control of heart rate in the toad, Rhinella schneideri
(2015)
For an adequate blood supply to support metabolic demands, vertebrates regulate blood pressure to maintain sufficient perfusion to avoid ischemia and other tissue damage like edema. Using a pharmacological approach ...
Effect of acute restraint stress on the tachycardiac and bradycardiac responses of the baroreflex in rats
(TAYLOR & FRANCIS LTD, 2010)
In the present study, we evaluated cardiac baroreflex responses of rats submitted to acute restraint stress. The baroreflex was tested: immediately before, during a 30 min exposure to restraint stress, as well as 30 and ...
High-Pass Filter Characteristics of the Baroreflex - A Comparison of Frequency Domain and Pharmacological Methods
(Public Library Of Science, 2013-11)
Pharmacological methods to assess baroreflex sensitivity evoke supra-physiological blood pressure changes whereas computational methods use spontaneous fluctuations of blood pressure. The relationships among the different ...
The variability of baroreflex sensitivity in juvenile, spontaneously hypertensive rats
(CLINICS CARDIVE PUBL PTY LTD, 2011)
In this study the baroreflex sensitivity of conscious, juvenile, spontaneously hypertensive rats (SHRs) was compared. The study population consisted of 19 eight-week-old male SHRs. The baroreflex sensitivity was quantified ...
STRAIN DIFFERENCES in BAROCEPTOR REFLEX in ADULT WISTAR KYOTO RATS
(Hospital Clinicas, Univ São Paulo, 2010-02-01)
OBJECTIVES: 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. Our study ...
Lateral septal area alpha(1)-and alpha(2)-adrenoceptors differently modulate baroreflex activity in unanaesthetized rats
(Wiley-Blackwell, 2012-09-01)
The lateral septal area (LSA) is a limbic structure involved in autonomic, neuroendocrine and behavioural responses. An inhibitory influence of the LSA on baroreflex activity has been reported; however, the local ...
Lateral septal area alpha(1)-and alpha(2)-adrenoceptors differently modulate baroreflex activity in unanaesthetized rats
(Wiley-Blackwell, 2012-09-01)
The lateral septal area (LSA) is a limbic structure involved in autonomic, neuroendocrine and behavioural responses. An inhibitory influence of the LSA on baroreflex activity has been reported; however, the local ...