Does active coping suppress baroreceptor reflex sensitivity?
نویسندگان
چکیده
منابع مشابه
Centrally infused bradykinin increases baroreceptor reflex sensitivity.
Kinins are present in the central nervous system, and central administration of bradykinin increases blood pressure and heart rate. In this study, we determined the effect of intracerebroventricular infusion of bradykinin on the baroreceptor reflex of conscious rats. Male Wistar rats were anesthetized with thiobarbital (40 mg/kg i.p.), and chronic intracerebroventricular cannulas (25 gauge) wer...
متن کاملAssessment of baroreceptor reflex sensitivity by means of spectral analysis.
A method of determining baroreceptor reflex sensitivity is proposed that is based on spectral analysis of systolic pressure values and RR interval times, namely, the modulus (or gain) in the mid frequency band (0.07-0.14 Hz) between these two signals. Results using this method were highly correlated (0.94; n = 8) with results of the phenylephrine method. In addition, compared with the values fo...
متن کاملBaroreceptor reflex function.
THE IMPORTANCE of the baroreceptor reflex is to stabilize perfusion pressure in the face of disturbances of circulatory homeostasis. This is achieved by a number of neuronal (8, 29, 37, 48) and humoral (37, 45, 46) regulatory adjustments. These adjustments are initiated by a change in the pressure load at specialized pressure sensors located at the aortic arch and the carotid sinuses. Especiall...
متن کاملRoles of Arterial Baroreceptor Reflex During Bezold-Jarisch Reflex
Among the many cardiopulmonary reflexes, this review specifically examines the roles of the arterial baroreflex during the Bezold-Jarisch reflex (BJR). Activation of cardiopulmonary vagal afferent C-fibers induces hypotension, bradycardia, and apnea, which are known collectively as the BJR; myocardial ischemia and infarction might induce the BJR. Arterial baroreflex has been established as an i...
متن کاملA Molecular Sensor for the Baroreceptor Reflex?
The reflex that provides rapid neural control of blood pressure is triggered by an unknown molecular pressure sensor. ASIC2, an ion channel in a family that includes a mechanosensor from C. elegans, is shown by Lu et al. in this issue of Neuron to be critical for this reflex in mice, perhaps because ASIC2 is the elusive pressure sensor.
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ژورنال
عنوان ژورنال: Japanese Journal of Physiological Psychology and Psychophysiology
سال: 2002
ISSN: 0289-2405
DOI: 10.5674/jjppp1983.20.1