... to drinking water. autonomic nervous system baroreceptors blood pressure heart rate. The Biochemical Society and the Medical Research Society © 2002 2002 30 10 2001 30 1 2002 22 4 2002 Correspondence : Dr H. Routledge (e-mail [email protected]) . 157Clinical...

... of controversy. If there is a major contribution of baroreflexes to RSA, cardiocirculatory coupling during breathing and during cyclic baroreflex stimulation should show similarities. We applied a sinusoidal stimulus to the carotid baroreceptors and generated heart rate fluctuations of the same magnitude as RSA...

...John E. SANDERSON; Leata Y. YEUNG; Skiva CHAN; Brian TOMLINSON; Richard KAY; Kam S. WOO; Luciano BERNARDI Although β-adrenoreceptor antagonists appear to be beneficial in chronic heart failure there is little information on their effects on autonomic and baroreceptor function which may have...

... aldosterone autonomic nervous system baroreceptors blood pressure heart failure heart rate 687Clinical Science (1998) 95, 687 692 (Printed in Great Britain) Aldosterone blunts the baroreflex response in man K. M. YEE and A. D. STRUTHERS University Department of Clinical Pharmacology and Therapeutics...

... cardiomyopathy was associated with both syncope and exercise hypotension. 20 11 1997 26 11 1997 © 1998 The Biochemical Society and the Medical Research Society 1998 baroreceptors hypertrophic cardiomyopathy venous capacitance Clinical Science (1998) 94,339-346 (Printed in Great...

... increased by about 50%. Clearances of both noradrenaline and adrenaline decreased. 5. The results are consistent with the view that selective deactivation of cardiopulmonary baroreceptors during low-intensity lower body negative pressure increases sympathoneural traffic to forearm skeletal muscle...

... responses of blood pressure, heart rate and cardiac output to head-up tilting were determined in 67 patients using entirely ‘non-invasive’ methods. In some patients we also studied the immediate response of pulse interval to carotid baroreceptor stimulation by neck suction. 3. Two of the patients developed...

... during the low sodium diet. 4. High potassium intake improved baroreceptor function as revealed by the greater decrease in heart rate for a given rise in pressure after noradrenaline infusion. 5. The results of this study are compatible with a protective effect of a practicable low sodium/high potassium...

... of noradrenaline were not related to baroreflex sensitivity, age, or resting blood pressure. 5. It is possible that the rise in both plasma noradrenaline and arterial blood pressure produced by exercise is controlled by the baroreceptor reflexes; these are less effective in hypertensive subjects and thus...

... and the Medical Research Society 1979 baroreceptors blood pressure brain catecholamines Clinical Science (1979) 57,221s-223s Effect of baroreceptor deafferentation on central catecholamines in the rat M A R G A R E T A. PETTY*, J . P. C H A L M E R S t , M. BROWN A N D J . L. R E I D * Department...

... tilting is mainly due to sino-aortic reflexes, whereas vagal reflexes are mostly responsible for the postural increase in renin release. © 1978 The Biochemical Society and the Medical Research Society 1978 baroreceptors cat postural reactions renal nerves renin sympathetic nervous system...

.... The bradycardic response to increase in carotid sinus transmural pressure was reduced at various times after the commencement of handgrip at 45 and 65% of maximum voluntary contraction. 4. It is concluded that a reduction in arterial baroreceptor reflex sensitivity does not play an important role...

... developed from the moment of onset of the exertion. 3. The response of heart interval to decrease in carotid sinus transmural pressure was much less consistently affected by hand-grip exercise. baroreceptors blood pressure carotid sinus exercise hand-grip heart rate pressoreceptors 17 3...

...Jennifer E. Angell-James; M. J. George 1. Hypertension was produced experimentally in three groups of rabbits by atherosclerosis, medial sclerosis and renal encapsulation. 2. The sensitivity of afferent baroreceptor fibre recordings, obtained from an isolated perfused aortic arch preparation...

...I. M. James; Lindsay A. MacDonell 1. Ten experiments, each using two dogs, were performed to evaluate the effect of chemoreceptor and baroreceptor activity on the cerebral circulation. 2. The carotid bifurcation areas were vascularly isolated bilaterally and perfused with arterial blood from...

... aorta. 2. The stimulus-response curve (defined by measuring the mean impulse frequency at various pressures) from both nerves was S-shaped; the curve for the aortic nerve was shifted to the right of the sinus nerve curve. 3. In the dog, the aortic arch baroreceptors act predominantly as an anti...

..., but selectively directed to different circulatory levels in relation to the stimulus at work; cardiac sympathetic stimulation or inhibition has opposite effects on the repolarization phase. Key words : baroreceptors, cardiac inotropic state. Introduction The human electrocardiogram may be altered by sympathetic...