Regional difference in sympathetic vasoconstrictor tone in conscious rats.
نویسندگان
چکیده
منابع مشابه
Regional distribution of sympathetic vasoconstrictor tone in conscious spontaneously hypertensive rats.
An electromagnetic flow probe was chronically implanted around the common carotid, superior mesenteric, or renal artery in spontaneously hypertensive rats (SHR). An indwelling catheter was inserted into the terminal aorta for measurement of arterial pressure. Peripheral resistance was calculated by dividing arterial pressure by flow. Decrease in peripheral resistance on ganglion blockade with h...
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The primary objective of this study was to ascertain whether resting coronary blood flow is under tonic restraint due to sympathetically mediated alpha-adrenergic coronary vasoconstriction. To accomplish this, we first developed and verified a technique for selectively sympathectomizing the posterior region of the canine left ventricle. This technique entailed the topical application of phenol ...
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The Relationship of Intracellular Depolarization Rates and Contractility in the Dog Ventricle in Situ: Effects of Positive and Negative Inotropic Agents. JACK K. PRUETT AND EUGENE F. WooDs 1 Calcium Movements in Resting and Stimulated Isolated Rabbit Atria. DAVID G. TEIGER AND ALFRED FARAH 8 Studies on the Cardiovascular Effects of Synthetic Vasopressin. JIR0 NAKANO 19 A New Anorexic Agent, Wy-...
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To test the hypothesis that the hypotensive action of urapidil is in part related to a direct action on the brain, the central (intracerebroventricular) and peripheral (intravenous) effects of urapidil were studied and compared with those obtained with clonidine and prazosin. All studies were conducted in conscious, chronically instrumented stroke-prone spontaneously hypertensive rats (SHRSP). ...
متن کاملIs compensatory vasoconstrictor tone in the hindquarter vascular region induced by hemorrhage in conscious spontaneously hypertensive rats?
We investigated whether a compensatory vasoconstrictor action would be induced by a hypotensive intervention in the hindquarter vascular region of conscious spontaneously hypertensive rats (SHRs). Mean arterial pressure and hindquarter blood flow were recorded. After hemorrhage (withdrawing blood, 0.3 ml/100 g body weight), hindquarter resistance (HQR) was increased significantly. The decrease ...
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ژورنال
عنوان ژورنال: The Japanese Journal of Physiology
سال: 1985
ISSN: 1881-1396,0021-521X
DOI: 10.2170/jjphysiol.35.1051