منابع مشابه
Endothelium-dependent responses of cerebral blood vessels during chronic hypertension.
Acetylcholine produces less dilatation of pial arterioles in stroke-prone spontaneously hypertensive rats (SHRSP) than in normotensive (WKY) rats. Responses of cerebral vessels to acetylcholine and bradykinin appear to involve different mechanisms. Our first goal was to determine whether responses of pial arterioles to bradykinin are impaired in SHRSP. Diameter of pial arterioles (20-60 microns...
متن کاملA Comparison of Cerebral and Extracerebral Blood Vessels
The number of adrenergic nerves was quantified, on both cerebral and femoral blood vessels. No difference was found between the two vascular beds. The data failed to establish a "richer" innervation of cerebral vessels. This is in agreement with my previous, extensive, subjective and unpublished impression. Consequently, the suggestion of others, which ascribes certain features of cerebrovascul...
متن کاملRole of Local Nerves and Prostaglandins in Regulation of Basal Blood Flow and Hypercapnic Vasodilatation of Cerebral Blood Vessels in the Rabbit
The mechanisms underlying cerebral vasodilatation during hypercapnia are not fully understood. To examine the role of nerves and prostaglandins in the regulation of basal blood flow and in hypercapnia-induced vasodilatation in the cerebral blood vessels of rabbit.Cerebral blood flow was measured by laser Doppler flow-meter in 18 NZW rabbits anesthetized with sodium pentobarbital. Tetrodetoxin ...
متن کاملRole of Nitric Oxide and ATP-Sensitive K+ Channels in Regulation of Basal Blood Flow and Hypercapnic Vasodilatation of Cerebral Blood Vessels in Rabbit
Background: The mechanisms underlying cerebral hypercapnic vasodilatation are not fully understood. Objective: To investigate the role of nitric oxide (NO) and ATP-sensitive potassium (KATP) channels in basal blood flow regulation and hypercapnia-induced vasodilatation in rabbit cerebral blood vessels. Methods: The change in cerebral blood flow was measured by a laser Doppler flowmeter in 18 Ne...
متن کاملThe Localization of Alkaline Phosphatase Activity in Cerebral Blood Vessels.
Since the development of the first histochemical techniques for demonstrating non-specific alkaline phosphatase activity (Gomori, 1939; Takamatsu, 1939) there have been a number of reports of activity in the endothelium of blood vessels of the mammalian nervous system. Differences in the site and intensity of endothelial staining in the nervous systems of different species have been described b...
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ژورنال
عنوان ژورنال: The Journal of Japan Atherosclerosis Society
سال: 1979
ISSN: 0386-2682,2185-8284
DOI: 10.5551/jat1973.6.4_395