Alpha Adrenoceptor Subtypes Responsible for Dopamine-lnduced Mesenteric Vein Contraction
نویسندگان
چکیده
منابع مشابه
Adrenoceptor study of guinea-pig superior mesenteric--portal vein.
INTRODUCTION Vasoactive agents have been extensively studied in precapillary resistance vessels but little emphasis has been directed to their effect on the venous system even though veins are probably important in governing haemodynamics. Approximately half the blood volume lies within the venous system, therefore a doubling in venous tone could increase the circulating volume by 25% and conve...
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The effect of specific alpha[ or alpha2 adrenoceptor agents on the response of rat superior mesenteric-portal vein to field stimulation was investigated. In. a dose related manner, phenylephrine (alpha[ agonist) and yohimbine (alpha2 antagonists) increased while prazosin (alpha[ antagonist) and clonidine (alpha2 agonist) decreased the response of the vein to field stimulation. These effects are...
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ژورنال
عنوان ژورنال: Japanese Journal of Pharmacology
سال: 1984
ISSN: 0021-5198
DOI: 10.1016/s0021-5198(19)53316-9