Prejunctional prostanoid receptors on cardiac adrenergic terminals belong to the EP3 subtype
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Presence of prejunctional D2-dopaminoceptors and α2-adrenoceptors on the cholinergic nerve of the common bile duct of guinea pig
On most adrenergic and cholinergic nerve terminals, prejunctional α-adrenoceptors belonging to the α2-subtype have been identified. Activation of these receptors will decrease the release of norepinephrine. It has been reported that several isolated tissue preparations contain prejunctional dopamine receptors, the stimulation of which inhibits neurotransmission. It has remained uncertain whethe...
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The pharmacological properties and subtypes of prostanoid receptors involved in the prejunctional modulation of [(3)H]norepinephrine release from sympathetic neurons were studied using isolated rabbit aorta. Rings preincubated with [(3)H]norepinephrine were washed with physiological salt solution that contained cocaine plus corticosterone, uptake(1) and uptake(2) inhibitors, respectively, and r...
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T he desensitization (loss of response) and downregulation (loss of receptors) of p-adrenergic receptors (,BAR) have been observed in several cardiac conditions, including certain forms of heart failure and hypertension. The inability of the failing heart to respond to inotropic agents such as catecholamines represents a major clinical problem. The downregulation of 131AR associated with certai...
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T he desensitization (loss of response) and downregulation (loss of receptors) of p-adrenergic receptors (,BAR) have been observed in several cardiac conditions, including certain forms of heart failure and hypertension. The inability of the failing heart to respond to inotropic agents such as catecholamines represents a major clinical problem. The downregulation of 131AR associated with certai...
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ژورنال
عنوان ژورنال: British Journal of Pharmacology
سال: 1991
ISSN: 0007-1188
DOI: 10.1111/j.1476-5381.1991.tb12214.x