Dopamine receptor subtypes that induce hyperactive urinary bladder response in anesthetized rats.

H Kontani; T Inoue; T Sakai

doi:10.1254/jjp.54.482

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Dopamine receptor subtypes that induce hyperactive urinary bladder response in anesthetized rats.

H Kontani·T Inoue·T Sakai

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Abstract

In anesthetized rats, SKF 38393 (10 mg/kg, i.v.) did not facilitate urinary bladder motility, but bromocriptine (BR, 5 mg/kg, i.v.) alone and the combination of BR (1 mg/kg, i.v.) and SKF 38393 (1 mg/kg, i.v.) induced a hyperactive bladder response (HBR). Both HBR induced by BR alone or BR and SKF 38393 combined was suppressed by SCH 23390, sulpiride or haloperidol. These results indicate that HBR is mediated by the activation of D-2 receptors, and the effects of D-2 agonists on bladder motility are potentiated by the simultaneous stimulation of D-1 receptors.

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2,3,4,5-Tetrahydro-7,8-dihydroxy-1-phenyl-1H-3-benzazepine Anesthesia Animals Bromocriptine Drug Synergism Male Muscle Contraction Rats Rats, Inbred Strains Receptors, Dopamine Urinary Bladder Journal Article

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H Kontani, T Inoue, T Sakai. 1990. Dopamine receptor subtypes that induce hyperactive urinary bladder response in anesthetized rats.. https://doi.org/10.1254/jjp.54.482

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