It was demonstrated that the secretion of parotid saliva is evoked by the administration of dopamine into the rabbit. The response was dose-dependent in the secretory rate. In addition, the dopamine-evoked parotid saliva was not inhibited by rising the dose of priscol or propranolol. Whereas, the dopamine-evoked parotid saliva was nearly blocked by chlorpromazine or haloperidol. From the above mentioned results, we suggested that the specific dopamine receptor may be present in the rabbit parotid gland.
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