Central serotonin receptors and delayed gastric emptying in non-ulcer dyspepsia.
1992
OBJECTIVE--To determine whether central serotonin receptors are involved in the pathophysiology of non-ulcer dyspepsia. DESIGN--Between subjects study of solid phase gastric emptying and prolactin response to buspirone challenge. SUBJECTS--12 patients fulfilling criteria for non-ulcer dyspepsia and 12 age and sex matched controls. MAIN OUTCOME MEASURES--Solid phase gastric emptying measured by scintigraphic assessment of the movement of a standard meal labelled with technetium-99m and indium-111; responsiveness of central serotonin 1A receptors measured by the prolactin release following challenge with oral buspirone 60 mg. RESULTS--Solid phase gastric emptying was significantly delayed in the patients with non-ulcer dyspepsia (t 1/2 = 90.6 (SD 14.5) minutes in patients and 54.6 (10.7) minutes in controls; 95% confidence interval 24.7 to 46.7 minutes, p
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