Influence of cholecystokinin octapeptide sulfate ester on brain monoamine metabolism in rats

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Abstract
The effects of intracerebroventricular administration of an 80 pmole dose of cholecystokinin octapeptide sulfate ester (CCK-8-SE) were tested on the dopamine (DA), norepinephrine (NE) and serotonin (5-HT) turnovers of the hypothalamus, mesencephalon, amygdala, septum, striatum and cerebral cortex in rats. CCK-8-SE in an 80 pmole dose decreased the DA turnovers of the hypothalamus, mesencephalon, amygdala and septum, while it increased that of the striatum. The NE turnovers were increased in the hypothalamus and amygdala, but decreased in the striatum. The 5-HT turnover decreased only in the hypothalamus.
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