Intraventricular cholecystokinin-octapeptide produces hyperglycemia in rats

John E. Morley, Allen S. Levine

Research output: Contribution to journalArticlepeer-review

24 Scopus citations


The effect of intraventricular cholecystokinin-octapeptide (CCK-8) on blood glucose was evaluated. Intraventricular CCK-8 in rats produces hyperglycemia. The highest dose of CCK-8 (250 ng) increased plasma glucagon levels but at lower doses (2.5 and 25 ng) increases in glucose occurred without alteration in the glucagon levels. None of the doses of CCK-8 altered insulin levels. Using 14C-glucose tracer we showed that the hyperglycemia produced by CCK-8 was not due to alterations in glucose clearance.

Original languageEnglish (US)
Pages (from-to)2187-2190
Number of pages4
JournalLife Sciences
Issue number19
StatePublished - May 11 1981


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