The effect of somatostatin on the response of GLI to the intraduodenal administration of glucose, protein, and fat

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Abstract
The effects of somatostatin on GLI release during the absorption of intraduodenally administered glucose, casein hydrolysate and longchain triglycerides were studied in conscious dogs. Whereas, after an intraduodenal glucose load, GLI rose promptly in saline-infused control experiments to a peak of 5 ng/ml (SEM +/- 4) in 60 minutes, significantly lower values were observed during somatostatin infusion (P less than 0.025 -- 0.05). A similar reduction in the magnitude of the GLI response to intraduodenally administered casein hydrolysate (P less than 0.05) and fat (p less than 0.05) was observed.