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Centrally administered hypothalamic growth hormone-releasing factor stimulates food intake in free-feeding rats
F J Vaccarino1, D Feifel, J Rivier
1University of Toronto, Department of Psychology, Ontario, Canada.
Peptides
|January 1, 1988
Abstract:
Intracerebroventricular injections of rat hypothalamic growth hormone-releasing factor (rhGRF) were examined for effects on food intake in free-feeding rats. It was found that, in picomole doses, rhGRF had a stimulatory effect on food intake. Examination of higher doses of rhGRF revealed a decrease in the facilitatory effects and an inhibitory trend at the highest dose (4 nanomoles). The present results are consistent with previous results from our laboratory showing that central injections of rhGRF stimulate food intake in food-deprived rats.