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Histidyl-proline diketopiperazine decreases food intake in rats
Brain Research
|April 6, 1981
Abstract:
Histidyl-proline diketopiperazine was found to suppress food intake during stress-induced eating (10(-6)--10(-8) mol), starvation-induced eating (10(-8) mol) and over an 8 h period of spontaneous eating (10(-8) mol). In contrast, other cyclic piperazines failed to alter food ingestion. The suppressive effect of histidyl-proline diketopiperazine was antagonized by the enkephalin analogue, D-Ala-Met-enkephalin, in equimolar concentrations.