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Received: 14 Mar, 2018 Accepted: 13 May, 2018 Abstract Background and Objectives: Ghrelin is a peptide hormone, which is secreted by stomach cells and has an important role in the metabolism and energy homeostasis. This hormone crosses the blood-brain barrier and enters the hippocampus, where it affects the learning process and memory. In the present study, the effect of intrahippocampal injection of ghrelin on morphine-induced amnesia was investigated using passive avoidance learning model in experimental male rats.

The Effect of Intrahippocampal Injection of Ghrelin on Morphine-Induced Amnesia by Passive Avoidance Task in Male Laboratory Rats