The effects of intraperitoneal and intracerebroventricular administration of mu- and delta- selective opioid receptor agonists (DAGO and DPDPE, respectively) on gastric lesions, were investigated in cold-restraint-stressed rats. DAGO and DPDPE, peripherally and centrally administered, induced a significant gastric protection. Naloxone prevented the effects of both opioids whereas naltrindole prevented the gastric protection induced by DPDPE but not that by DAGO. The results suggest that mu- and delta-opioid agonists prevent gastric damage induced by stress through an involvement of both central and peripheral mu- and delta-opioid receptor subtypes.
Titolo: | Prevention of stress-induced gastric ulcers by mu- and delta-opioid agonists in the rat. | |
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Data di pubblicazione: | 1993 | |
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Handle: | http://hdl.handle.net/20.500.11769/14826 | |
Appare nelle tipologie: | 1.1 Articolo in rivista |