Puglisi-Allegra S, Castellano C, Csányl V, Dóka A, Oliverio A
Pharmacol Biochem Behav. 1984 May;20(5):767-9. doi: 10.1016/0091-3057(84)90197-7.
Morphine, beta-endorphin and [D-Ala2, D-Leu5] enkephalin administered intracerebroventricularly exerted a protective effect on electroconvulsive shock (ECS)-induced seizures in mice. This effect was reversed by intraperitoneal injections of naltrexone. The role of mu and delta receptors in ECS-induced convulsions is discussed.