title: [Central pharmacological effects of YPG-209 (16(S)-methyl-20-methoxy-prostaglandin E2) (author's transl)].
abstract: Central pharmacological effects of YPG-20 were examined in comparison with those of PGE2 (prostaglandin E2). Spontaneous motor activity and exploratory movement in mice were inhibited by oral administration of YPG-209 in a dose of 10 micrograms/kg. These inhibitions seemed to involve factors different from those related to the central nervous system, e.g. intestinal movement. Thiopental-induced sleeping time in mice was prolonged by oral administration of YPG-209 in a dose of 300 micrograms/kg. On the other hand, spontaneous EEG and EEG arousal response in gallamine-immobilized cats were not affected by intravenous administration of YPG-209 in a dose of 100 micrograms/kg. Mice taming effect, rota rod performance and drug- or electroshock-induced convulsions were not affected by oral administration of YPG-209 in a dose of 3 mg/kg. Methamphetamine-induced lethality in mice was inhibited by subcutaneous administration of YPG-209 in a dose of 5 mg/kg. Normal rectal temperature in mice was lowered by oral administration of YPG-209 in a dose of 5 mg/kg. Normal rectal temperature in mice was lowered by oral administration of YPG-209 in a dose of 100 micrograms/kg. The central pharmacological actions of PGE2 were qualitatively similar to those of YPG-209, but the potencies of central actions of PGE2 were less than those of YPG-209
mesh_terms: D000818:Animals; D001831:Body Temperature / Q000187:drug effects; D001921:Brain / Q000187:drug effects*; D002415:Cats; D015232:Dinoprostone / Q000031:analogs & derivatives*; D004357:Drug Synergism; D004569:Electroencephalography; D004597:Electroshock; D005106:Exploratory Behavior / Q000187:drug effects; D005260:Female; D008297:Male; D008694:Methamphetamine / Q000037:antagonists & inhibitors; D051379:Mice; D009043:Motor Activity / Q000187:drug effects; D011458:Prostaglandins E / Q000494:pharmacology; D011459:Prostaglandins E, Synthetic / Q000494:pharmacology*; D012890:Sleep / Q000187:drug effects; D013874:Thiopental / Q000494:pharmacology
chemical_list: D011458:Prostaglandins E; D011459:Prostaglandins E, Synthetic; D008694:Methamphetamine; C026720:16-methyl-20-methoxy-PGE2; D013874:Thiopental; D015232:Dinoprostone