Effects of BMY-21502 on anoxia in mice.
Jpn J Pharmacol
; 61(3): 157-63, 1993 Mar.
Article
de En
| MEDLINE
| ID: mdl-8483292
ABSTRACT
The protective effects of BMY-21502 (1-[[1-[2-(trifluoromethyl)-4-pyrimidinyl]-4-piperidinyl]methyl]-2- pyrrolidinone) against cerebral anoxia were investigated using various models in mice, in comparison with those of other cerebroactive drugs. Oral administration of BMY-21502 (10-100 mg/kg) significantly prolonged the survival time in KCN (2.4 mg/kg, i.v.)-induced anoxia. Oxiracetam and idebenone exerted similar but weak protection at doses above 100 mg/kg, p.o. and only at a dose of 100 mg/kg, p.o., respectively. Significant protection by BMY-21502 against moderate hypobaric hypoxia was observed at doses of 30 and 100 mg/kg, p.o. Idebenone (100 and 300 mg/kg, p.o.) significantly prolonged the survival time of mice in this model, but oxiracetam (30-300 mg/kg, p.o.) did not. Oral administration of all of these drugs (BMY-21502, 3-300 mg/kg; Oxiracetam, 100-1000 mg/kg; Idebenone, 100-1000 mg/kg) failed to increase the number of gasps and the duration of gasping in the decapitated head of mice as a complete ischemic model. The anti-anoxic effect of BMY-21502 in the KCN-anoxia model was blocked by pretreatment with scopolamine. These findings suggest that BMY-21502 has an anti-anoxic action superior to those of the other cerebroactive drugs used, and activation of the CNS cholinergic system is involved as one of the causative mechanisms for the anti-anoxic effect of BMY-21502.
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Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Psychoanaleptiques
/
Pyrimidines
/
Pyrrolidones
/
Hypoxie cérébrale
Type d'étude:
Etiology_studies
/
Prognostic_studies
Limites:
Animals
Langue:
En
Journal:
Jpn J Pharmacol
Année:
1993
Type de document:
Article
Pays d'affiliation:
Japon