Abstract: AIM: To study the protective effects of nimodipine liposomes for injection (NDLI) on injuries of total cerebral ischemia/reperfusion(I/R) in rats and anoxia in mice.METHODS: Acute anoxia in mice was produced by hypoxia under normal pressure and decapitation.In these two models the survival time and persistent time of gasping were observed.Ameliorated pulsinelli four-vessel occlusion method was used to make global brain ischemia model.The EEG, the time of righting reflex recovery and Evans blue content in the homogenate of the brain tissues were recorded.RESULTS: NDLI obviously prolonged the survival time and persistent time of gasping in mice subjected to acute anoxia, remarkably shortened the time of EEG recovery and righting reflex recovery, and reduced Evens blue content in the homogenate.CONCLUSION: NDLI has significantly protective effects on injuries of total cerebral I/R and anoxia.

Key words: nimodipine liposomes for injection, four-vessel occlusion, cerebral ischemia/reperfusion, cerebral anoxia, Evans blue