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[Development of new methods in suppressing brain infarction--combined administration of mannitol and
Abstract:
Various therapeutic methods have been attempted for cerebral infarction, but the development of more effective methods is still awaited. We have investigations of the effect of mannitol in preventing the development of cerebral infarction and have reported it effects in clinical cases of operated cerebral aneurysms. In recent years, our attention has been drawn to the so-called red cell substitute, perfluorochemicals (FC), which has a high oxygen-carrying capacity and a small particle less than 0.1 mu. In the present studies, using infarction models in dogs which have previously developed and reported, observations are made on the recovery of brain electrical activity in sever ischemia, suppressing brain swelling following recirculation of cerebral blood flow and protection upon the hemorrhagic brain infarction, due to administration of mannitol or FC. These experimental results indicate that the combined administration of mannitol and FC is effective in protecting the brain from cerebral ischemia.
Insights
Mannitol and perfluorochemicals (FC) show promise in protecting the brain from cerebral ischemia. Combined administration effectively aids recovery of brain electrical activity and reduces swelling in infarction models.
Area of Science:
- Neuroscience
- Biomedical Engineering
- Pharmacology
Context:
- Cerebral infarction presents a significant therapeutic challenge with ongoing needs for improved treatments.
- Previous research explored mannitol for cerebral infarction and its effects in cerebral aneurysm cases.
- Perfluorochemicals (FCs), acting as red blood cell substitutes, possess high oxygen-carrying capacity and nanoscale particle size.
Purpose:
- To investigate the neuroprotective effects of mannitol and perfluorochemicals (FCs) in canine models of cerebral infarction.
- To evaluate the efficacy of combined mannitol and FC administration in mitigating ischemic brain injury.
Summary:
- Studies utilized established canine infarction models to assess recovery of brain electrical activity during severe ischemia.
- Observations focused on suppressing brain swelling post-cerebral blood flow recirculation and protecting against hemorrhagic brain infarction.
- The administration of mannitol or FC, individually and in combination, was examined for its protective impact.
Impact:
- Experimental results indicate that the synergistic administration of mannitol and FC offers significant protection to the brain against cerebral ischemia.
- This combined approach demonstrates potential for enhancing therapeutic strategies for ischemic stroke.
- Further research may validate these findings for clinical application in managing cerebral infarction.