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Long-term survival in permanent middle cerebral artery occlusion: a model of malignant stroke in rats.

ABSTRACT: Occlusion of the middle cerebral artery (MCA) by an intraluminal filament is widely used to study focal brain ischemia in male Sprague-Dawley rats. However, permanent occlusion goes along with a high fatality. To overcome this drawback we designed a new filament carrying a bowling pin-shaped tip (BP-tip) and compared this with three conventionally tipped filaments. Follow-up periods were 24?h (all groups) and 72 and 120?h in BP-tip group. Ischemic damage and swelling were quantified using silver nitrate staining. Collateral flow via the posterior cerebral artery (PCA) was assessed using selective dye perfusion of the internal carotid artery. Despite a comparable decrease of brain perfusion in all groups, ischemic damage was significantly smaller in BP-tips (p?


PROVIDER: S-EPMC4916503 | BioStudies | 2016-01-01T00:00:00Z

REPOSITORIES: biostudies

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