Netrin-1 overexpression improves neurobehavioral outcomes and reduces infarct size via inhibition of the notch1 pathway following experimental stroke.

Stroke is a leading cause of morbidity and mortality worldwide. Administration of Netrin-1 during the peri-infarct period has been shown to decrease infarct size in rats; however, the underlying mechanism is unclear. We addressed this question in the present study by inducing stroke in rats via middle cerebral artery occlusion (MCAO), and evaluating the effects of Netrin-1 treatment by neurobehavioral testing, immunocytochemistry, and western blotting. Netrin-1 overexpression increased neurobehavioral test scores and reduced cerebral infarct volume following MCAO via inhibition of the Notch1 signaling pathway. These results demonstrate that early administration of Netrin-1 can is an effective therapeutic approach for improving outcome after stroke. © 2017 Wiley Periodicals, Inc.

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