Journal
NEURAL REGENERATION RESEARCH
Volume 11, Issue 5, Pages 745-751Publisher
MEDKNOW PUBLICATIONS & MEDIA PVT LTD
DOI: 10.4103/1673-5374.182700
Keywords
nerve regeneration; cerebral ischemia; bumetanide; Na+-K+-2Cl(-) cotransporter 1; hippocampal dentate gyrus; neurogenesis; neural precursor cells; dendritic development; cognitive function; neural regeneration
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Bumetanide has been shown to lessen cerebral edema and reduce the infarct area in the acute stage of cerebral ischemia. Few studies focus on the effects of bumetanide on neuroprotection and neurogenesis in the chronic stage of cerebral ischemia. We established a rat model of cerebral ischemia by injecting endothelin-1 in the left cortical motor area and left corpus striatum. Seven days later, bumetanide 200 mu g/kg/day was injected into the lateral ventricle for 21 consecutive days with a mini-osmotic pump. Results demonstrated that the number of neuroblasts cells and the total length of dendrites increased, escape latency reduced, and the number of platform crossings increased in the rat hippocampal dentate gyrus in the chronic stage of cerebral ischemia. These findings suggest that bumetanide promoted neural precursor cell regeneration, dendritic development and the recovery of cognitive function, and protected brain tissue in the chronic stage of ischemia.
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