title: Bumetanide promotes neural precursor cell regeneration and dendritic development in the hippocampal dentate gyrus in the chronic stage of cerebral ischemia.
abstract: 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 µg/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.
authors.affiliation: Department of Neurology, First Affiliated Hospital of China Medical University, Shenyang, Liaoning Province, China; Neuroinfection and Neuroimmunology Center, Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
authors.forename: Wang-Shu
authors.identifier: 0000-0002-4746-2064
authors.initials: WS
authors.lastname: Xu
authors.affiliation: Department of Interventional Neuroradiology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
authors.forename: Xuan
authors.initials: X
authors.lastname: Sun
authors.affiliation: Department of Neurology, First Affiliated Hospital of China Medical University, Shenyang, Liaoning Province, China; Department of Neurology, Benxi Central Hospital of China Medical University, Benxi, Liaoning Province, China.
authors.forename: Cheng-Guang
authors.initials: CG
authors.lastname: Song
authors.affiliation: Department of Neurology, First Affiliated Hospital of China Medical University, Shenyang, Liaoning Province, China.
authors.forename: Xiao-Peng
authors.initials: XP
authors.lastname: Mu
authors.affiliation: Department of Medical Genetics, School of Basic Medicine, Peking University, Beijing, China.
authors.forename: Wen-Ping
authors.initials: WP
authors.lastname: Ma
authors.affiliation: Neuroinfection and Neuroimmunology Center, Department of Neurology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China.
authors.forename: Xing-Hu
authors.initials: XH
authors.lastname: Zhang
authors.affiliation: Department of Neurology, First Affiliated Hospital of China Medical University, Shenyang, Liaoning Province, China.
authors.forename: Chuan-Sheng
authors.initials: CS
authors.lastname: Zhao
keywords: Na+-K+-2Cl- cotransporter 1; bumetanide; cerebral ischemia; cognitive function; dendritic development; hippocampal dentate gyrus; nerve regeneration; neural precursor cells; neural regeneration; neurogenesis