期刊
JOURNAL OF CLINICAL NEUROSCIENCE
卷 15, 期 6, 页码 672-678出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jocn.2007.06.014
关键词
apoptosis; Ac-DMQD-CHO; caspase; caspase-3 inhibitor; programmed cell death; spinal cord injury
We investigated the therapeutic efficacy of Ac-DMQD-CHO, a caspase-3 inhibitor, and functional recovery in spinal cord injury in a rat model. Thirty rats were randomized into three groups of 10 each. In groups 2 and 3, spinal cord trauma was produced in the thoracic region. Group 3 rats were treated with Ac-DMQD-CHO. Treatment responses were evaluated based on histopathological and TUNEL staining findings at 24 h and 5 days post-injury. Neurologic performance was assessed during and following treatment. Twenty-four hours after injury, light microscopy examination revealed diffuse hemorrhagic necrosis, edema, vascular thrombi, and polymorphonuclear leukocyte infiltration in group 2 and 3 rats, but cavitation and demyelinization were less prominent in group 3. At this time point, treatment of the rats with Ac-DMQD-CHO significantly reduced the number of apoptotic cells. Traumatic injury to the spinal cord causes apoptosis and administration of Ac-DMQD-CHO decreases apoptosis and improves functional outcome. (C) 2007 Elsevier Ltd. All rights reserved.
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