期刊
JOURNAL OF CLINICAL NEUROSCIENCE
卷 19, 期 6, 页码 866-872出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.jocn.2011.08.038
关键词
Anti-TNF-alpha monoclonal antibody; Apoptosis; Subarachnoid hemorrhage; Tumor necrosis factor-alpha
资金
- Science and Technology Development Projects of Jinan [200807032]
Recent studies have emphasized the importance of apoptosis in subarachnoid hemorrhage (SAH) and the subsequent early brain injury. However, the apoptotic pathways induced by SAH in different brain regions are not fully understood. We investigated gene expression levels of classical apoptosis-related molecules (caspase-3, bax, and bcl-2) following SAH in the hippocampus of male Wistar rats. Temporally specific changes were found in caspase-3 and bax messenger RNA only. Interestingly, we found increased expression of bax, but not caspase-3, in the prefrontal cortex, which indicates different molecular mechanisms of apoptosis in distinct brain regions. Most important, changes in expression were reversed by functional blockade of tumor necrosis factor-alpha, which has a critical role in brain injury. In addition, we found that apoptosis induced by SAH may be associated with a relative elevation of pro-brain derived neurotrophic factor. (C) 2011 Elsevier Ltd. All rights reserved.
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