期刊
JOURNAL OF AFFECTIVE DISORDERS
卷 120, 期 1-3, 页码 245-248出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jad.2009.04.027
关键词
Major depressive disorder; Dorsolateral prefrontal cortex; Tumour necrosis factor; Postmortem CNS
资金
- NHMRC Research Fellow [400016, 192399, 509333]
- Australian Rotary Royce Abbey Postdoctoral Fellow (Mental Illness)
- Preston and Loui Geduld
- Rebecca L. Cooper Medical Research Foundation
- Victorian State Government
Background: From Studies in the periphery, changed levels of tumour necrosis factor (TNF) have been implicated in the pathophysiology of major depressive disorders (MDD). Therefore we decided to determine whether TNF was altered in the frontal cortex (Brodmann's areas (BA) 24 and 46) from 10 subjects with MDD and 10 control subjects. Methods: Tissue homogenates were prepared from the left hemisphere and levels of TNF transmembrane (tmTNF) and TNF soluble (sTNF) forms measured by Western blots. Results: tmTNF was significantly increased in BA 46 (mean +/- SEM: 7.70 +/- 0.92 vs. 3.18 +/- 0.87 Ratio Internal Control, p<0.001), but not BA 24, from subjects with MDD, there was no change in levels of sTNF in either CNS region. Limitations: As the report of tmTNF in postmortem CNS from Subjects with MDD, our findings need to be replicated in another group of cases. Conclusions: Our data supports the hypothesis that changes in pro-inflammatory pathways may be involved in the pathophysiology of MDD. Targeting these pathways may be a new approach to treating the disorder. (C) 2009 Elsevier B.V. All rights reserved.
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