期刊
NEUROSCIENCE LETTERS
卷 350, 期 1, 页码 61-65出版社
ELSEVIER SCI IRELAND LTD
DOI: 10.1016/S0304-3940(03)00854-1
关键词
Alzheimer's disease; tumour necrosis factor-alpha; polymorphisms; HLA-DRB1*03
资金
- Alzheimers Research UK [ART-EG2003A-3] Funding Source: researchfish
Recent findings suggest that production of pro-inflammatory cytokines, such as tumour necrosis factor-alpha (TNF-alpha), is increased in the brains of people with Alzheimer's disease (AD). We used direct sequencing methods on a section of the enhancer/promoter region and on a smaller fragment located 10.5 kb upstream of the TNF-alpha gene to respectively examine TNF-alpha polymorphisms and TNF-a and -b microsatellite alleles in a cohort of 235 post-mortem confirmed AD and 130 control cases. None of the TNF-alpha point mutations or microsatellite alleles investigated proved to be independent risk factors for AD. However, when -308/A, -238/G and TNF-a2 were examined as a 2-1-2 haplotype, we observed that the absence of that haplotype was significantly associated with AD (P = 0.014, Fisher's exact test) suggesting that the 2-1-2 haplotype may be protective against AD. (C) 2003 Elsevier Ireland Ltd. All rights reserved.
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