期刊
BRAIN RESEARCH
卷 1381, 期 -, 页码 202-207出版社
ELSEVIER
DOI: 10.1016/j.brainres.2011.01.007
关键词
Alzheimer's disease; Toll-like receptor 4; Polymorphism
资金
- National Natural Science Foundation of China [81000544, 30870884]
- Shandong Provincial Natural Science Foundation, China [ZR2010HQ004]
- Qingdao Bureau of Science and Technology [09-1-1-30-nsh, 10-3-3-4-19-nsh]
- Shandong Provincial Outstanding Medical Academic Professional Program
The amyloid beta-protein (A-beta deposits in the brains of patients with Alzheimer's disease (AD) are closely associated with innate immune responses that were assumed to play a pivotal role in the pathogenesis of AD. Toll-like receptor 4 (TLR4) is thought to contribute to A beta clearance. Studies have reported the presence and functional significance of the TLR4/11367 polymorphism in a Han Chinese population. To evaluate the involvement of the TLR4/11367 polymorphism in the risk of late-onset Alzheimer's disease (LOAD), we performed a case-control study to analyze the genotype and allele distributions of the TLR4/11367 polymorphism in a Han Chinese population (137 LOAD cases and 137 healthy controls). There were significant differences in genotype and allele frequencies between LOAD cases and controls (genotype P<0.001, allele P<0.001). After stratification by APOE epsilon 4-carrying status, the C allele of the TLR4/11367 polymorphism was still significantly associated with LOAD in APOE epsilon 4 non-carriers (OR=5.77, 95% CI=3.03-11.00, P<0.001) and carriers (OR=2.03, 95% CI=1.03-3.98, P=0.04). In addition, a logistic regression analysis also conferred positive association between TLR4/11367C and LOAD (dominant model: ORa=3.08, 95% CI=1.60-5.93, P=0.001; recessive model: ORa=8.79, 95% CI=3.31-23.36, P<0.001; additive model: ORa=2.75, 95% CI=1.73-4.37, P<0.001) after adjustment for age, gender, and the APOE epsilon 4 carrier status. This study gives the first evidence that the TLR4/11367 polymorphism was associated with LOAD in a Han Chinese population. (C) 2011 Elsevier B.V. All rights reserved.
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