Analysis of association between butyrylcholinesterase K variant and apolipoprotein E genotypes in Alzheimer's disease

被引:39
|
作者
Raygani, AV [1 ]
Zahrai, M
Soltanzadeh, A
Doosti, M
Javadi, E
Pourmotabbed, T
机构
[1] Univ Tehran, Dept Med Biochem, Tehran, Iran
[2] Kermanshah Univ Med Sci, Dept Biochem Med, Kermanshah, Iran
[3] Univ Tehran, Dept Neurol, Tehran, Iran
[4] Univ Tennessee, Ctr Hlth Sci, Dept Mol Sci, Knoxville, TN 37996 USA
关键词
Alzheimer's disease; butyrylcholinesterase K; variants; apolipoprotein E; Iranian; aging; genetic polymorphism; Tehran population;
D O I
10.1016/j.neulet.2004.08.057
中图分类号
Q189 [神经科学];
学科分类号
071006 ;
摘要
Recent studies indicate that there is a synergic association between butyrylcholinesterase-K variant (BChE-K) and apolipoproteinE-epsilon4 (ApoE-epsilon4) to promote risk for Alzheimer's disease (AD). Most subsequently replicative studies have been unable to confirm these finding. We attempted to replicate this finding in 105 AD cases and age and sex matched 129 controls from Tehran population, Iran. The BChE genotype of patients were found to be significantly different from controls (chi(2) = 12.2, d.f. = 2, p = 0.002). The frequency of BChE-K allele was also found to differ significantly in cases compared to controls [24% versus 12% (chi(2) = 20.6, d.f. = 2, p < 0.001)] leading to an increased risk of AD in subjects with this allele (OR = 2.5, 95% Cl = 1.64-3.8, p = 0.001). This risk was found to increase from (OR = 2.37, 95% Cl = 1.3-4.2, p = 0.006) in subjects less than 75 years old to (OR = 3.16, 95% Cl = 1.41-7. 1, p = 0.001) in subjects 75 years and older. But, the ApoE-epsilon4 allele association risk was found to decrease from (OR = 9.5, 95% Cl = 3.74-24.1, p = 0.001) in subjects <75 years to (OR = 1.36, 95% Cl = 0.49-4.1, p = 0.58) in those subjects 75 years and older. Furthermore, we found a very strong synergic association between BChE-K and ApoE-e4 OR = 19.1 (95% CI = 428-85.45, p < 0.001). In spite of this, synergism decreased from OR = 36.2 (95% Cl = 4.4-296, p = 0.001) in subjects <75 year olds to OR = 6.2 (95% Cl = 0.9-72.4, p = 0.06) in subjects greater than or equal to75 years. We have found that BChE-K and ApoE-epsilon4 alleles act synergistically to increase the risk of the late-onset AD, particularly in age group <75 years in Tehran, Iran. (C) 2004 Elsevier Ireland Ltd. All rights reserved.
引用
收藏
页码:142 / 146
页数:5
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