[Association between interleukin-1 alpha-889 C/T polymorphism and Alzheimer's disease in Chinese Han population].
OBJECTIVE
To explore the possible association between interleukin-1 alpha-889C/T (IL-1 alpha-889 C/T) polymorphism and Alzheimer's disease (AD) in Chinese Han population.


METHODS
A total of 520 AD patients and 505 normal controls were enrolled. The polymorphism of IL-1 alpha-889C/T was detected with real-time polymerase chain reaction. Multiple logistic regression and chi square test were performed for statistical analysis.


RESULTS
The frequencies of C/C, C/T, and T/T genotypes were 70.96%, 25.77%, and 3.27%, respectively, among AD patients, and 80.59%, 18.22%, and 1.19%, respectively, among non-dementia controls. In multivariate analysis, T/T and C/T genotypes of IL-1 alpha-889, age > or =65 years, and female were risk factors for AD. Adjusted for the age and sex, T/T and C/T genotypes were still associated with AD. The odds ratio for AD were 3.57 and 1.74 for individuals with T/T and C/T genotypes compared with individuals with C/C genotype. P value was 0. 019 and 0. 001, respectively.


CONCLUSIONS
The IL-1 alpha-889 T/T and C/T genotypes are likely to be susceptible factors for the development of AD in Chinese Han population. The susceptibility genotype, female, and age > or =65 years are risk factors for AD.
Zhou
Yong-tao
YT
Department of Neurology, PUMC Hospital, CAMS and PUMC, Beijing 100730, China.
Zhang
Zhen-xin
ZX
Zhang
Jun-wu
JW
He
Xiao-ming
XM
Xu
Tao
T
D000367:Age Factors; D000368:Aged; D000544:Alzheimer Disease / Q000235:genetics*; D044466:Asian People / Q000235:genetics; D016022:Case-Control Studies; D005260:Female; D005787:Gene Frequency; D020022:Genetic Predisposition to Disease; D005838:Genotype; D006801:Humans; D007375:Interleukin-1 / Q000235:genetics*; D008297:Male; D008875:Middle Aged; D016133:Polymerase Chain Reaction; D011110:Polymorphism, Genetic; D012307:Risk Factors; D012737:Sex Factors
D007375:Interleukin-1