Associations between apolipoprotein E genotypes and serum levels of glucose, cholesterol, and triglycerides in a cognitively normal aging Han Chinese population
Authors Tao Q, Chen Y, Liu Z, Sun Y, Yang P, Lu S, Xu M, Dong Q, Yang J, Wu Z
Received 16 February 2014
Accepted for publication 18 March 2014
Published 9 July 2014 Volume 2014:9 Pages 1063—1067
Checked for plagiarism Yes
Review by Single anonymous peer review
Peer reviewer comments 3
Qing-Qing Tao,1,* Yan Chen,2,3,* Zhi-Jun Liu,1 Yi-Min Sun,1 Ping Yang,1 Shen-Ji Lu,1 Miao Xu,1 Qin-Yun Dong,1 Jia-Jun Yang,2 Zhi-Ying Wu1
1Department of Neurology and Institute of Neurology, Huashan Hospital, Shanghai Medical College, Fudan University, 2Department of Neurology, Sixth People’s Hospital Affiliated to Shanghai Jiao Tong University, 3Department of Medicine, Shanghai Fengxian District Central Hospital, Shanghai, People’s Republic of China
*These authors contributed equally to this work
Purpose: To determine the associations between apolipoprotein E (APOE) genotypes and serum levels of glucose, total cholesterol, and triglycerides in a cognitively normal aging Han Chinese population.
Methods: There were 1,003 cognitively normal aging subjects included in this study. APOE genotypes were analyzed and biochemical parameters were tested. All the subjects were divided into three groups according to APOE genotypes: (1) E2/2 or E2/3 (APOE E2); (2) E3/3 (APOE E3); and (3) E2/4, E3/4, or E4/4 (APOE E4). Correlations of serum levels of glucose, total cholesterol, and triglycerides with APOE genotypes were assessed.
Results: E2, E3, and E4 allele frequencies were found to be 6.2%, 82.1%, and 11.7%, respectively. Serum levels of total cholesterol were higher in the APOE E4 group (P<0.05). A higher level of total cholesterol was associated with the E4 allele (adjusted odds ratio 1.689, 95% confidence interval 1.223–2.334, P<0.01). However, no association was found between APOE status and serum levels of glucose (adjusted odds ratio 0.981, 95% confidence interval 0.720–1.336, P=0.903) or total triglycerides (adjusted odds ratio 1.042, 95% confidence interval 0.759–1.429, P=0.800).
Conclusion: A higher serum level of total cholesterol was significantly correlated with APOE E4 status in a cognitively normal, nondiabetic aging population. However, there was no correlation between APOE genotypes and serum levels of glucose or total triglycerides.
Keywords: Alzheimer’s disease, APOE, glucose level, cholesterol, triglycerides
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