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International Journal of Alzheimer’s Disease
Volume 2013, Article ID 242303, 6 pages
Clinical Study

KIF6 719Arg Carrier Status Association with Homocysteine and C-Reactive Protein in Amnestic Mild Cognitive Impairment and Alzheimer’s Disease Patients

Banner Sun Health Research Institute, Cleo Roberts Center for Clinical Research, Sun City, AZ 85351, USA

Received 27 June 2013; Revised 11 October 2013; Accepted 12 October 2013

Academic Editor: Francesco Panza

Copyright © 2013 Michael Malek-Ahmadi et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Recent research has demonstrated associations between statin use, KIF6 719Arg carrier status, and cholesterol levels and amnestic mild cognitive impairment (aMCI) and Alzheimer’s disease (AD) patients. The association between 719Arg carrier status with homocysteine (tHcy) and c-reactive protein (CRP) levels in aMCI and AD has not been previously investigated. Data from 175 aMCI and AD patients were used for the analysis. 719Arg carriers had significantly lower levels of tHcy than noncarriers ( ). No significant difference in CRP levels between 719Arg carriers and noncarriers was present ( ). Logistic regression yielded no significant effect for 719Arg status on CRP [OR = 1.79 (0.85, 3.83), ] but did demonstrate a significant effect for tHcy [OR = 0.44 (0.23, 0.83), ] after adjusting for ApoE carrier status, age, gender, and statin use. This study is the first to explore the relationship between KIF6 719Arg carrier status with tHcy and CRP levels. 719Arg carriers were more likely to have normal tHcy levels after adjusting for ApoE status, age, gender, and statin use. These results suggest that the KIF6 gene might influence cardiovascular pathways associated with AD.