期刊
NEUROSCIENCE LETTERS
卷 626, 期 -, 页码 19-24出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.neulet.2016.05.018
关键词
aMCI; AD; APOE epsilon 4; HCY; BDNF
资金
- Hebei Medical Science Research Program of the Health Department of Hebei Province [20130345]
Amnestic mild cognitive impairment (aMCI) is a transitional stage between normal aging and Alzheimer's disease (AD). Possession of the apolipoprotein E (APOE) epsilon 4 genotype is a major predictor of progression to AD, particularly in patients with aMCI. However, the use of APOE genotyping in the diagnosis of aMCI that evolves into AD is limited due to its low sensitivity and specificity. In this study, we found that there was a notable increase in plasma homocysteine (HCY) and significant decrease in serum brain-derived neurotrophic factor (BDNF) in aMCI that converts to AD in patients with the APOE epsilon 4 allele. Both plasma HCY and serum BDNF had higher positive predictive values and were more sensitive biomarkers of aMCI. Additionally, a testing strategy employing plasma HCY and serum BDNF revealed increases in sensitivity, specificity, and predictive ability compared with the use of either biomarker alone. The present study demonstrates that MCI that evolves into AD in patients with the APOE epsilon 4 genotype may be predicted by plasma HCY and serum BDNF. (C) 2016 Elsevier Ireland Ltd. All rights reserved.
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