期刊
CYTOKINE
卷 57, 期 2, 页码 221-225出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.cyto.2011.11.006
关键词
Neurodegeneration; Peripheral inflammatory markers; Mild cognitive impairment
资金
- Shanghai municipal hospitals [SHDC12006108]
- Shanghai Science and Technology Commission [07DJ14005]
- China Postdoctoral Science Foundation [20060390635]
Early diagnosis of Alzheimer's disease (AD) is important for initiating timely therapy to block or slow the rate of disease progression. This study was designed to investigate the potential of inflammation-related biomarkers in peripheral blood to accurately reflect AD onset and progression. Individuals (n = 150) with amnestic mild cognitive impairment (aMCI) were divided into two subgroups (low- and high-risk) based on APOE epsilon 4 allele carrier status, and administered a battery of neuropsychological tests and tested for serum levels of IL-6, IL-10, TNF-alpha, and IFN-gamma by using specific enzyme-linked immunosorbent assays. Results were compared with those from age-matched healthy controls (n = 150). The levels of IL-6 were significantly higher in the aMCI group than in controls (P < 0.01). When the aMCI group was stratified by APOE epsilon 4 status, significant differences were found between the low- and high-risk groups and controls in the levels of IL-6 and IFN-gamma (P < 0.01 and P = 0.041, respectively). Moreover, the IL-6 level in the low-risk aMCI group was higher than that in the high-risk aMCI group (P = 0.028). A weak but significant negative correlation was found between IL-6 and cognitive performance. Taken together, these findings indicate that IL-6, while not useful alone, has potential in combination with other biomarkers to support early diagnosis of aMCI due to its association with the progression of cognitive impairment. Crown Copyright (C) 2011 Published by Elsevier Ltd. All rights reserved.
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