期刊
JOURNAL OF GERIATRIC PSYCHIATRY AND NEUROLOGY
卷 23, 期 1, 页码 49-53出版社
SAGE PUBLICATIONS INC
DOI: 10.1177/0891988709351832
关键词
Alzheimer disease; C-reactive protein; inflammation; treatment; primary prevention
资金
- National Institutes of Health (NIH) [RO1 AG17869, P30 AG12300]
- Texas Alzheimer's Research Consortium (TARC)
- state of Texas through the Texas Council on Alzheimer's Disease and Related Disorders
C-reactive protein (CRP) is an acute-phase reactant that has been found to be associated with Alzheimer disease (AD) in histopathological and longitudinal studies; however, little data exist regarding serum CRP levels in patients with established AD. The current study evaluated CRP levels in 192 patients diagnosed with probable AD (mean age 75.8 +/- 8.2 years; 50% female) as compared to 174 nondemented controls (mean age 70.6 +/- 8.2 years; 63% female). Mean CRP levels were found to be significantly decreased in AD (2.9 mu g/mL) versus controls (4.9 mu g/mL; P - .003). In adjusted models, elevated CRP significantly predicted poorer (elevated) Clinical Dementia Rating Scale sum of boxes (CDR SB) scores in patients with AD. In controls, CRP was negatively associated with Mini-Mental State Examination (MMSE) scores and positively associated with CDR SB scores. These findings, together with previously published results, are consistent with the hypothesis that midlife elevations in CRP are associated with increased risk of AD development though elevated CRP levels are not useful for prediction in the immediate prodrome years before AD becomes clinically manifest. However, for a subgroup of patients with AD, elevated CRP continues to predict increased dementia severity suggestive of a possible proinflammatory endophenotype in AD.
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