期刊
NEUROBIOLOGY OF AGING
卷 31, 期 4, 页码 549-566出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.neurobiolaging.2008.05.013
关键词
Laser capture microdissection; Affymetrix microarrays; Expression profiling; Neuron; Transcriptomics
资金
- National Institute on Aging [K01AG024079, 1-RO1-AG023193, RO1-5U24NS051872, P30 AG19610, P01 AG03991, AG05128]
- National Alzheimer's Coordinating Center [U01AG016976]
- Arizona Alzheimer's Research Center
While the clinical and neuropathological characterization of Alzheimer's Disease (AD) is well defined, our understanding of the progression of pathologic mechanisms in AD remains unclear Post-mortem brains from individuals who did not fulfill clinical criteria for AD may still demonstrate measurable levels of AD pathologies to suggest that they may have presented with clinical symptoms had they lived longer or are able to stave off disease progression. Comparison between such individuals and those clinically diagnosed and pathologically confirmed to have AD will be key in delineating AD pathogenesis and neuroprotection In this study. we expression profiled laser capture microdissected non-tangle bearing neurons in 6 post-mortem brain regions that are differentially affected in the AD brain horn 10 non-demented individuals demonstrating in AD neuropathologies (NDAD. Braak stage of II through IV and CERAD rating of moderate to frequent) and evaluated this data against that from individuals who have been diagnosed with late onset AD as well as healthy elderly controls We identified common statistically significant expression changes in both NDAD and AD brains that may establish a degenerative link between the two cohorts, in addition to NDAD specific transcriptomic changes These findings pinpoint novel targets for developing ear her diagnostics and preventative therapies for AD prior to diagnosis of probable AD We also provide this high-quality, low post-mortem interval (PM I), cell-specific. and region-specific NDAD/AD reference data set to the community as a public resource (C) 2008 Elsevier Inc All rights reserved
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