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Acta Neuropathol. 2010 Sep;120(3):385-99. doi: 10.1007/s00401-010-0723-9. Epub 2010 Jul 22.

Biomarker discovery for Alzheimer's disease, frontotemporal lobar degeneration, and Parkinson's disease.

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  • 1Department of Neurology, University of Pennsylvania, Philadelphia, PA, USA.

Abstract

Ante-mortem diagnosis of neurodegenerative disorders based on clinical features alone is associated with variable sensitivity and specificity, and biomarkers can potentially improve the accuracy of clinical diagnosis. In patients suspected of having Alzheimer's disease (AD), alterations in cerebrospinal fluid (CSF) biomarkers that reflect the neuropathologic changes of AD strongly support the diagnosis, although there is a trade-off between sensitivity and specificity due to similar changes in cognitively healthy subjects. Here, we review the current approaches in using CSF AD biomarkers (total tau, p-tau(181), and Abeta42) to predict the presence of AD pathology, and our recent work using multi-analyte profiling to derive novel biomarkers for biofluid-based AD diagnosis. We also review our use of the multi-analyte profiling strategy to identify novel biomarkers that can distinguish between subtypes of frontotemporal lobar degeneration, and those at risk of developing cognitive impairment in Parkinson's disease. Multi-analyte profiling is a powerful tool for biomarker discovery in complex neurodegenerative disorders, and analytes associated with one or more diseases may shed light on relevant biological pathways and potential targets for intervention.

PMID:
20652578
[PubMed - indexed for MEDLINE]
PMCID:
PMC2982700
Free PMC Article

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