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Luis, C.A., Abdullah, L., Paris, D., Quadros, A., Mullan, M., Mouzon, B., Ait-Ghezala, G. and Crawford, F. (2009) Serum beta-amyloid correlates with neuropsychological impairment. Aging, Neuropsychology, and Cognition: A Journal on Normal and Dysfunctional Development, 16, 203-218. doi:10.1080/13825580802411766

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• TITLE: Comparison of protein concentrations in serum versus plasma from Alzheimer’s patients

  AUTHORS: Ryan M. Huebinger, Guanghua Xiao, Kirk C. Wilhelmsen, Ramon Diaz-Arrastia, Fan Zhang, Sid E. O'Bryant, Robert C. Barber

  KEYWORDS: Alzheimer’s Disease; Serum Proteins; Plasma Proteins

  JOURNAL NAME: Advances in Alzheimer's Disease, Vol.1 No.3, December 28, 2012

  ABSTRACT: Background: There is great interest in developing blood-based biomarkers for Alzheimer’s disease (AD); however, there is no consensus as to what blood fraction is most appropriate for analyzing particular markers. The current study provides empirical evidence regarding how blood-based proteins vary depending on whether they are assayed in serum or plasma. Methods: Weanalyzed concentrations of 100 proteins in matched samples of serum and plasma from 39 Caucasian AD participants from the Texas Alzheimer’s Research and Care Consortium bymultiplex immunoassay. Results: Concentrations of 40 proteins were highly correlated (r2≥ 0.75) between plasma and serum while the remaining proteins were moderately to weakly correlated (r2