Guidelines for the standardization of preanalytic variables for blood-based biomarker studies in Alzheimer's disease research

Sid E. O'Bryant, Veer Gupta, Kim Henriksen, Melissa Edwards, Andreas Jeromin, Simone Lista, Chantal Bazenet, Holly Soares, Simon Lovestone, Harald Hampel, Thomas Montine, Kaj Blennow, Tatiana Foroud, Maria Carrillo, Neill Graff-Radford, Christoph Laske, Monique Breteler, Leslie Shaw, John Q. Trojanowski, Nicole SchupfRobert A. Rissman, Anne M. Fagan, Pankaj Oberoi, Robert Umek, Michael W. Weiner, Paula Grammas, Holly Posner, Ralph Martins

Research output: Contribution to journalReview articlepeer-review

101 Scopus citations

Abstract

The lack of readily available biomarkers is a significant hindrance toward progressing to effective therapeutic and preventative strategies for Alzheimer's disease (AD). Blood-based biomarkers have potential to overcome access and cost barriers and greatly facilitate advanced neuroimaging and cerebrospinal fluid biomarker approaches. Despite the fact that preanalytical processing is the largest source of variability in laboratory testing, there are no currently available standardized preanalytical guidelines. The current international working group provides the initial starting point for such guidelines for standardized operating procedures (SOPs). It is anticipated that these guidelines will be updated as additional research findings become available. The statement provides (1) a synopsis of selected preanalytical methods utilized in many international AD cohort studies, (2) initial draft guidelines/SOPs for preanalytical methods, and (3) a list of required methodological information and protocols to be made available for publications in the field to foster cross-validation across cohorts and laboratories.

Original languageEnglish
Pages (from-to)549-560
Number of pages12
JournalAlzheimer's and Dementia
Volume11
Issue number5
DOIs
StatePublished - 1 May 2015

Keywords

  • Alzheimer's disease
  • Biomarkers
  • Blood
  • Dementia
  • Diagnosis
  • Plasma
  • Serum
  • Treatment

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