Identifying and validating biomarkers for Alzheimer's disease

Trends Biotechnol. 2011 Jan;29(1):26-32. doi: 10.1016/j.tibtech.2010.09.007. Epub 2010 Oct 23.


The identification and validation of biomarkers for diagnosing Alzheimer's disease (AD) and other forms of dementia are increasingly important. To date, ELISA measurement of β-amyloid(1-42), total tau and phospho-tau-181 in cerebrospinal fluid (CSF) is the most advanced and accepted method to diagnose probable AD with high specificity and sensitivity. However, it is a great challenge to search for novel biomarkers in CSF and blood by using modern potent methods, such as microarrays and mass spectrometry, and to optimize the handling of samples (e.g. collection, transport, processing, and storage), as well as the interpretation using bioinformatics. It seems likely that only a combined analysis of several biomarkers will define a patient-specific signature to diagnose AD in the future.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Alzheimer Disease / blood
  • Alzheimer Disease / cerebrospinal fluid
  • Alzheimer Disease / diagnosis*
  • Amyloid beta-Peptides / blood
  • Amyloid beta-Peptides / cerebrospinal fluid
  • Biomarkers / blood*
  • Biomarkers / cerebrospinal fluid*
  • Humans
  • tau Proteins / blood
  • tau Proteins / cerebrospinal fluid


  • Amyloid beta-Peptides
  • Biomarkers
  • tau Proteins