Neurological Sciences

, Volume 22, Issue 1, pp 77–78

CSF phosphorylated tau is a possible marker for discriminating Alzheimer's disease from dementia with Lewy bodies

  • L. Parnetti
  • A. Lanari
  • S. Amici
  • V. Gallai
  • E. Vanmechelen
  • F. Hulstaert
  • for the Phospho-Tau International Study Group

DOI: 10.1007/s100720170055

Cite this article as:
Parnetti, L., Lanari, A., Amici, S. et al. Neurol Sci (2001) 22: 77. doi:10.1007/s100720170055

Abstract

Tau and β-amyloid (1–42) (Aβ42) are two independent markers for the early diagnosis of Alzheimer's disease (AD). In the present study, biochemical markers were validated as tools for differential diagnosis between AD and dementia with Lewy bodies (DLB). Tau, Aβ42 and phosphotau (181P) were measured in cerebrospinal fluid (CSF) from controls (n=40) and from patients with AD (n=80) or DLB (n=43) using the HT7-AT270 assay (prototype version). In comparison with AD, in DLB no differences were found for Aβ42 and lower phospho-tau. ROC analysis was used to compare the discriminatory power of total tau with that of phospho-tau. The area under the curve (AUC) amounted to 0.782±0.048 (mean ±SE) for tau and to 0.839±0.042 for phospho-tau (p<0.039) for differentiation of AD from DLB. The present results indicate that CSF phospho-tau may be a good marker for differentiation between AD and DLB.

Copyright information

© Springer-Verlag Italia 2001

Authors and Affiliations

  • L. Parnetti
    • 1
  • A. Lanari
    • 1
  • S. Amici
    • 1
  • V. Gallai
    • 1
  • E. Vanmechelen
    • 2
  • F. Hulstaert
    • 2
  • for the Phospho-Tau International Study Group
  1. 1.Neuroscience Department, University of Perugia, Via Enrico dal Pozzo, I-06126 Perugia, ItalyIT
  2. 2.Innogenetics, Ghent, BelgiumBE

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