Neurochemical diagnosis of Alzheimer's dementia by CSF A beta 42, A beta 42/A beta 40 ratio and total tau
2004 | journal article. A publication with affiliation to the University of Göttingen.
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Neurochemical diagnosis of Alzheimer's dementia by CSF A beta 42, A beta 42/A beta 40 ratio and total tau
Lewczuk, P.; Otto, M.; Maler, J. M.; Reulbach, U.; Kornhuber, J.; Esselmann, H. & Henkel, A. W. et al. (2004)
Neurobiology of Aging, 25(3) pp. 273-281. DOI: https://doi.org/10.1016/S0197-4580(03)00086-1
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- Authors
- Lewczuk, Piotr; Otto, Markus; Maler, Juan Manuel; Reulbach, Udo; Kornhuber, Johannes; Esselmann, Hermann ; Henkel, Andreas Wolfram; Henkel, Maria Kerstin; Eikenberg, Oliver; Antz, Christof; Krause, Wolf-Rainer; Wiltfang, Jens
- Abstract
- Cerebrospinal fluid (CSF) concentrations of amyloid p peptides ending at positions 42 and 40 (Abeta42 and Abeta40, respectively), and total tau (tTau) protein were measured by ELISA in order to compare their accuracy in discriminating patients with Alzheimer's disease (AD, n = 22), non-Alzheimer dementia (nAD, n = 11) and control subjects (CON, n = 35). As compared to the other groups, the concentrations of Abeta42 and tTau were decreased (P < 0.001) and increased (P < 0.001) in AD, respectively, while Abeta40 did not differ significantly among the groups. Receiver operating characteristic (ROC) analysis was performed to define cut-off values for maximized sensitivity and specificity. For all groups compared the Abeta peptide ratio 42/40 classified more patients correctly, as compared to the concentration of Abeta42 alone: AD versus controls, 94 and 86.7%; AD versus nAD, 90 and 85% and AD versus nAD plus controls, 90.8 and 87%, respectively. The percentage of correctly classified patients was further improved when the Abeta ratio was combined with the analysis of the tTau concentration. Presence of the apolipoprotein E epsilon4 allele, age or degree of mental disability did not significantly influence the parameters studied. (C) 2003 Elsevier Science Inc. All rights reserved.
- Issue Date
- 2004
- Journal
- Neurobiology of Aging
- ISSN
- 0197-4580
- Language
- English