A possible new diagnostic biomarker in early diagnosis of Alzheimer's disease

Item Type:	Article
Title:	A possible new diagnostic biomarker in early diagnosis of Alzheimer's disease
Creators Name:	Kork, F. and Holthues, J. and Hellweg, R. and Jankowski, V. and Tepel, M. and Ohring, R. and Heuser, I. and Bierbrauer, J. and Peters, O. and Schlattmann, P. and Zidek, W. and Jankowski, J.
Abstract:	Early diagnosis in patients with Alzheimer's disease (AD) is of great importance since only a sufficient treatment in early stages of this disease helps to keep patients in an autonomous state for as long as possible. Until now, there is no single diagnostic biomarker for AD derived from material routinely obtained. In this study, proton nuclear magnetic resonance (1H-NMR) spectra of the cerebrospinal fluid (CSF) of AD patients were compared with 1H-NMR spectra of the CSF of healthy control subjects using a metabonomic approach. The 1H-NMR spectra of CSF of AD patients showed specific multiplets at 2.15 ppm and 2.45 ppm, which could not be detected in the majority (59.3% and 70.4%, respectively) of healthy control subjects (positive likelihood ratio (+LR) 2.33, 95% CI [1.46, 3.72], p<0.01; +LR 3.22, 95% CI [1.78, 5.78], p<0.01). Moreover, CSF 1H-NMR spectra of AD patients showed specific resonances at 7.03 ppm (+LR 3.38, 95% CI [1.60, 7.14], p<0.05), 7.19 ppm (+LR 2.89, 95% CI [1.46, 5.74], p<0.05), 7.43 ppm (+LR 3.15, 95% CI [1.47, 6.75], p<0.05), and at 7.91 ppm (+LR 3.38, 95% CI [1.60, 7.14], p<0.01). CSF 1H-NMR spectroscopy is obviously a capable method for detection and quantification of substances in the CSF of AD patients even without the knowledge of molecular structures. These substances can be used as a biomarker in the early diagnosis of AD. We assume that this biomarker will simplify the diagnosis of AD, especially in early stages of the disease.
Keywords:	Alzheimer Disease, NMR Spectroscopy, Diagnostic Marker, Biomarker, Cerebrospinal Fluid, Metabonomics
Source:	Current Alzheimer Research
ISSN:	1567-2050
Publisher:	Bentham
Volume:	6
Number:	6
Page Range:	519-524
Date:	December 2009
Official Publication:	https://doi.org/10.2174/156720509790147160
PubMed:	View item in PubMed

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