Neuropsychiatric Correlates of Cerebrospinal Fluid Biomarkers in Alzheimer’s DiseaseSkogseth R. · Mulugeta E. · Ballard C. · Rongve A. · Nore S. · Alves G. · Aarsland D.
aInstitute of Clinical Medicine, School of Medicine, University of Bergen, and bSection for Geriatric Medicine, Haraldsplass Hospital, Bergen, and cNorwegian Centre for Movement Disorders, dPsychiatric Clinic and eDepartment of Neurology, Stavanger University Hospital, Stavanger, and fHaugesund Hospital, Helse-Fonna HF, Haugesund, Norway; gWolfson Centre for Age-Related Diseases, King’s College London, UK
Background: The aim of this study was to explore the relationship between cerebrospinal fluid biomarkers and neuropsychiatric symptoms in people with Alzheimer’s disease. Psychosis, agitation, apathy and depression were assessed using standardised measures in 32 patients with mild Alzheimer’s disease. Methods: The levels of the 42-amino-acid form of β-amyloid (Aβ1–42), tau and p-tau (phosphorylated at threonine 181) were quantified using the conventional enzyme-linked immunosorbent assay method. Results: Our result shows that apathy is significantly correlated with tau and p-tau but not with Aβ1–42. There were no significant correlations between indices of psychosis/agitation,or depression and cerebrospinal fluid Aβ1–42, tau or p-tau concentrations. Conclusion: Our finding suggests that apathy is associated with the level of neurofibrillary tangles in people with mild Alzheimer’s disease. In contrast, the overall levels of neurofibrillary tangles or amyloid plaques do not seem to be associated with depression or psychosis, indicating that other brain changes contribute to these symptoms.
Prof. Dag Aarsland
Wolfson Centre for Age-Related Diseases
King’s College London, Hodgkin Building
London SE1 1UL (UK)
Tel. +44 20 7848 8194, Fax +44 20 7848 6515, E-Mail firstname.lastname@example.org
R.S. and E.M. contributed equally to this paper.
Accepted: April 21, 2008
Published online: June 9, 2008
Number of Print Pages : 5
Number of Figures : 1, Number of Tables : 1, Number of References : 29
Dementia and Geriatric Cognitive Disorders
Vol. 25, No. 6, Year 2008 (Cover Date: July 2008)
Journal Editor: Chan-Palay V. (New York, N.Y.)
ISSN: 1420–8008 (Print), eISSN: 1421–9824 (Online)
For additional information: http://www.karger.com/DEM