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Vol. 7, No. 1-3, 2010
Issue release date: April 2010
Section title: Imaging, Biomarkers, Genetics and Diagnostic Markers
Neurodegenerative Dis 2010;7:148–152
(DOI:10.1159/000289226)

Human Analogue of the Morris Water Maze for Testing Subjects at Risk of Alzheimer’s Disease

Laczó J. · Andel R. · Vyhnalek M. · Vlcek K. · Magerova H. · Varjassyova A. · Tolar M. · Hort J.
aDepartment of Neurology, Charles University, and bDepartment of Neurophysiology of Memory, Czech Academy of Sciences, Prague, Czech Republic; cSchool of Aging Studies, University of South Florida, Tampa, Fla., and dDepartment of Neurology, Yale University School of Medicine, New Haven, Conn., USA

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Article / Publication Details

First-Page Preview
Abstract of Imaging, Biomarkers, Genetics and Diagnostic Markers

Published online: 3/3/2010

Number of Print Pages: 5
Number of Figures: 5
Number of Tables: 0

ISSN: 1660-2854 (Print)
eISSN: 1660-2862 (Online)

For additional information: http://www.karger.com/NDD

Abstract

Background: Patients with Alzheimer’s disease (AD) and amnestic mild cognitive impairment (MCI) have difficulties with spatial orientation. Objective: To test hypothesis that spatial navigation is impaired early in MCI patients representing the presymptomatic stage of AD. Methods: We tested patients with probable AD (n = 21), MCI, further classified according to Petersen’s criteria as amnestic MCI (aMCI) single domain (n = 11), aMCI multiple domain (n = 31), or nonamnestic MCI (n = 7). The aMCI group was also stratified using cued recall according to Dubois’ criteria into memory impairment of the hippocampal type (n = 10) and isolated memory retrieval impairment-nonhippocampal (n = 32) and also according to ApoE4 status into E4+ (n = 12) and E4– (n = 30). These patients and controls (n = 28) were tested in the human variant of the Morris water maze. Depending on the subtest, the subjects could use the egocentric or allocentric (hippocampus-dependent) navigation. Results: The AD and aMCI multiple domain groups were impaired in all subtests. The aMCI single domain group was impaired in allocentric subtests. The hippocampal MCI group performed poorer than the nonhippocampal MCI group and similarly to the AD group. The ApoE4+ group was as bad as the AD group when compared with the E4– group. Conclusion: aMCI subjects represent a very heterogeneous population, and spatial memory or cued recall examination can add more value to aMCI classification. ApoE4+ patients are more impaired than ApoE4– patients.


  

Author Contacts

Dr. Jakub Hort
Charles University, 2nd Medical School, Department of Neurology Memory Disorders Clinic, V Uvalu 84
CZ–15006 Prague (Czech Republic)
Tel. +420 224 436 816, Fax +420 224 436 820, E-Mail jakub.hort@seznam.cz

  

Article Information

Published online: March 3, 2010
Number of Print Pages : 5
Number of Figures : 5, Number of Tables : 0, Number of References : 8

  

Publication Details

Neurodegenerative Diseases

Vol. 7, No. 1-3, Year 2010 (Cover Date: April 2010)

Journal Editor: Nitsch R.M. (Zürich), Hock C. (Zürich)
ISSN: 1660-2854 (Print), eISSN: 1660-2862 (Online)

For additional information: http://www.karger.com/NDD


Article / Publication Details

First-Page Preview
Abstract of Imaging, Biomarkers, Genetics and Diagnostic Markers

Published online: 3/3/2010

Number of Print Pages: 5
Number of Figures: 5
Number of Tables: 0

ISSN: 1660-2854 (Print)
eISSN: 1660-2862 (Online)

For additional information: http://www.karger.com/NDD


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