Journal
MEDICAL SCIENCE MONITOR
Volume 21, Issue -, Pages 2572-2582Publisher
INT SCIENTIFIC INFORMATION, INC
DOI: 10.12659/MSM.895381
Keywords
Alzheimer Disease; Cholinesterase Inhibitors; Dementia; Neurobehavioral Manifestations; Paired-Associate Learning; Treatment Outcome
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Background: The Cambridge Neuropsychological Test Automated Battery (CANTAB) was used to explore which tests and their measures are able to detect cognitive change after a single dose of donepezil in Alzheimer disease (AD) patients. The aim of this study was to establish the ability of CANTAB tests and their measures to detect cognitive change after a single 5-mg dose of donepezil in treatment-naive AD patients. Material/Methods: We enrolled 62 treatment-naive AD patients and 30 healthy controls in this prospective, randomized, rater-blinded study. AD patients were randomized to 2 groups: the AD+ group received donepezil after the first CANTAB testing and the AD-group remained treatment-naive at second testing. The time period between repeated testing was 4 hours. Parallel versions of CRT, SOC, PAL, SWM, and PRM tests were used. Results: All groups did not differ according to age, education, gender, or depression (p>0.05). AD+ and AD-groups did not differ according to MMSE. SOC, PAL, PRM, and SWM tests distinguished AD from controls. Eight measures of PAL and PRM had a strong correlation with MMSE (r>0.7). Repeated-measures ANOVA with Bonferroni post-hoc test showed the difference of change in AD+ and AD-groups between first and second CANTAB testing in 7 PAL measures. AD+ and AD-groups differed in the second testing by 7 PAL measures. Four PAL measures differed in first and second testing within the AD+ group. Conclusions: The CANTAB PAL test measures, able to detect cognitive change after a single dose of donepezil in AD patients, are: PAL mean trials to success, total errors (adjusted), total errors (6 shapes, adjusted), and total trials (adjusted).
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