Journal
JOURNAL OF INTERNATIONAL MEDICAL RESEARCH
Volume 45, Issue 6, Pages 2053-2064Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1177/0300060517715166
Keywords
Memantine; dementia; amnestic mild cognitive impairment; computed tomography; Alzheimer's disease; Petersen's criteria
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Objective: This study was performed to assess the efficacy of memantine in patients with amnestic mild cognitive impairment (aMCI). Methods: Thirty healthy controls and 45 patients diagnosed with aMCI based on the Petersen criteria were classified into 3 groups. Group 1 comprised patients who received a single memantine dose following examination (n = 25), Group 2 comprised patients who did not receive memantine treatment following examination (n = 20), and Group 3 comprised healthy age-matched volunteers (n = 30). Neuropsychological testing was performed, and the response to memantine was examined at baseline and at 12, 24, and 48 weeks. Single-photon emission computed tomography was performed at baseline and at 48 weeks in patients who received memantine treatment. Results: Memantine treatment significantly improved the symptoms of aMCI according to the Wechsler Adult Intelligence Scale-Revised vocabulary subtest, backward digit span, and Blessed Dementia Rating Scale, all of which were recorded for the duration of the study. Conclusion: These data indicate that patients with aMCI receiving memantine develop an improved semantic memory compared with no treatment. Further studies including larger patient cohorts are necessary to validate these findings.
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