Memantine improves semantic memory in patients with amnestic mild cognitive impairment: A single-photon emission computed tomography study

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...

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Bibliographic Details
Published in:	Journal of international medical research Vol. 45; no. 6; pp. 2053 - 2064
Main Authors:	Ilhan Algin, Demet, Dagli Atalay, Suna, Ozkan, Serhat, Ozbabalik Adapinar, Demet, Ak Sivrioz, Ilknur
Format:	Journal Article
Language:	English
Published:	London, England SAGE Publications 01-12-2017
Subjects:	Aged Amnesia - complications Amnesia - drug therapy Amnesia - physiopathology Cognitive Dysfunction - complications Cognitive Dysfunction - drug therapy Cognitive Dysfunction - physiopathology Demography Female Humans Male Memantine - pharmacology Memantine - therapeutic use Memory - drug effects Middle Aged Neuropsychological Tests Perfusion Research Report Semantics Tomography, Emission-Computed, Single-Photon computed tomography dementia Memantine Alzheimer’s disease amnestic mild cognitive impairment Petersen’s criteria
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Summary:	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.
Bibliography:	ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23
ISSN:	0300-0605 1473-2300
DOI:	10.1177/0300060517715166