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Combined application of tenuigenin and β-asarone improved the efficacy of memantine in treating moderate-to-severe Alzheimer’s disease

Authors Chang W, Teng J

Received 30 October 2017

Accepted for publication 8 December 2017

Published 5 March 2018 Volume 2018:12 Pages 455—462

DOI https://doi.org/10.2147/DDDT.S155567

Checked for plagiarism Yes

Review by Single-blind

Peer reviewer comments 2

Editor who approved publication: Dr Tuo Deng


Wenguang Chang,1 Junfang Teng2

1Department of Neurology, Xinxiang Central Hospital, Xinxiang, Henan, People’s Republic of China; 2Department of Neurology, The First Affiliated Hospital of Zhengzhou University, Henan, People’s Republic of China

Background: Alzheimer’s disease (AD) is a slowly progressive neurodegenerative disease which cannot be cured at present. The aim of this study was to assess whether the combined application of β-asarone and tenuigenin could improve the efficacy of memantine in treating moderate-to-severe AD.
Patients and methods: One hundred and fifty-two patients with moderate-to-severe AD were recruited and assigned to two groups. Patients in the experiment group received β-asarone 10 mg/d, tenuigenin 10 mg/d, and memantine 5–20 mg/d. Patients in the control group only received memantine 5–20 mg/d. The Mini Mental State Examination (MMSE), Clinical Dementia Rating Scale (CDR), and Activities of Daily Living (ADL) were used to assess the therapeutic effects. The drug-related adverse events were used to assess the safety and acceptability. Treatment was continued for 12 weeks.
Results: After 12 weeks of treatment, the average MMSE scores, ADL scores, and CDR scores in the two groups were significantly improved. But, compared to the control group, the experimental group had a significantly higher average MMSE score (p<0.00001), lower average ADL score (p=0.00002), and lower average CDR score (p=0.030). Meanwhile, the rates of adverse events were similar between the two groups. Subgroup analysis indicated that the most likely candidates to benefit from this novel method might be the 60–74-years-old male patients with moderate AD.
Conclusion: These results demonstrated that the combined application of β-asarone and tenuigenin could improve the efficacy of memantine in treating moderate-to-severe AD. The clinical applicability of this novel method showed greater promise and should be further explored.

Keywords: Alzheimer’s disease, memantine, β-asarone, tenuigenin
 

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