Abstract

The treatment of Alzheimer's Disease (AD) remains a challenge for modern medicine due to its complex pathogenesis. Traditional Chinese Medicine (TCM) has demonstrated significant success in the prevention and treatment of variable medical conditions. For AD pharmacological management, TCM could provide promising approaches. This study aimed to systematically evaluate the current evidence of the effects of TCM therapies on AD. A systematic search of the literature was performed on electronic databases including PubMed, the Cochrane Library, the Chinese National Knowledge Infrastructure (CNKI), and Web of Science. Thirteen studies were included in this review, subject to inclusion and exclusion criteria. Screening, data extraction, and quality assessment were undertaken following the guidelines for Preferred Reporting Items for Systematic Reviews and Meta-Analyses. Our results show that TCM offered a significant improvement in cognitive functioning compared to the control group, measured on both MMSE and ADAS-CoG scales, suggesting its potential utility in slowing cognitive decline and improving cognitive function as compared to conventional drug treatments and placebos. No significant difference was found for scores of neuropsychiatric symptoms (NPI) or ability to perform daily living activities (ADCS-ADL). These findings highlight TCM as a potential adjuvant therapy, in combination with conventional medicine, to improve the effectiveness and reduce the limitations of conventional AD drug regimes. Studies with larger sample sizes, rigorous study designs, accurate long-term reporting, and correlation to neuropathological markers are needed in the future to enhance the evidence base for the use of TCM in AD patients, and to further confirm its efficacy.

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