Article ; Online: Neuroprotective effect of the traditional decoction Tian-Si-Yin against Alzheimer's disease via suppression of neuroinflammation.
2023 Volume 321, Page(s) 117569
Abstract: ... neurodegenerative disease among old adults. As a traditional Chinese medicine, the herbal decoction Tian-Si-Yin consists ... Interestingly, Tian-Si-Yin has also been used to treat dementia, depression and other neurological conditions ... Aim of the study: To evaluate the therapeutic effect of the herbal formula Tian-Si-Yin against AD and ...
| Abstract | Ethnopharmacological relevance: Alzheimer's disease (AD) is the most prevalent neurodegenerative disease among old adults. As a traditional Chinese medicine, the herbal decoction Tian-Si-Yin consists of Morinda officinalis How. and Cuscuta chinensis Lam., which has been widely used to nourish kidney. Interestingly, Tian-Si-Yin has also been used to treat dementia, depression and other neurological conditions. However, its therapeutic potential for neurodegenerative diseases such as AD and the underlying mechanisms remain unclear. Aim of the study: To evaluate the therapeutic effect of the herbal formula Tian-Si-Yin against AD and to explore the underlying mechanisms. Materials and methods: The N2a cells treated with amyloid β (Aβ) peptide or overexpressing amyloid precursor protein (APP) were used to establish cellular models of AD. The in vivo anti-AD effects were evaluated by using Caenorhabditis elegans and 3 × Tg-AD mouse models. Tian-Si-Yin was orally administered to the mice for 8 weeks at a dose of 10, 15 or 20 mg/kg/day, respectively. Its protective role on memory deficits of mice was examined using the Morris water maze and fear conditioning tests. Network pharmacology, proteomic analysis and ultra-high performance liquid chromatography-mass spectrometry/mass spectrometry (UHPLC-MS/MS) were used to explore the underlying molecular mechanisms, which were further investigated by Western blotting and immunohistochemistry. Results: Tian-Si-Yin was shown to improve cell viability of Aβ-treated N2a cells and APP-expressing N2a-APP cells. Tian-Si-Yin was also found to reduce ROS level and extend lifespan of transgenic AD-like C. elegans model. Oral administration of Tian-Si-Yin at medium dose was able to effectively rescue memory impairment in 3 × Tg mice. Tian-Si-Yin was further shown to suppress neuroinflammation by inhibition of glia cell activation and downregulation of inflammatory cytokines, diminishing tau phosphoralytion and Aβ deposition in the mice. Using UHPLC-MS/MS and network pharmacology technologies, 17 phytochemicals from 68 components of Tian-Si-Yin were identified as potential anti-AD components. MAPK1, BRAF, TTR and Fyn were identified as anti-AD targets of Tian-Si-Yin from network pharmacology and mass spectrum. Conclusions: This study has established the protective effect of Tian-Si-Yin against AD and demonstrates that Tian-Si-Yin is capable of improving Aβ level, tau pathology and synaptic disorder by regulating inflammatory response. |
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| MeSH term(s) | Mice ; Animals ; Alzheimer Disease/pathology ; Amyloid beta-Peptides/metabolism ; Neuroprotective Agents/pharmacology ; Neuroprotective Agents/therapeutic use ; Neuroinflammatory Diseases ; Neurodegenerative Diseases/drug therapy ; Caenorhabditis elegans/metabolism ; Proteomics ; Tandem Mass Spectrometry ; Mice, Transgenic ; Maze Learning ; Amyloid beta-Protein Precursor/metabolism ; Memory Disorders/drug therapy ; Disease Models, Animal |
| Chemical Substances | Amyloid beta-Peptides ; Neuroprotective Agents ; Amyloid beta-Protein Precursor |
| Language | English |
| Publishing date | 2023-12-10 |
| Publishing country | Ireland |
| Document type | Journal Article |
| ZDB-ID | 134511-4 |
| ISSN | 1872-7573 ; 0378-8741 |
| ISSN (online) | 1872-7573 |
| ISSN | 0378-8741 |
| DOI | 10.1016/j.jep.2023.117569 |
| Database | MEDical Literature Analysis and Retrieval System OnLINE |
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