Article ; Online: Protective effect of a hydromethanolic extract from Fraxinus excelsior L. bark against a rat model of aluminum chloride-induced Alzheimer's disease: Relevance to its anti-inflammatory and antioxidant effects.
2024 Volume 323, Page(s) 117708
Abstract: Ethnopharmacological relevance: Fraxinus excelsior L. (FE), commonly known as the ash, belongs to the Oleaceae family and has shown several pharmacological and biological properties, such as antioxidant, immunomodulatory, neuroprotective, and anti- ... ...
Abstract | Ethnopharmacological relevance: Fraxinus excelsior L. (FE), commonly known as the ash, belongs to the Oleaceae family and has shown several pharmacological and biological properties, such as antioxidant, immunomodulatory, neuroprotective, and anti-inflammatory effects. It has also attracted the most attention toward neuroinflammation. Moreover, FE bark and leaves have been used to treat neurological disorders, aging, neuropathic pain, urinary complaints, and articular pain in traditional and ethnomedicine. Alzheimer's disease (AD) is a multifactorial neurodegenerative disorder resulting from the involvement of amyloid-beta, metal-induced oxidative stress, and neuroinflammation. Aim of the study: The objective of the current study was to assess the neuroprotective effects of hydromethanolic extract from FE bark in an AlCl Materials and methods: The maceration process was utilized to prepare the hydromethanolic extract of FE bark, and characterized by LC-MS/MS. To assess the anti-AD effects of the FE extract, rats were categorized into five different groups, AlCl Results: LC-MS/MS analysis indicated the presence of coumarins, including isofraxidin7-O-diglucoside in the methanolic extract of FE as a new isofraxidin derivative in this genus. FE significantly improved memory and cognitive function, maintained weight, prevented neuronal damages, and preserved the hippocampus's histological features, as demonstrated by behavioral tests and histopathological analysis. FE increased anti-inflammatory MMP-2 activity, whereas it decreased that of inflammatory MMP-9. Moreover, FE increased plasma antioxidant capacity by enhancing CAT and GSH while decreasing nitrite levels in the serum of treated groups. In comparison between the treated groups, the rats that received high doses of the FE extract (200 mg/kg) showed the highest therapeutic effect. Conclusion: FE rich in coumarins could be an effective anti-AD adjunct agent, passing through antioxidant and anti-inflammatory pathways. These results encourage further studies for the development of this extract as a promising agent in preventing, managing, or treating AD and related diseases. |
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MeSH term(s) | Rats ; Animals ; Aluminum Chloride/pharmacology ; Aluminum Chloride/therapeutic use ; Antioxidants/pharmacology ; Antioxidants/therapeutic use ; Antioxidants/metabolism ; Alzheimer Disease/chemically induced ; Alzheimer Disease/drug therapy ; Alzheimer Disease/metabolism ; Fraxinus/metabolism ; Neuroinflammatory Diseases ; Plant Bark/metabolism ; Chromatography, Liquid ; Rats, Wistar ; Disease Models, Animal ; Tandem Mass Spectrometry ; Oxidative Stress ; Anti-Inflammatory Agents/pharmacology ; Anti-Inflammatory Agents/therapeutic use ; Coumarins/pharmacology ; Neuroprotective Agents/pharmacology ; Neuroprotective Agents/therapeutic use |
Chemical Substances | Aluminum Chloride (3CYT62D3GA) ; Antioxidants ; Anti-Inflammatory Agents ; Coumarins ; Neuroprotective Agents |
Language | English |
Publishing date | 2024-01-04 |
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.2024.117708 |
Database | MEDical Literature Analysis and Retrieval System OnLINE |
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