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Yan L, Jin Y, Pan J, He X, Zhong S, Zhang R, Choi L, Su W, Chen J. 7,8-Dihydroxycoumarin Alleviates Synaptic Loss by Activated PI3K-Akt-CREB-BDNF Signaling in Alzheimer's Disease Model Mice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:7130-7138. [PMID: 35657168 PMCID: PMC9204815 DOI: 10.1021/acs.jafc.2c02140] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 05/15/2022] [Accepted: 05/18/2022] [Indexed: 06/15/2023]
Abstract
Alzheimer's disease (AD) is a progressive neurodegenerative disorder and is clinically characterized by the impairment of memory and cognition. Accumulation of β-amyloid (Aβ) in the brain is considered as a key process in the development of AD because it impairs the synapses' function to impair memory formation. Recent research studies have indicated that a group of edible plant-derived Thymelaeaceae compounds known as coumarin may exert particularly powerful actions on alleviating learning and memory impairment. 7,8-Dithydroxycoumarin (7,8-DHC), a bioactive component of coumarin derived from Thymelaeaceae, showed its function in neuroprotection before. In this study, we found that 7,8-DHC was able to mitigate Aβ accumulation via reducing the level of BACE1 and increasing the level of ADAM17 and ADAM10. More importantly, we found that 7,8-DHC could mitigate memory impairment, promote the dendrite branch density, and increase synaptic protein expression via activating PI3K-Akt-CREB-BDNF signaling. Hence, these results suggested that 7,8-DHC represented a novel bioactive therapeutic agent in mitigating Aβ deposition and synaptic loss in the process of treating AD.
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Affiliation(s)
- Li Yan
- Formula-Pattern
Research Center, School of Traditional Chinese Medicine, Jinan University, Guangzhou 510632, China
| | - Yufan Jin
- Guangdong
Engineering & Technology Research Center for Quality and Efficacy
Reevaluation of Post-Market Traditional Chinese Medicine, Guangdong
Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, No. 135, Xingang Xi Road, Guangzhou 510275, China
| | - Junping Pan
- Department
of Pharmacology, School of Basic Medicine, Jinan University, Guangzhou 510632, China
| | - Xiang He
- Guangdong
Engineering & Technology Research Center for Quality and Efficacy
Reevaluation of Post-Market Traditional Chinese Medicine, Guangdong
Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, No. 135, Xingang Xi Road, Guangzhou 510275, China
| | - Shiqian Zhong
- International
School, Jinan University, No. 601, West Huangpu Avenue, Guangzhou 510632, China
| | - Rongcai Zhang
- International
School, Jinan University, No. 601, West Huangpu Avenue, Guangzhou 510632, China
| | - LokLam Choi
- International
School, Jinan University, No. 601, West Huangpu Avenue, Guangzhou 510632, China
| | - Weiwei Su
- Guangdong
Engineering & Technology Research Center for Quality and Efficacy
Reevaluation of Post-Market Traditional Chinese Medicine, Guangdong
Key Laboratory of Plant Resources, School of Life Sciences, Sun Yat-sen University, No. 135, Xingang Xi Road, Guangzhou 510275, China
| | - Jiaxu Chen
- Formula-Pattern
Research Center, School of Traditional Chinese Medicine, Jinan University, Guangzhou 510632, China
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Han T, Zhang S, Wei R, Jia G, Wang B, Xu Q, Su J, Jiang C, Jin C. Synthesis and biological evaluation of scutellarein derivatives as neuroprotective agents via activating Nrf2/HO-1 pathway. Fitoterapia 2022; 160:105207. [DOI: 10.1016/j.fitote.2022.105207] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 05/05/2022] [Accepted: 05/05/2022] [Indexed: 11/26/2022]
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