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Article Publish Status: FREE
Abstract Title:

Synergistic Action of Flavonoids, Baicalein, and Daidzein in Estrogenic and Neuroprotective Effects: A Development of Potential Health Products and Therapeutic Drugs against Alzheimer's Disease.

Abstract Source:

Evid Based Complement Alternat Med. 2013 ;2013:635694. Epub 2013 Aug 24. PMID: 24058373

Abstract Author(s):

Roy C Y Choi, Judy T T Zhu, Amanda W Y Yung, Pinky S C Lee, Sherry L Xu, Ava J Y Guo, Kevin Y Zhu, Tina T X Dong, Karl W K Tsim

Article Affiliation:

Roy C Y Choi

Abstract:

Despite the classical hormonal effect, estrogen has been reported to mediate neuroprotection in the brain, which leads to the searching of estrogen-like substances for treating neurodegenerative diseases. Flavonoids, a group of natural compounds, are well known to possess estrogenic effects and used to substitute estrogen, that is, phytoestrogen. Flavonoid serves as one of the potential targets for the development of natural supplements and therapeutic drugs against different diseases. The neuroprotection activity of flavonoids was chosen for a possible development of anti-Alzheimer's drugs or food supplements. The estrogenic activity of two flavonoids, baicalein and daidzein, were demonstrated by their strong abilities in stimulating estrogen receptor phosphorylation and transcriptional activation of estrogen responsive element in MCF-7 breast cells. The neuroprotection effects of flavonoids againstβ -amyloid (A β ) were revealed by their inhibition effects on in vitro A β aggregation and A β -induced cytotoxicity in PC12 neuronal cells. More importantly, the estrogenic and neuroprotective activities of individual flavonoid could be further enhanced by the cotreatment in the cultures. Taken together, this synergistic effect of baicalein and daidzein might serve as a method to improve the therapeutic efficacy of different flavonoids against A β , which might be crucial in developing those flavonoidsin treating Alzheimer's disease in the future.

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Sayer Ji
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