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Depression: 21st Century Solutions + The Dark Side of Wheat

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Article Publish Status: FREE
Abstract Title:

Protective effect of Nelumbo nucifera extracts on beta amyloid protein induced apoptosis in PC12 cells, in vitro model of Alzheimer's disease.

Abstract Source:

J Food Drug Anal. 2018 Jan ;26(1):172-181. Epub 2017 Mar 17. PMID: 29389553

Abstract Author(s):

Alaganandam Kumaran, Cheng Chang Ho, Lucy Sun Hwang

Article Affiliation:

Alaganandam Kumaran

Abstract:

Alzheimer's disease (AD) is the most common cause of dementia in the elderly.β-Amyloid (Aβ) has been proposed to play a role in the pathogenesis of AD. Deposits of insoluble Aβ are found in the brains of patients with AD and are one of the pathological hallmarks of the disease, but the underlying signaling pathways are poorly understood. In order to develop antidementia agents with potential therapeutic value, we examined the inhibitory effect of the Nelumbo nucifera seed embryo extracts on to the aggregated amyloid β peptide (agg Aβ)-induced damage of differentiated PC-12 cells (dPC-12), a well-known cell model for AD. In the present study, seed embryos of N. nucifera were extracted with 70% methanol in water and then separated into hexane, ethyl acetate, n-butanol, and water layers. Among them, only the n-butanol layer showed strong activity and was therefore subjected to separation on Sephadex LH-20 chromatography. Two fractions showing potent activity were found to significantly inhibit Aβtoxicity on dPC-12 cells in increasing order of concentration (10-50 μg/mL). Further purification and characterization of these active fractions identified them to be flavonoids such as rutin, orientin, isoorientin, isoquercetrin, and hyperoside. 2,2-Diphenyl-1-picrylhydrazyl hydrate scavenging activity of the extracts was also carried out to ascertain the possible mechanism of the activity.

Study Type : In Vitro Study

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Sayer Ji
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Depression: 21st Century Solutions + The Dark Side of Wheat

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