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

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Abstract Title:

Protective Effects of Blueberry Anthocyanins against HO-Induced Oxidative Injuries in Human Retinal Pigment Epithelial Cells.

Abstract Source:

J Agric Food Chem. 2018 Feb 21 ;66(7):1638-1648. Epub 2018 Feb 7. PMID: 29393642

Abstract Author(s):

Wu-Yang Huang, Han Wu, Da-Jing Li, Jiang-Feng Song, Ya-Dong Xiao, Chun-Quan Liu, Jian-Zhong Zhou, Zhong-Quan Sui

Article Affiliation:

Wu-Yang Huang

Abstract:

Blueberry anthocyanins are considered protective of eye health because of their recognized antioxidant properties. In this study, blueberry anthocyanin extract (BAE), malvidin (Mv), malvidin-3-glucoside (Mv-3-glc), and malvidin-3-galactoside (Mv-3-gal) all reduced HO-induced oxidative stress by decreasing the levels of reactive oxygen species and malondialdehyde and increasing the levels of superoxide dismutase, catalase, and glutathione peroxidase in human retinal pigment epithelial cells. BAE and the anthocyanin standards enhanced cell viability from 63.69± 3.36 to 86.57 ± 6.92% (BAE), 115.72 ± 23.41% (Mv), 98.15 ± 9.39% (Mv-3-glc), and 127.97 ± 20.09% (Mv-3-gal) and significantly inhibited cell apoptosis (P<0.01 for all). Mitogen-activated-protein-kinase pathways, including ERK1/2 and p38, were involved in the bioactivities. In addition, the anthocyanins decreased vascular-endothelial-cell-growth-factor levels and activated Akt-signal pathways. These combined results supported the hypothesis that blueberry anthocyanins could inhibit the induction and progression of age-related macular degeneration (AMD) through antioxidant mechanisms.

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

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