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. 2022 Nov 2;27(21):7475. doi: 10.3390/molecules27217475

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© 2022 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).

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The antioxidant activities of the different blueberry extracts samples and monomer compound cyanidin-3-o-glucoside (C3G). (A) The Ferric-reducing antioxidant power (FRAP) (a) and DPPH radical scavenging capacity (DPPH) (b) of the different blueberry extracts samples; the concentration of blueberry extracts samples was 200 μM; (B) Effects of C3G treatment on GSSG (a) and GSH levels (b) in the ARPE-19 cells; (C) Effects of C3G treatment on the gene-expression of Nrf2 (a) and NQO1 (b) in the ARPE-19 cells. Data represent the mean ± standard deviation (n = 3). Different letters were significantly different (p < 0.05). (*) p ≤ 0.05, (**) p ≤ 0.01, and (***) p ≤ 0.001 compared with the high glucose (HG) only group.

The antioxidant activities of the different blueberry extracts samples and monomer compound cyanidin-3-o-glucoside (C3G). (A) The Ferric-reducing antioxidant power (FRAP) (a) and DPPH radical scavenging capacity (DPPH) (b) of the different blueberry extracts samples; the concentration of blueberry extracts samples was 200 μM; (B) Effects of C3G treatment on GSSG (a) and GSH levels (b) in the ARPE-19 cells; (C) Effects of C3G treatment on the gene-expression of Nrf2 (a) and NQO1 (b) in the ARPE-19 cells. Data represent the mean ± standard deviation (n = 3). Different letters were significantly different (p < 0.05). (*) p ≤ 0.05, (**) p ≤ 0.01, and (***) p ≤ 0.001 compared with the high glucose (HG) only group.