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. 2022 Apr 22;27(9):2718. doi: 10.3390/molecules27092718

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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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Effect of a 12-week supplementation of CP and CTP on antioxidant metabolism and G6P enzyme activity. (A) Cytokine levels. TNF-α, tumor necrosis factor alpha; IL, interleukin. (B) Catalase (CAT), glutathione (GSH), GR, glutathione peroxidase (GSH-Px), superoxide dismutase (SOD), and paraoxonase (PON) activities in plasma, erythrocytes, and hepatic tissueData are mean ± SE. Significant differences are indicated as follows: * p < 0.05, and ** p < 0.01. YC, young mice control (12 weeks old, n = 6); AC, aging control (60 weeks old, n = 6); CP, collagen peptide (60 weeks old, n = 6); CTP, collagen tripeptide (60 weeks old, n = 6).