Effect of dietary protein on the antioxidant capability and inflammatory response in juvenile Chinese soft-shelled turtles (Pelodiscus sinensis) injected with exogenous hydrogen peroxide
文献类型： 外文期刊
作者： Kou, Hongyan 1 ; Zhao, Yiwen 1 ; Hu, Junru 2 ; Pan, Dehui 1 ; Liu, Xueting 1 ; Ye, Guangren 1 ;
作者机构： 1.Zhongkai Univ Agr & Engn, Coll Anim Sci & Technol, Guangzhou Key Lab Aquat Anim Dis & Waterfowl Breed, Guangzhou 510225, Guangdong, Peoples R China
2.Guangdong Acad Agr Sci, Inst Anim Sci, Guangdong Key Lab Anim Breeding & Nutr, Minist Agr & Rural Affairs,Key Lab Anim Nutr & Fee, Guangzhou 510640, Peoples R China
关键词： Chinese soft-shelled turtle; Pelodiscus sinensis; Antioxidant capacity; Hydrogen peroxide; Inflammatory response; Protein
期刊名称：AQUACULTURE REPORTS （ 影响因子：3.7； 五年影响因子：4.0 ）
ISSN： 2352-5134
年卷期： 2025 年 42 卷
页码：
收录情况： SCI
摘要： This study estimated the influence of dietary protein on the anti-oxidative enzyme activity, mRNA expression of antioxidant-related enzymes, and inflammatory responses in the Chinese soft-shelled turtle (Pelodiscus sinensis) when injected with exogenous hydrogen peroxide (H2O2). Six diets containing 14.38 %, 20.41 %, 26.19 %, 32.23 %, 37.63 %, and 45.23 % protein were fed to turtles over an 8-week breeding trial, after which the turtles were injected intraperitoneally with H2O2. High protein diets (>= 26.19 %) produced the following effects: 1) decreased aspartate aminotransferase and alanine transaminase activities in the serum; 2) decreased lipid per-oxidation (ROS and MDA) levels; 3) improved the GSH-PX, SOD, T-AOC, and CAT levels in the liver; 4) activated the nuclear factor erythroid 2-related factor/Kelch-like ECH-associated protein 1 (Nrf2/Keap1) signaling pathway; 5) enhanced the gene expression of CAT, CuZnSOD, MnSOD, Nrf2, Keap1, GPX1, GPX2, GPX3, and GPX4; 6) repressed the gene expression level of interleukin-1 beta, interleukin-6, interleukin-8, and tumor necrosis factor alpha; and 7) improved the level of interleukin-10 mRNA. Overall, the results showed that feeding the optimal dietary protein level played a protective role against H2O2-mediated oxidative damage by regulating the Nrf2 signaling pathway and inflammation. Using broken-line analysis with ALT and AST activities as the evaluation indicators, the optimal dietary protein requirement for the Chinese soft-shelled turtle was estimated to be 25.78 % for ALT and 26.25 % for AST.
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