Phenylalanine Plays Important Roles in Regulating the Capacity of Intestinal Immunity, Antioxidants and Apoptosis in Largemouth Bass (Micropterus salmoides)
文献类型： 外文期刊
作者： Yi, Changguo 1 ; Liang, Hualiang 1 ; Huang, Dongyu 1 ; Yu, Heng 1 ; Xue, Chunyu 1 ; Gu, Jiaze 1 ; Chen, Xiaoru 3 ; Wang, Yongli 3 ; Ren, Mingchun 1 ; Zhang, Lu 3 ;
作者机构： 1.Nanjing Agr Univ, Wuxi Fisheries Coll, Wuxi 214081, Peoples R China
2.Chinese Acad Fishery Sci, Freshwater Fisheries Res Ctr, Minist Agr & Rural Affairs, Key Lab Integrated Rice Fish Farming Ecol, Wuxi 214081, Peoples R China
3.Tongwei Agr Dev Co Ltd, Minist Agr & Rural Affairs, Key Lab Nutr & Hlth Culture Aquat Livestock & Poul, Hlth Aquaculture Key Lab Sichuan Prov, Chengdu 610093, Peoples R China
关键词： dietary phenylalanine level; largemouth bass; immunity; antioxidants; apoptosis
期刊名称：ANIMALS （ 影响因子：3.0； 五年影响因子：3.2 ）
ISSN： 2076-2615
年卷期： 2023 年 13 卷 18 期
页码：
收录情况： SCI
摘要： This experiment was planned to explore the role of dietary phenylalanine levels in intestinal immunity, antioxidant activity and apoptosis in largemouth bass (Micropterus salmoides). Six iso-nitrogen and iso-energy diets with phenylalanine levels of 1.45% (DPHE1), 1.69% (DPHE2), 1.98% (DPHE3), 2.21% (DPHE4), 2.48% (DPHE5) and 2.76% (DPHE6) were designed. Juvenile largemouth bass were fed the experimental diet for 8 weeks. In this study, the DPHE5 group increased the expression of intestinal antioxidant genes in largemouth bass (p < 0.05), and the increase of antioxidant enzyme activities and content of related substances was most concentrated in the DPHE3 and DPHE4 groups (p < 0.05). The results of plasma biochemistry were similar to that of enzyme activity. The expression of genes related to the TOR signalling pathway mainly increased significantly in the DPHE5 group (p < 0.05). Similarly, the expression of inflammatory factors, as well as apoptotic factors, also showed significant increases in the DPHE5 group (p < 0.05). In conclusion, unbalanced phenylalanine in the diet could lead to a decrease in intestinal immune and antioxidant capacity and also cause a decline in the aggravation of intestinal cell apoptosis.
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