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Impact of exogenous lipase supplementation on growth, intestinal function, mucosal immune and physical barrier, and related signaling molecules mRNA expression of young grass carp (Ctenopharyngodon idella).
Fish Shellfish Immunol. 2016 Aug; 55:88-105.FS

Abstract

This study investigated the effects of exogenous lipase supplementation on the growth performance, intestinal growth and function, immune response and physical barrier function, and related signaling molecules mRNA expression of young grass carp (Ctenopharyngodon idella). A total of 450 grass carp (255.02 ± 0.34 g) were fed five diets for 60 days. There were 5 dietary treatments that included a normal protein and lipid diet containing 30% crude protein (CP) with 5% ether extract (EE), and the low-protein and high-lipid diets (28% CP, 6% EE) supplemented with graded levels of exogenous lipase supplementation activity at 0, 1193, 2560 and 3730 U/kg diet. The results indicated that compared with a normal protein and lipid diet (30% CP, 5% EE), a low-protein and high-lipid diet (28% CP, 6% EE) (un-supplemented lipase) improved lysozyme activities and complement component 3 contents in the distal intestine (DI), interleukin 10 mRNA expression in the proximal intestine (PI), and glutathione S-transferases activity and glutathione content in the intestine of young grass carp. In addition, in low-protein and high-lipid diets, optimal exogenous lipase supplementation significantly increased acid phosphatase (ACP) activities and complement component 3 (C3) contents (P < 0.05), up-regulated the relative mRNA levels of antimicrobial peptides (liver expressed antimicrobial peptide 2 and hepcidin) and anti-inflammatory cytokines (interleukin 10 and transforming growth factor β1) and signaling molecules inhibitor protein-κBα (IκBα) and target of rapamycin (TOR) (P < 0.05), down-regulated the mRNA levels of pro-inflammatory cytokines (tumor necrosis factor α, interleukin 8, interferon γ2, and interleukin 1β), and signaling molecules (nuclear factor kappa B p65, IκB kinase β, IκB kinase γ) (P < 0.05) in the intestine of young grass carp. Moreover, optimal exogenous lipase supplementation significantly decreased reactive oxygen species (ROS), malondialdehyde (MDA) and protein carbonyl (PC) contents (P < 0.05), improved the activities of anti-superoxide anion (ASA) and anti-hydroxyl radical (AHR), glutathione content, and the activities and mRNA levels of antioxidant enzymes (copper/zinc superoxide dismutase, manganese superoxide dismutase, catalase, glutathione peroxidase, glutathione S-transferases and glutathione reductase) (P < 0.05), up-regulated signaling molecule NF-E2-related factor 2 (Nrf2) (P < 0.05), down-regulated signaling molecules (Kelch-like-ECH-associated protein 1a, Kelch-like-ECH-associated protein 1b) (P < 0.05) in the intestine of young grass carp. Furthermore, optimal exogenous lipase supplementation significantly elevated the mRNA levels of tight junction proteins (Occludin, zonula occludens 1, Claudin b, Claudin c and Claudin 3) (P < 0.05), down-regulated the mRNA levels of tight junction proteins (Claudin 12 and Claudin 15a) (P < 0.05), down-regulated signaling molecules myosin light chain kinase (P < 0.05) in the intestine of young grass carp. In conclusion, dietary lipid could partially spare protein, and the low-protein and high-lipid diet could improve growth, intestinal growth and function, immune response and antioxidant capability of fish. Meanwhile, in high-fat and low-protein diets, optimal exogenous lipase supplementation improved growth, intestinal growth and function, intestinal immunity, physical barrier, and regulated the mRNA expression of related signal molecules of fish. The optimal level of exogenous lipase supplementation in young grass carp (255-771 g) was estimated to be 1193 U kg(-1) diet.

Authors+Show Affiliations

Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China.Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China; Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611130, China.Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China; Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611130, China.Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China; Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611130, China.Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China; Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611130, China.Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China; Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611130, China.Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China; Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611130, China.Guangdong Vtr Bio-tech Co., Ltd., Zhuhai 519060, China.Animal Nutrition Institute, Sichuan Academy of Animal Science, Chengdu 610066, China.Animal Nutrition Institute, Sichuan Academy of Animal Science, Chengdu 610066, China.Animal Nutrition Institute, Sichuan Academy of Animal Science, Chengdu 610066, China.Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China.Animal Nutrition Institute, Sichuan Agricultural University, Chengdu 611130, China; Fish Nutrition and Safety Production University Key Laboratory of Sichuan Province, Sichuan Agricultural University, Chengdu 611130, China; Key Laboratory for Animal Disease-Resistance Nutrition of China Ministry of Education, Sichuan Agricultural University, Chengdu 611130, China. Electronic address: xqzhouqq@tom.com.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

27164217

Citation

Liu, Sen, et al. "Impact of Exogenous Lipase Supplementation On Growth, Intestinal Function, Mucosal Immune and Physical Barrier, and Related Signaling Molecules mRNA Expression of Young Grass Carp (Ctenopharyngodon Idella)." Fish & Shellfish Immunology, vol. 55, 2016, pp. 88-105.
Liu S, Feng L, Jiang WD, et al. Impact of exogenous lipase supplementation on growth, intestinal function, mucosal immune and physical barrier, and related signaling molecules mRNA expression of young grass carp (Ctenopharyngodon idella). Fish Shellfish Immunol. 2016;55:88-105.
Liu, S., Feng, L., Jiang, W. D., Liu, Y., Jiang, J., Wu, P., Zeng, Y. Y., Xu, S. D., Kuang, S. Y., Tang, L., Tang, W. N., Zhang, Y. A., & Zhou, X. Q. (2016). Impact of exogenous lipase supplementation on growth, intestinal function, mucosal immune and physical barrier, and related signaling molecules mRNA expression of young grass carp (Ctenopharyngodon idella). Fish & Shellfish Immunology, 55, 88-105. https://doi.org/10.1016/j.fsi.2016.05.006
Liu S, et al. Impact of Exogenous Lipase Supplementation On Growth, Intestinal Function, Mucosal Immune and Physical Barrier, and Related Signaling Molecules mRNA Expression of Young Grass Carp (Ctenopharyngodon Idella). Fish Shellfish Immunol. 2016;55:88-105. PubMed PMID: 27164217.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Impact of exogenous lipase supplementation on growth, intestinal function, mucosal immune and physical barrier, and related signaling molecules mRNA expression of young grass carp (Ctenopharyngodon idella). AU - Liu,Sen, AU - Feng,Lin, AU - Jiang,Wei-Dan, AU - Liu,Yang, AU - Jiang,Jun, AU - Wu,Pei, AU - Zeng,Yun-Yun, AU - Xu,Shu-De, AU - Kuang,Sheng-Yao, AU - Tang,Ling, AU - Tang,Wu-Neng, AU - Zhang,Yong-An, AU - Zhou,Xiao-Qiu, Y1 - 2016/05/07/ PY - 2015/12/14/received PY - 2016/04/30/revised PY - 2016/05/04/accepted PY - 2016/5/11/entrez PY - 2016/5/11/pubmed PY - 2016/5/11/medline KW - Antioxidant capability KW - Exogenous lipase supplementation KW - Grass carp (Ctenopharyngodon idella) KW - Immune response KW - Intestine KW - Tight junction SP - 88 EP - 105 JF - Fish & shellfish immunology JO - Fish Shellfish Immunol VL - 55 N2 - This study investigated the effects of exogenous lipase supplementation on the growth performance, intestinal growth and function, immune response and physical barrier function, and related signaling molecules mRNA expression of young grass carp (Ctenopharyngodon idella). A total of 450 grass carp (255.02 ± 0.34 g) were fed five diets for 60 days. There were 5 dietary treatments that included a normal protein and lipid diet containing 30% crude protein (CP) with 5% ether extract (EE), and the low-protein and high-lipid diets (28% CP, 6% EE) supplemented with graded levels of exogenous lipase supplementation activity at 0, 1193, 2560 and 3730 U/kg diet. The results indicated that compared with a normal protein and lipid diet (30% CP, 5% EE), a low-protein and high-lipid diet (28% CP, 6% EE) (un-supplemented lipase) improved lysozyme activities and complement component 3 contents in the distal intestine (DI), interleukin 10 mRNA expression in the proximal intestine (PI), and glutathione S-transferases activity and glutathione content in the intestine of young grass carp. In addition, in low-protein and high-lipid diets, optimal exogenous lipase supplementation significantly increased acid phosphatase (ACP) activities and complement component 3 (C3) contents (P < 0.05), up-regulated the relative mRNA levels of antimicrobial peptides (liver expressed antimicrobial peptide 2 and hepcidin) and anti-inflammatory cytokines (interleukin 10 and transforming growth factor β1) and signaling molecules inhibitor protein-κBα (IκBα) and target of rapamycin (TOR) (P < 0.05), down-regulated the mRNA levels of pro-inflammatory cytokines (tumor necrosis factor α, interleukin 8, interferon γ2, and interleukin 1β), and signaling molecules (nuclear factor kappa B p65, IκB kinase β, IκB kinase γ) (P < 0.05) in the intestine of young grass carp. Moreover, optimal exogenous lipase supplementation significantly decreased reactive oxygen species (ROS), malondialdehyde (MDA) and protein carbonyl (PC) contents (P < 0.05), improved the activities of anti-superoxide anion (ASA) and anti-hydroxyl radical (AHR), glutathione content, and the activities and mRNA levels of antioxidant enzymes (copper/zinc superoxide dismutase, manganese superoxide dismutase, catalase, glutathione peroxidase, glutathione S-transferases and glutathione reductase) (P < 0.05), up-regulated signaling molecule NF-E2-related factor 2 (Nrf2) (P < 0.05), down-regulated signaling molecules (Kelch-like-ECH-associated protein 1a, Kelch-like-ECH-associated protein 1b) (P < 0.05) in the intestine of young grass carp. Furthermore, optimal exogenous lipase supplementation significantly elevated the mRNA levels of tight junction proteins (Occludin, zonula occludens 1, Claudin b, Claudin c and Claudin 3) (P < 0.05), down-regulated the mRNA levels of tight junction proteins (Claudin 12 and Claudin 15a) (P < 0.05), down-regulated signaling molecules myosin light chain kinase (P < 0.05) in the intestine of young grass carp. In conclusion, dietary lipid could partially spare protein, and the low-protein and high-lipid diet could improve growth, intestinal growth and function, immune response and antioxidant capability of fish. Meanwhile, in high-fat and low-protein diets, optimal exogenous lipase supplementation improved growth, intestinal growth and function, intestinal immunity, physical barrier, and regulated the mRNA expression of related signal molecules of fish. The optimal level of exogenous lipase supplementation in young grass carp (255-771 g) was estimated to be 1193 U kg(-1) diet. SN - 1095-9947 UR - https://www.unboundmedicine.com/medline/citation/27164217/Impact_of_exogenous_lipase_supplementation_on_growth_intestinal_function_mucosal_immune_and_physical_barrier_and_related_signaling_molecules_mRNA_expression_of_young_grass_carp__Ctenopharyngodon_idella__ L2 - https://linkinghub.elsevier.com/retrieve/pii/S1050-4648(16)30311-4 DB - PRIME DP - Unbound Medicine ER -