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题名: Dietary riboflavin deficiency decreases immunity and antioxidant capacity, and changes tight junction proteins and related signaling molecules mRNA expression in the gills of young grass carp (Ctenopharyngodon idella)
作者: Chen, Liang1; Feng, Lin1, 2, 3; Jiang, Wei-Dan1, 2, 3; Jiang, Jun1, 2, 3; Wu, Pei1, 2, 3; Zhao, Juan1; Kuang, Sheng-Yao4; Tang, Ling4; Tang, Wu-Neng4; Zhang, Yong-An5; Zhou, Xiao-Qiu1, 2, 3; Liu, Yang1, 2, 3
关键词: Riboflavin deficiency ; Grass carp (Ctenopharyngodon idella) ; Immunity ; Tight junction protein ; Antioxidant system ; Gill
刊名: FISH & SHELLFISH IMMUNOLOGY
发表日期: 2015-08-01
DOI: 10.1016/j.fsi.2015.04.004
卷: 45, 期:2, 页:307-320
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Fisheries ; Immunology ; Marine & Freshwater Biology ; Veterinary Sciences
研究领域[WOS]: Fisheries ; Immunology ; Marine & Freshwater Biology ; Veterinary Sciences
英文摘要: This study investigated the effects of dietary riboflavin on the growth, gill immunity, tight junction proteins, antioxidant system and related signaling molecules mRNA expression of young grass carp (Ctenopharyngodon idella). Fish were fed six diets containing graded levels of riboflavin (0.63-10.04 mg/kg diet) for 8 weeks. The study indicated that riboflavin deficiency decreased lysozyme and acid phosphatase activities, and complement component 3 content in the gills of fish (P < 0.05). Moreover, riboflavin deficiency caused oxidative damage, which might be partly due to decrease copper, zinc superoxide dismutase, catalase, glutathione reductase, glutathione peroxidase and glutathione-S-transferase activities and reduced glutathione content in the gills of fish (P < 0.05). Furthermore, the relative mRNA levels of antimicrobial peptides (liver expressed antimicrobial peptide 2 and Hepcidin), anti-inflammatory cytokines (interleukin 10 and transforming growth factor beta 1), tight junction proteins (Occludin, zonula occludens 1, Claudin-c and Claudin-3), signaling molecules (inhibitor of kappa B alpha, target of rapamycin and NF-E2-related factor 2) and antioxidant enzymes (copper, zinc superoxide dismutase and glutathione reductase) were significantly decreased (P < 0.05) in the gills of fish fed riboflavin-deficient diet. Conversely, the mRNA levels of pro-inflammatory cytokines (tumor necrosis factor alpha, interleukin 8, interferon gamma 2, and interleukin 1 beta), signaling molecules (nuclear factor kappa B p65, I kappa B kinase beta, I kappa B kinase gamma, Kelch-like-ECH-associated protein 1b and myosin light chain kinase) and tight junction protein Claudin-12 were significantly increased (P < 0.05) in the gills of fish fed riboflavin-deficient diet. In addition, this study indicated for the first time that young fish fed a riboflavin-deficient diet exhibited anorexia and poor growth. In conclusion, riboflavin deficiency decreased growth and gill immunity, impaired gill antioxidant system, as well as regulated mRNA expression of gill tight junction proteins and related signaling molecules of fish. Based on percent weight gain, gill lysozyme activity and reduced glutathione content, the dietary riboflavin requirements for young grass carp (275-722 g) were estimated to be 5.85, 7.39 and 6.34 mg/kg diet, respectively. (C) 2015 Elsevier Ltd. All rights reserved.
关键词[WOS]: NF-KAPPA-B ; SALMON SALMO-SALAR ; FRESH-WATER FISH ; INTESTINAL ENZYME-ACTIVITIES ; GOLDFISH CARASSIUS-AURATUS ; CHANNA-PUNCTATA BLOCH ; JUVENILE JIAN ; VAR. JIAN ; OXIDATIVE STRESS ; GENE-EXPRESSION
语种: 英语
WOS记录号: WOS:000358626800013
ISSN号: 1050-4648
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内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/25968
Appears in Collections:水生生物分子与细胞生物学研究中心_期刊论文

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作者单位: 1.Sichuan Agr Univ, Inst Anim Nutr, Chengdu 611130, Sichuan, Peoples R China
2.Sichuan Agr Univ, Fish Nutr & Safety Prod Univ Key Lab Sichuan Prov, Chengdu 611130, Sichuan, Peoples R China
3.Sichuan Agr Univ, China Minist Educ, Key Lab Anim Dis Resistance Nutr, Chengdu 611130, Sichuan, Peoples R China
4.Sichuan Acad Anim Sci, Inst Anim Nutr, Chengdu 610066, Peoples R China
5.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
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