PMID- 27394968 OWN - NLM STAT- MEDLINE DCOM- 20170306 LR - 20170812 IS - 1095-9947 (Electronic) IS - 1050-4648 (Linking) VI - 56 DP - 2016 Sep TI - Effects of dietary oxidized konjac glucomannan sulfates (OKGMS) and acidolysis-oxidized konjac glucomannan (A-OKGM) on the immunity and expression of immune-related genes of Schizothorax prenanti. PG - 96-105 LID - S1050-4648(16)30423-5 [pii] LID - 10.1016/j.fsi.2016.07.003 [doi] AB - In the present study, konjac glucomannan (KGM) was degraded by H2O2, and then used trisulfonated sodium amine and HCl, individually, to obtain two kinds of derivatives: oxidized konjac glucomannan sulfates (OKGMS) and acidolysis-oxidized konjac glucomannan (A-OKGM). The effects of two OKGM modified products on the immune parameters and expressions of toll-like receptor 22 (TLR22), myeloid differentiation factor 88 (MyD88) and interferon regulatory factors 7 (IRF7) genes in Schizothorax prenanti were determined. The alternative haemolytic complement (ACH50) activity was found to be significantly increased by the OKGMS diets. The immunoglobulin M (IgM) level was significantly enhanced by the OKGMS diets. The lysozyme activity was significantly increased by both OKGMS and A-OKGM diets. The superoxide dismutase (T-SOD) activity in fish fed with all doses of OKGMS diets was significantly higher than that in fish fed with basal diet. The glutathione peroxidase (GSH-PX) activity in fish fed with 0.8% and 1.6% A-OKGM diets was significantly higher than control group. The malondialdehyde (MDA) level was significantly decreased by both OKGMS and A-OKGM diets. The 0.8% A-OKGM diet significantly up-regulated TLR22 gene expression in the head kidney and spleen. TLR22 gene expression was significantly promoted by all OKGMS diets in the mesonephros and liver. The MyD88 mRNA level in 1.6% A-OKGM group significantly increased in the head kidney. The low dose of OKGMS significantly induced the MyD88 gene expression in the mesonephros, gut and liver, while 0.8% A-OKGM group also showed a significantly enhanced MyD88 mRNA expression in the gut. High dose of OKGMS significantly increased the IRF7 mRNA expression in the mesonephros and spleen. Fish fed with low dose of A-OKGM showed significantly higher expression of IRF7 in the gut and liver. Present study suggested that OKGMS and A-OKGM can act as immunostimulant to improve the immune indexes and up-regulate the immune-related gene expressions. CI - Copyright (c) 2016 Elsevier Ltd. All rights reserved. FAU - Chen, Mingrui AU - Chen M AD - College of Food Science, Sichuan Agricultural University, Yaan, 625014, Sichuan, PR China. FAU - Wang, Hongjie AU - Wang H AD - College of Food Science, Sichuan Agricultural University, Yaan, 625014, Sichuan, PR China. FAU - Yan, Qiuping AU - Yan Q AD - College of Food Science, Sichuan Agricultural University, Yaan, 625014, Sichuan, PR China. FAU - Zheng, Qiaoran AU - Zheng Q AD - College of Food Science, Sichuan Agricultural University, Yaan, 625014, Sichuan, PR China. FAU - Yang, Min AU - Yang M AD - College of Food Science, Sichuan Agricultural University, Yaan, 625014, Sichuan, PR China. FAU - Lv, Zhenzhen AU - Lv Z AD - College of Food Science, Sichuan Agricultural University, Yaan, 625014, Sichuan, PR China. FAU - He, Mei AU - He M AD - College of Food Science, Sichuan Agricultural University, Yaan, 625014, Sichuan, PR China. FAU - Feng, Limei AU - Feng L AD - College of Food Science, Sichuan Agricultural University, Yaan, 625014, Sichuan, PR China. FAU - Zhao, Jiaqi AU - Zhao J AD - College of Food Science, Sichuan Agricultural University, Yaan, 625014, Sichuan, PR China. FAU - Tang, Tingting AU - Tang T AD - College of Food Science, Sichuan Agricultural University, Yaan, 625014, Sichuan, PR China. FAU - Wu, Yinglong AU - Wu Y AD - College of Food Science, Sichuan Agricultural University, Yaan, 625014, Sichuan, PR China. Electronic address: 405135288@qq.com. LA - eng PT - Journal Article DEP - 20160707 PL - England TA - Fish Shellfish Immunol JT - Fish & shellfish immunology JID - 9505220 RN - 0 (Fish Proteins) RN - 0 (Interferon Regulatory Factor-7) RN - 0 (Mannans) RN - 0 (Myeloid Differentiation Factor 88) RN - 0 (Sulfates) RN - 0 (Toll-Like Receptors) RN - 36W3E5TAMG ((1-6)-alpha-glucomannan) SB - IM MH - Animal Feed/analysis MH - Animals MH - *Cyprinidae/genetics/immunology/metabolism MH - Diet/*veterinary MH - *Dietary Supplements/analysis MH - Dose-Response Relationship, Drug MH - Fish Proteins/*genetics/metabolism MH - Gene Expression Regulation/*immunology MH - Immunity, Innate/*immunology MH - Interferon Regulatory Factor-7/genetics/metabolism MH - *Mannans MH - Myeloid Differentiation Factor 88/genetics/metabolism MH - Oxidation-Reduction MH - Random Allocation MH - Sulfates/metabolism MH - Toll-Like Receptors/genetics/metabolism OTO - NOTNLM OT - Acidolysis-oxidized konjac glucomannan OT - Immunity OT - Interferon regulatory factors7 OT - Myeloid differentiation factor 88 OT - Oxidized konjac glucomannan sulfates OT - Toll-like receptor 22 EDAT- 2016/07/11 06:00 MHDA- 2017/03/07 06:00 CRDT- 2016/07/11 06:00 PHST- 2016/04/18 00:00 [received] PHST- 2016/07/05 00:00 [revised] PHST- 2016/07/05 00:00 [accepted] PHST- 2016/07/11 06:00 [entrez] PHST- 2016/07/11 06:00 [pubmed] PHST- 2017/03/07 06:00 [medline] AID - S1050-4648(16)30423-5 [pii] AID - 10.1016/j.fsi.2016.07.003 [doi] PST - ppublish SO - Fish Shellfish Immunol. 2016 Sep;56:96-105. doi: 10.1016/j.fsi.2016.07.003. Epub 2016 Jul 7.