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L-carnitine inclusion manipulated metabolic stress in terms of cell viability, oxidative capacity, immune response and anti-apoptotic factors during thermal exposure in fathead minnow muscle cell line
Aquaculture Nutrition ( IF 3.0 ) Pub Date : 2021-05-01 , DOI: 10.1111/anu.13259
Xiu‐mei Chen 1, 2 , Abdallah Ghonimy 3, 4, 5 , Qiu‐ju Wang 1, 2 , Zhi‐xin Guo 6 , Ting Yu 1 , Yue Ma 1, 2 , Gui‐qin Wang 1, 2 , Mohammed Hamdy Farouk 7 , Dong‐ming Zhang 1, 2, 6
Affiliation  

Thermal exposure induces metabolic rate with elevated ROS level. Fathead minnow (FHM) muscle cell line was used to investigate the effect of L-carnitine on metabolic stress during thermal exposure. First experiment, four temperature levels (27, 32, 37 and 42°C) were conducted to determine the critical temperature which was indicated by changes in oxidative parameters at 0, 2, 6 and 12 h. Second experiment, the determined critical temperature (37°C) was conducted with different L-carnitine levels (0.1, 0.5 and 1.0 mM) to evaluate the mitigation effect of L-carnitine against heat stress, L-carnitine and temperatures were 0.0 mM and 27 and 37°C as control treatments. First experiment, oxidative parameters (T-SOD, GSH-PX and MDA) showed a significant difference at 37 and 42°C by 2 h exposure compared to the control (27°C, 2 h). Second experiment, LC (0.5–1.0 mM) showed no significant differences for CAT, GSH and MDA activities at 6 h- and 12-LC exposures, and for SOD at 12 h-LC exposure compared to the control (0.0 mM, 27°C). At immune level, LC (1 mM) showed no significant difference for LZM level at 6 h- and 12-LC exposure levels compared to the control (0.0 mM, 27°C). While apoptotic factors (HSP70 and NrF2) showed a non-significant difference at 6 h-LC (0.1 mM) compared to the control (0.0 mM–6 h, 27°C). Altogether, LC inclusions (0.5–1 mM) were effective supplementation levels against metabolic stress at 37°C in FHM cell line.

中文翻译:

左旋肉碱内含物在黑头鲦鱼肌肉细胞系热暴露期间在细胞活力、氧化能力、免疫反应和抗凋亡因子方面操纵代谢应激

热暴露诱导代谢率升高,ROS 水平升高。黑头鲦鱼 (FHM) 肌肉细胞系用于研究左旋肉碱对热暴露期间代谢应激的影响。第一个实验,进行了四个温度水平(27、32、37 和 42°C)以确定临界温度,该温度由 0、2、6 和 12 小时时氧化参数的变化表示。第二个实验,确定的临界温度(37°C)是用不同的左旋肉碱水平(0.1、0.5 和 1.0 mM)进行的,以评估左旋肉碱对热应激的缓解作用,左旋肉碱和温度分别为 0.0 mM 和27°C 和 37°C 作为对照处理。第一个实验,氧化参数(T-SOD、GSH-PX 和 MDA)在 37°C 和 42°C 下暴露 2 小时与对照(27°C,2 小时)相比显示出显着差异。第二个实验,LC (0.5–1.0 mM) 在 6 小时和 12-LC 暴露时的 CAT、GSH 和 MDA 活性以及在 12 小时-LC 暴露时的 SOD 与对照(0.0 mM,27°C)相比没有显着差异。在免疫水平,与对照(0.0 mM,27°C)相比,LC (1 mM) 在 6 小时和 12-LC 暴露水平下的 LZM 水平没有显着差异。而凋亡因子(HSP70 和 NrF2)在 6 h-LC (0.1 mM) 与对照(0.0 mM–6 h,27°C)相比显示出非显着差异。总之,LC 内含物 (0.5-1 mM) 是 FHM 细胞系中 37°C 时对抗代谢应激的有效补充水平。与对照(0.0 mM,27°C)相比,LC (1 mM) 在 6 小时和 12-LC 暴露水平下的 LZM 水平没有显着差异。而凋亡因子(HSP70 和 NrF2)在 6 h-LC (0.1 mM) 与对照(0.0 mM–6 h,27°C)相比显示出非显着差异。总之,LC 内含物 (0.5-1 mM) 是 FHM 细胞系中 37°C 时对抗代谢应激的有效补充水平。与对照(0.0 mM,27°C)相比,LC (1 mM) 在 6 小时和 12-LC 暴露水平下的 LZM 水平没有显着差异。而凋亡因子(HSP70 和 NrF2)在 6 h-LC (0.1 mM) 与对照(0.0 mM–6 h,27°C)相比显示出非显着差异。总之,LC 内含物 (0.5-1 mM) 是 FHM 细胞系中 37°C 时对抗代谢应激的有效补充水平。
更新日期:2021-05-01
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