+Advanced Search
Hui Zhao, Yan'er Luo, Yongan Zhang, Xiaoxuan Chen, Hui Wang, Daoyuan Guo, Zhixin Wu. 2020: Effects of Bacillus subtilis on hepatic lipid metabolism and oxidative stress response in grass carp (Ctenopharyngodon idellus) fed a high-fat diet. Marine Life Science & Technology, 2(1): 50-59. DOI: 10.1007/s42995-019-00005-2
Citation: Hui Zhao, Yan'er Luo, Yongan Zhang, Xiaoxuan Chen, Hui Wang, Daoyuan Guo, Zhixin Wu. 2020: Effects of Bacillus subtilis on hepatic lipid metabolism and oxidative stress response in grass carp (Ctenopharyngodon idellus) fed a high-fat diet. Marine Life Science & Technology, 2(1): 50-59. DOI: 10.1007/s42995-019-00005-2

Effects of Bacillus subtilis on hepatic lipid metabolism and oxidative stress response in grass carp (Ctenopharyngodon idellus) fed a high-fat diet

  • Bacillus subtilis is widely used in aquaculture as a probiotic. However, few studies have been conducted to examine the efect of B. subtilis on liver lipid metabolism. A total of 135 healthy grass carp (50.24 ± 1.38 g) were randomly divided into three groups: control (Con), high-fat diet (HF), and high-fat diet + B. subtilis (HF + B. subtilis), and fed for 8 weeks. The results showed that compared with the HF group, the weight gain rate (WGR) signifcantly increased (P < 0.05) and the hepatic lipid content, serum low-density lipoprotein cholesterol (LDL-C), and aspartate aminotransferase (AST) decreased in the group supplemented with B. subtilis (P < 0.05). Moreover, the hepatic mRNA expression of fatty acid synthase (FAS) was signifcantly down-regulated and the carnitine palmitoyl transferases (CPT1α1a) were up-regulated in the HF + B. subtilis group compared to the HF group (P < 0.05), respectively. Additionally, in the HF + B. subtilis group, glutathione (GSH) signifcantly increased (P < 0.05), while hydrogen peroxide (H2O2) and malondialdehyde (MDA) contents signifcantly decreased compared to the HF group (P < 0.05). B. subtilis may reduce the hepatic lipid content by inhibiting its synthesis and promoting β-oxidation of fatty acids. B. subtilis may also alleviate dyslipidaemia and prevent oxidative damage in the liver caused by the high-fat diet of grass carp. Hence, dietary supplementation with B. subtilis shows promise as a therapeutic or preventive tool against fatty liver disease.
  • loading

Catalog

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return