Ziyuglycoside Ⅱ Inhibits Rotavirus Induced Diarrhea Possibly via TLR4/NF-κB Pathways

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  • Chen Xiaolan
    College of Veterinary Pharmaceutical, Jiangsu Agri-animal Husbandry Vocational College
  • Liu Li
    College of Veterinary Pharmaceutical, Jiangsu Agri-animal Husbandry Vocational College
  • Chen Wei
    College of Veterinary Medicine, Jiangsu Agri-animal Husbandry Vocational College
  • Qin Feng
    College of Veterinary Pharmaceutical, Jiangsu Agri-animal Husbandry Vocational College
  • Zhou Fang
    College of Veterinary Pharmaceutical, Jiangsu Agri-animal Husbandry Vocational College
  • Yang Haifeng
    College of Veterinary Pharmaceutical, Jiangsu Agri-animal Husbandry Vocational College

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  • <i>Ziyuglycoside II</i> Inhibits Rotavirus Induced Diarrhea Possibly <i>via</i> TLR4/NF-κB Pathways

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<p>Rotavirus (RV) induced diarrhea has been a major reason affecting children healthy under 5 years old especially in developing countries. Although specific vaccines have preventive effects, antiviral therapy is essential for the diarrhea patients. Ziyuglycoside II is a traditional Chinese herb which has been proven to possess anti-virus effects. This study aimed to investigate the roles of Ziyuglycoside II in rotavirus-induced diarrhea and the underlying molecular mechanism. We found that normal MA104 cells treated with RV became swollen and gather together. However, Ziyuglycoside II treatment inhibited cell growth in a dose- and time dependent manner and suppressed RV replication. Moreover, Ziyuglycoside II reversed RV-induced downregulation of anti-inflammatory cytokine interleukin (IL)-10 and upregulation of pro-inflammatory factors, such as interferon-γ (IFN-γ), IL-1β, IL-6, and tumor necrosis factor (TNF-α). Moreover, Ziyuglycoside II administration and ribavirin blocked toll-like receptor 4 (TLR4)/nuclear factor kappa-B (NF-κB) signaling pathway both in mRNA and protein level, which was paralleled with immunohistochemical assay. Additionally, Ziyuglycoside II administration improved diarrhea symptoms and decreased diarrhea scores. Ziyuglycoside II and ribavirin inhibited the apoptosis of small intestine epithelial cells induced by RV. Taken together, RV treatment induced diarrhea. Ziyuglycoside II administration inhibited TLR4/NF-κB pathway and inflammatory response and improved RV-induced diarrhea. The inhibitory effects of Ziyuglycoside II on RV-induced diarrhea predicted Ziyuglycoside II may be a promising drug for diarrhea.</p>

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