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Cytokine patterns in experimental schistosomiasis mansoni infected mice treated with silymarin

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Abstract

The purpose of this study was to determine cytokine patterns in experimental schistosomiasis mansoni infected mice treated with silymarin. The study was conducted upon 100 mice that were divided into five groups; 20 each: uninfected control group, Schistosoma mansoni infected untreated mice (infected control), infected mice treated with praziquantel (PZQ), infected mice treated with silymarin and infected mice treated with both praziquantel and silymarin. 10 mice from each group were sacrificed at 10th and 18th weeks post infection respectively. Histopathological investigations were performed. Liver sections were stained with hematoxylin–eosin and Masson’s trichrome stain to evaluate changes of granuloma sizes and numbers. Serum levels of the cytokines (TNF-α, IFN-γ, IL-4 and TGF-β1) were assessed in the sera of all groups by immunoassay. The measured levels of cytokines (IFN-γ, IL-4, TNF-α, TGF-β1) were found to be significantly increased in infected mice compared to normal control. At the same time, treated groups with silymarin alone or combined with PZQ showed significant decrease in IL-4, TNF-α and TGF-β1 levels compared to infected control. On the other hand, there was a significant increase in IFN-γ level observed in all treated groups compared to infected control. In addition, the histopathological examination of the liver in the group treated with PZQ showed a reduction in the number of livers eggs granuloma at all periods of sacrification compared with the infected untreated group. However, there was more decrease in granulomas diameter in both silymarin treated group or combined with PZQ at all periods of sacrification when compared to infected untreated group. In conclusion; treatment with silymarin combined with PZQ in murine schistosomiasis could reduce hepatic fibrosis by their action on the production of pro-inflammatory cytokines.

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Authors and Affiliations

  1. Parasitology Department, Research Institute of Ophthalmology, Ministry of Scientific Research & Technology, Giza, Egypt

    Nagwa Mostafa El-Sayed

  2. Parasitology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt

    Ghada Mahmoud Fathy & Sara Abdel-Rahman Abdel-Rahman

  3. Clinical Pathology Department, Faculty of Medicine, Zagazig University, Zagazig, Egypt

    Mahmoud Abdel-Atei El-Shafei

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  1. Nagwa Mostafa El-Sayed
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  2. Ghada Mahmoud Fathy
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  3. Sara Abdel-Rahman Abdel-Rahman
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  4. Mahmoud Abdel-Atei El-Shafei
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Correspondence to Nagwa Mostafa El-Sayed.

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El-Sayed, N.M., Fathy, G.M., Abdel-Rahman, S.AR. et al. Cytokine patterns in experimental schistosomiasis mansoni infected mice treated with silymarin. J Parasit Dis 40, 922–929 (2016). https://doi.org/10.1007/s12639-014-0606-4

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  • DOI: https://doi.org/10.1007/s12639-014-0606-4

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