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18 March 2018 : Laboratory Research  

A Polysaccharide from Amusium Pleuronectes Combined with Praziquantel Treatment Ameliorates Hepatic Fibrosis in Schistosoma Japonicum-Infected Mice

Xiaoniu Tang12AE, Wei Hu1BCD, Yechao Lv1C, Wenqi Zhang1D, Tian Sun1F, Yuxin Jiang12ACG, Xiaodong Zhan12DF, Shulin Zhou12DF

DOI: 10.12659/MSM.909320

Med Sci Monit 2018; 24: LBR1597-1603

Abstract

BACKGROUND: Polysaccharides from bivalves have multiple bioactivities in various aspects of biology. However, the role of a polysaccharide derived from Amusium pleuronectes on potential hepatoprotective effects remains unclear.

MATERIAL AND METHODS: A water-soluble polysaccharide was isolated from Amusium pleuronectes (APS-1) using ultrasound-assisted hot-water extraction. The molecular weight of APS-1 was approximately 11.7 kDa and was determined by calibration with dextran. APS-1 was analyzed by high-performance liquid chromatography (HPLC), and mainly consisted of a uniform glucose polymer. The protective effect of APS-1 on Schistosoma japonicum-induced liver fibrosis was investigated in a mouse model.

RESULTS: Treatment with APS-1 increased serum levels of interleukin (IL)-12 and interferon (IFN)-γ, increased superoxide dismutase (SOD) activity, and decreased levels of IL-13 and IL-5, and hyaluronidase activity. Moreover, immunohistochemical analysis revealed that the collagen content of hepatic tissue of APS-1-treated mice, including that of collagen I, II, and IV, was dramatically decreased. Furthermore, our data showed that combined treatment of APS-1 with praziquantel had more pronounced effects than treatment with either APS-1 or praziquantel alone.

CONCLUSIONS: Our findings suggest that the treatment using APS-1 in combination with praziquantel attenuated S. japonicum egg-induced hepatic fibrosis, and possessed potent hepatoprotective activity.

Keywords: Liver Cirrhosis, Schistosoma japonicum

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Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750