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  • Title: [Experimental observation on the effects of different chitosan on preventing peritoneal adhesion in rats].
    Author: Zhang Z, Xu S, Zhou X.
    Journal: Sheng Wu Yi Xue Gong Cheng Xue Za Zhi; 2005 Dec; 22(6):1177-81. PubMed ID: 16422093.
    Abstract:
    This experiment was designed to investigate the effects of different chitosan on preventing peritoneal adhesion in rats. 240 SD rats were divided into 2 jumbogroups: jumbogroup A (144 rats) treated with chitosan gel and jumbogroup B (96 rats) with chitosan/gelatin mixed film. In jumbogroup A, 144 rats were randomly divided into 3 groups further, and different methods were used to induce peritoneal adhesions in each group while in the experiment group the wounded processus vermiformis was coated with chitosan gel before it was put back into the abdominal cavity. In jumpbogroup B, 96 rats were randomly divided into 4 groups (24 each) after surgical induction of perioneal adhesions; group B1 served as control group while in groups B2, B3 and B4, pure chitosan film and the chitosan film containing gelatin were respectively spread over the surface of the wounded. 2 and 4 weeks after surgical induction, exploratory laparatomy was performed on the rats to evaluate peritoneal adhesion, and the adhesive tissues were examined histopathologically. The results show that chitosan gel has perfect protective efficacy against traumatic or ischemic peritoneal adhesion, but pure chitosan film and the film chitosan containing gelatin could exacerbate peritoneal adhesion further.
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