ZENG Zhi-hua1, CHEN Kang2, LI Ying2, et al. Research on effect of chitosan-polylactic acid film on rabbit colonic fistula for primary repair[J]. Journal of Chongqing Medical University, 2011,36(9):1057-1059.
ZENG Zhi-hua1, CHEN Kang2, LI Ying2, et al. Research on effect of chitosan-polylactic acid film on rabbit colonic fistula for primary repair[J]. Journal of Chongqing Medical University, 2011,36(9):1057-1059. DOI: 10.13406/j.cnki.cyxb.2011.09.017.
Objective:To compare therapeutic effects of chitosan-polylactic acid film on rabbit colonic fistula.Methods:Polylactic acid film(PAF) and chitosan-polylactic acid film(CPAF) were prepared.The rabbits were divided equally into three groups for different treatments(PAF group
CPAF group
control group)
purse string suture following colon stoma.After such disposition
PAF group and CPAF group covered the suture with PAF and CPAF respectively
while control group did nothing.Rabbits were parallel observed and detected with immunohistochemical staining for TGF-β1 after 20 days.Results:Physical characteristic had no statistics difference between PAF and CPAF.Rabbits in PAF and CPAF group all survived
but in control group were dead within 7 days.Immunohistochemical staining for TGF-β1 had obviously smaller amount in CPAF than in PAF and control group
and PAF also smaller than control group.Statistics difference was observed.CPAF had more inhibition in TGF-β1 than the other two group and the results were significant difference.Conclusion:CPAF had better therapeutic efficacy than PAF on colonic fistula.