Restenosis following balloon dilation of benign esophagea stenosis

被引:3
|
作者
Ying-Sheng Cheng Ming-Hua Li Qi-Xin Zhuang Ke-Zhong Shang
机构
关键词
of; on; as; be; it; Restenosis following balloon dilation of benign esophagea stenosis; into; were; PCNA; that;
D O I
暂无
中图分类号
R571 [食管疾病];
学科分类号
1002 ; 100201 ;
摘要
AIM:To elucidate the mechanism of restenosis followingballoon dilation of benign esophageal stenosis.METHODS:A total of 49 rats with esophageal stenosis wereinduced in 70 rats using 5 ml of 50 % sodium hydroxidesolution and the double-balloon method,and an esophagealrestenosis (RS) model was developed by esophageal stenosisusing dilation of a percutaneous transluminal coronaryangioplasty (PTCA) balloon catheter.These 49 rats weredivided into two groups:rats with benign esophageal stricturecaused by chemical burn only (control group,n=21) andrats with their esophageal stricture treated with ballooncatheter dilation (experimental group,n=28).Imaginganalysis and immunohistochemistry were used for bothquantitative and qualitative analyses of esophageal stenosisand RS formation in the rats,respectively.RESULTS:Cross-sectional areas and perimeters of theesophageal mucosa layer,muscle layer,and the entireesophageal layers increased significantly in the experimentalgroup compared with the control group.Proliferating cellnuclear antigen (PCNA) was expressed on the 5th day afterdilation,and was still present at 1 month.Fibronectin (FN)was expressed on the 1st day after dilation,and was stillpresent at 1 month.CONCLUSION:Expression of PCNA and FN plays animportant role in RS after balloon dilation of benignesophageal stenosis.
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收藏
页码:2605 / 2608
页数:4
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