摘要
目的 观察碱性成纤维细胞生长因子( basic fibroblast growth factor,b FGF)对胆肠吻合口愈合过程的影响,预防术后吻合口狭窄。 方法 选用健康杂种犬31只,随机分为实验组16只,对照组15只。通过制作犬胆总管十二指肠吻合模型,术后1周内吻合口局部应用b FGF(实验组)及生理盐水(对照组)。术后3d,1、3周,3、6个月( n=3)分别取材行HE及Masson染色组织学观察,吻合口瘢痕组织羟脯氨酸含量测定。 结果 实验组较对照组愈合时间明显缩短。组织学见实验组肉芽组织中成纤维细胞及毛细血管增生,上皮增生明显加快,1周时开始修复,3周时基本完成,瘢痕亦已基本定型,胶原纤维排列整齐有序,较快( 2～3周左右)进入塑形期;对照组术后3周时胶原纤维排列杂乱,呈旋涡状。电镜观察实验组肉芽组织中细胞功能旺盛,胞浆丰富,粗面内质网发达。瘢痕组织羟脯氨酸含量术后各时间点实验组均小于对照组,差异有统计学意义( P<0 .0 5 )。 结论 吻合口局部应用b
Objective To observe the effects of basic fibroblast growth factor (bFGF) on wound healing of bilioenteric anastomosis as to prevent postoperative biliary strictures. Methods A model of choledochodundenostomy in 31 dogs were constructed at first, then bFGF was administered on the local anastomosis(bFGF group) for 1 week after the operation as compared with sodium chloride solution(control group). Both groups were observed with light microscope(HE,Masson staining) and electron microscope 3 days, 1 and 3 weeks and 3 and 6 months after the operation( n =3). Hydroxyproline was measured at the same time. Results bFGF group healed more quickly compared with control group. Good function of cells were detected by electron microscope. Better mucosa epithelia, fibroblast, and capillary vessel proliferation were detected by histological observation in bFGF group. In bFGF group, collagen fibers were arranged orderly. Three weeks after operation, collagen fibers in control group were orderless and in whirlpool. Hydroxyproline of bFGF group was lower than that of control group( P <0.05).Conclusion bFGF administered in local anastomosis is an effective method to prevent postoperative anastomotic stenosis.
出处
《中国修复重建外科杂志》
CAS
CSCD
北大核心
2005年第5期341-343,共3页
Chinese Journal of Reparative and Reconstructive Surgery
