三种生物制剂复合应用对芥子气兔眼角膜损伤的治疗作用

Therapeutic effects of combination of three drugs on healing of rabbit corneal wound caused by mustard gas

目的 :观察角膜胶原膜 (CCS)及伍用纤连蛋白 (FN)、表皮生长因子 (EGF)对兔眼角膜芥子气损伤后的治疗作用 ,寻找芥子气眼损伤后眼睑水肿前救治的新方法、新技术和新药物。方法 :将2 4只兔左眼角膜芥子气染毒后 ,随机均分为A ,B ,C组 ,分别用PBS液、CCS及CCS +FN +EGF处理 ,于染毒后 2 ,8,16 ,2 4 ,36 ,4 8和 72h对角膜荧光素着色区拍照 ,计算其上皮愈合速率和上皮破损率。结果 :A ,B ,C三组的角膜上皮愈合速率分别为 (0 .879± 0 .139)mm2 /h、(1.2 2 3± 0 .16 6 )mm2 /h和 (1.543± 0 .2 2 4 )mm2 /h ,统计学处理发现角膜上皮愈合速率各组间差异均非常显著 (P <0 .0 1) ,三组的角膜上皮破损率分别为 71.6 %、57.3%和 4 4 .8% ,统计学差异也非常显著 (P <0 .0 1)。结论 :CCS能促进芥子气染毒引起的兔眼角膜损伤的上皮愈合 。

Objectives: To observe the therapeutic effects of collagen corneal shields (CCS) combined with fibronectin (FN) and epidermal growth factor (EGF) on healing of rabbit corneal wound caused by mustard gas, and to look for the new methods,new technology and new medicine to treat the injured cornea before eyelid edema observed in field hospital.Methods: After the left cornea was contaminated with mustard gas, 24 rabbits were equally divided into three groups(groups A, B, C) at random. Groups A,B,C were treated with PBS,CCS and CCS+FN+EGF,respectively. The corneas were stained with fluorescein and photographed 2, 8, 16, 24, 36,72 hours after contamination. The rate of corneal epithelial healing and percentage of damage were calculated. Results:The healing rates of groups A,B and C were (0.879±0.139)mm 2/h, (1.223± 0.166)mm 2/h and (1.543±0.224)mm 2/h,respectively and had statistically significant difference (P<0.01) . The percentage of damage was 71.6% , 57.3% and 44.8%,respectively and also had statistically significant difference(P<0.01).Conclusions: The treatment with CCS can accelerate the corneal epithelial healing injured by mustard gas and the therapeutic effects will be better if CCS is combined with FN and EGF.[