摘要：目的探讨分析湿润烧伤膏(MEBO)对糖尿病溃疡大鼠创面组织中基质金属蛋白酶-9 (MMP-9)、基质金属蛋白酶-2(MMP-2)、基质金属蛋白酶抑制剂-1 (TIMP-1)及基质金属蛋白酶抑制剂-2 (TIMP-2)表达水平的影响。方法从160只健康雄性SD大鼠中随机选取120只制备大鼠糖尿病模型,其余40只正常喂养;最终选取90只造模成功大鼠随机分为模型组、MEBO组与bFGF组,每组30只,与此同时随机选取未予特殊处理的30只大鼠作为空白组,所有大鼠均做全层皮肤缺损创面,空白组与模型组大鼠创面予以凡士林油纱换药处理、MEBO组大鼠创面予以MEBO药纱换药处理、hFGF组大鼠创面予以重组牛碱性成纤维细胞生长因子(rb-bFGF)药纱换药处理,对比观察各组大鼠干预第4、6、12天时创面愈合率以及MMP-9、MMP-2、TIMP-1、TIMP-2与胶原蛋白水平变化情况。结果 (1)干预第4、6、12天,模型组大鼠创面愈合率均明显低于其他各组(P均<0.05),空白组大鼠创面愈合率均明显高于其他各组(P均<0.05),而MEBO组与bFGF组间无明显差异(P均>0.05)。(2)干预第4、6、12天,模型组大鼠创面组织中MMP-9及MMP-2 mRNA表达水平均明显高于其他各组(P均<0.05),TIMP-1及TIMP-2mRNA表达水平均明显低于其他各组(P均<0.05);除干预第6天MEBO组大鼠创面组织中TIMP-1 mRNA表达水平明显高于bFGF组(P<0.05)外,其余各时间点MEBO组与bFGF组大鼠创面组织中MMP-9、MMP-2、TIMP-1及TIMP-2 mRNA表达水平均无明显差异(P均> 0.05)。(3)干预第4、6、12天,模型组大鼠创面组织中胶原蛋白水平明显低于其他各组(P均<0.05);除干预第4天MEBO组大鼠创面组织中胶原蛋白水平明显高于bFGF组(P<0.05)外,其余各时间点MEBO组与bFGF组大鼠创面组织中胶原蛋白水平均无明显差异(P均>0.05)。结论 MEBO可通过调控糖尿病溃疡大鼠创面组织中MMP-9、MMP-2、TIMP-1、TIMP-2的表达水平改善胶原蛋白过度降解,维持细胞外基质代谢平衡,进而促进创面愈合,调节MMP-9/TIMP-1、MMP-2/TIMP-2的比例失衡可能是其促进糖尿病溃疡创面愈合的作用靶点。
摘要：This meta-analysis aimed to assess the effectiveness of moist exposed burn ointment (MEBO) for diabetic foot ulcers (DFU). Two researchers independently assessed the quality and validity of included randomized controlled trials (RCTs) in 7 electronic databases. Risk of bias was assessed using Cochrane handbook guidelines. Twenty seven trials which include 1,979 patients were involved for analysis. Comparison of the same intervention strategies revealed significant differences in total effectiveness rates between BEBO and conventional therapy group (Risk Ratio [RR], 6.36, [95% confidence interval (CI), 3.20, 12.64], P < 0.00001); MEBO combined with standard therapy (Risk Ratio [RR], 1.19, [95% confidence interval (CI), 1.08, 1.31], P = 0.0007); and healing time of DFU (Mean Difference [MD], 14.15, [95% confidence interval (CI), -18.14, -10.17], P < 0.00001). MEBO may be effective for treating DFU. However, a firm conclusion could not be reached because of the poor quality of the included trials. Further trials with higher quality are justified. Key words: Exposed wound ointment (MEBO), diabetic foot ulcers (DFU), recombinant bovine, basic fibroblast growth factor (rb-bFGF), vacuum sealing drainage (VSD).