首页|基于LuxS/AI-2群体感应系统研究疮愈膏促进肛周慢性创面愈合的作用机制

基于LuxS/AI-2群体感应系统研究疮愈膏促进肛周慢性创面愈合的作用机制

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目的:研究疮愈膏对肛周慢性创面形成的抑制作用及其对创面细菌生物被膜主要调控基因LuxS和信号分子AI-2的影响.方法:采用SD大鼠60只(200±20)g雄性大鼠随机分为普通创面组(n=15),实验组(n=15),阳性对照组((n=15),安慰剂组(n=15);通过背部新鲜创面每日滴加离心粪液构建肛周慢性创面模型.造模成功后,实验组给予疮愈膏外敷,阳性对照组给予莫匹罗星软膏外敷,安慰剂组给予凡士林纱条外敷,普通创面组给予生理盐水纱条外敷,1次/d,持续14 d.于治疗前和治疗后对各组大鼠创面进行记录分析;实时荧光定量聚合酶链式反应(RT-PCR)检测生物被膜主要调控基因LuxS的变化;哈氏弧菌测定AI-2信号分子活性.结果:与安慰剂组比较,实验组和阳性对照组大鼠创面面积均明显缩小,差异具有统计学意义(P<0.05);实验组与阳性对照组差异无统计学意义.与安慰剂组对比,实验组和阳性对照组大鼠创面组织提取细菌中LuxS mRNA相对表达量,信号分子AI-2活性均明显降低(P<0.05),实验组和阳性对照组则无明显差异(P<0.05).结论:疮愈膏能够加速肛周慢性创面的愈合同时抑制创面细菌生物被膜的形成,其机制可能与下调创面细菌LuxS基因的表达及降低其AI-2信号分子活性有关,LuxS/AI-2群体感应系统可能为疮愈膏治疗肛周慢性创面的机制之一.
Study on the Mechanism of Chuangyu Ointment in Promoting Perianal Chronic Wound Healing based on LuxS / AI-2 Quorum Sensing System
Objective: To study the inhibitory effect of Chuangyu Cream on the formation of perianal chronic wounds and its effect on the main regulatory gene LuxS and signaling molecule AI-2 of bacterial biofilm in wounds. Methods: 60 (200±20) g male SD rats were randomly divided into ordinary wound group (n=15), experimental group (n=15), pos-itive control group ((n=15), placebo group (n=15); The perianal chronic wound model was constructed by dripping cen-trifuged fecal fluid into fresh wounds on the back every day. After the model was successfully created, the experimental group was given external application of Chuangyu ointment, and the positive control group was given external applica-tion of mupirocin ointment and a placebo. The control group was given external application of Vaseline gauze strips, and the ordinary wound group was given external application of normal saline gauze strips, once/d for 14 days. The

Chuangyu OintmentLuxS/AI-2Perianal chronic woundsBacterial biofilm

杨会举、刘佃温、崔世超、姜亚欣、卢玉阳、杨新玉

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河南中医药大学第三附属医院 河南郑州 450008

郑州市大肠肛门病医院 河南郑州 450004

疮愈膏 LuxS/AI-2 肛周慢性创面 细菌生物膜

河南省中医药拔尖人才项目河南省中医药拔尖人才项目河南省中医药科学研究专项河南省中医药科学研究专项

豫卫中医函[2021]15号2022ZYBJ1620-21ZY20762023ZY2116

2024

中医药临床杂志
中华中医药学会

中医药临床杂志

影响因子:0.636
ISSN:1672-7134
年,卷(期):2024.36(4)
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