欢迎来到天天文库
浏览记录
ID:55731905
大小:890.27 KB
页数:4页
时间:2020-06-03
《局部应用瘦素对大鼠烫伤创面愈合的实验研究.pdf》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、2012;32(5)南方医科大学学报(JSouthMedUniv)·703·局部应用瘦素对大鼠烫伤创面愈合的实验研究文辉才,巫国辉,陈雯,杨红华,付建华南昌大学第一附属医院整形外科,江西南昌330006;2江西省人民医院整形颌面外科,江西南昌330006;江西省肿瘤医院头颈外科,江西南昌330029摘要:目的建立Wister大鼠的深Ⅱ。烫伤创面模型,外用瘦素来观察和研究瘦素在Waster大鼠烫伤创面愈合中的作用和意义,探讨瘦素在创伤修复过程中的作用及其机制。方法选用清洁级Wistar大鼠18只,建立深Ⅱ度烫伤模
2、型,将创面分为实验组(创面涂400ng/ml的瘦素溶液,用pBs释稀)和对照组(外涂PBS)。观察创面愈合时间;在烫伤后第3,7,11,15,19天5个时相点测量创面的上皮化率;于伤后第7、14和21天用手术刀切取各组的伤口及周边皮肤,做HE及免疫组化染色(PCNA),以观察创面的愈合时问和组织形态以及角质形成细胞在烫伤创面愈合过程增殖和迁移情况。结果实验组创面愈合时间快于对照组2~3dE右,实验组愈合天数与对照组相比,差异具有显著性(P3、表皮反应性增生快,表皮层明显厚于对照组,实验组创面上皮化过程短于对照组。实验组PCNA表达与对照组在7d和14d时有明显差异(PO.05)。结论局部外用瘦素能提高深Ⅱ烫伤创面的愈合率,加快创面愈合时间,瘦素能加快深II烫伤创面的愈合。关键词:瘦素;角质形成细胞;创面愈合中图分类号:R62文献标志码:A文章编号:1673.4254(2012)05.0703.04doi:10.3969~.issn.1673-4254.2012.05.026http://www.cnki.4、net/kcms/detail/44.1627.R.20120426.1658.019.htmlTopicalapplicationofleptinpromotesburnwoundhealinginratsWENHuicai,WUGuohui2,CHENWen。,YANGHonghua,FU]ianhuaPlasticSurgery,FirstAfiliatedHospitalofNanchangUniversity,Nanchang330006,China;PlasticandMaxillofacialSu5、rgery,JiangxiProvincialPeopleSHospital,Nanchang330006China;3HeadandNeckSurgery,]iangxiProvincialCancerHospital6、Nanchang330029ChinaAbstract:ObjectiveToinvestigatetheeffectoftopicalapplicationofleptininpromotingbumwoundhealinginrats.MethodsFourparallelsecond—d7、egreebumwoundsinducedonthebackof18Wistarratsweredividedintoleptintreatmentgroup(treatedthtopicalapplicationof400ng/mlleptindissolvedinPBS)andcontrolgroup(treatedwithPBS).Thetimeofwoundhealingwasrecorded,andthewoundareathatwasnothealedwasmeasuredat3,7,11,15an8、d19daysafterbums.Thetissueattheperipheriesofthewoundwassampledat7,14and21daysafterbumsforpathologicalexaminationwithHEstainingandimmunohistochemistryforproliferatingcellnuclearantigen(PCNA)toevaluatetheproliferationofkeratinocytes.ResultsComparedwiththecontr9、olgroup,leptin—treatedwoundsshowedashortertime(by2-3days)ofwoundhealing,andsignificantdifferenceswerefoundbetweenthetwogroupsinhealingatf11f15fand19daysafterbums.HEstainingandimmunohistochemistr
3、表皮反应性增生快,表皮层明显厚于对照组,实验组创面上皮化过程短于对照组。实验组PCNA表达与对照组在7d和14d时有明显差异(PO.05)。结论局部外用瘦素能提高深Ⅱ烫伤创面的愈合率,加快创面愈合时间,瘦素能加快深II烫伤创面的愈合。关键词:瘦素;角质形成细胞;创面愈合中图分类号:R62文献标志码:A文章编号:1673.4254(2012)05.0703.04doi:10.3969~.issn.1673-4254.2012.05.026http://www.cnki.
4、net/kcms/detail/44.1627.R.20120426.1658.019.htmlTopicalapplicationofleptinpromotesburnwoundhealinginratsWENHuicai,WUGuohui2,CHENWen。,YANGHonghua,FU]ianhuaPlasticSurgery,FirstAfiliatedHospitalofNanchangUniversity,Nanchang330006,China;PlasticandMaxillofacialSu
5、rgery,JiangxiProvincialPeopleSHospital,Nanchang330006China;3HeadandNeckSurgery,]iangxiProvincialCancerHospital
6、Nanchang330029ChinaAbstract:ObjectiveToinvestigatetheeffectoftopicalapplicationofleptininpromotingbumwoundhealinginrats.MethodsFourparallelsecond—d
7、egreebumwoundsinducedonthebackof18Wistarratsweredividedintoleptintreatmentgroup(treatedthtopicalapplicationof400ng/mlleptindissolvedinPBS)andcontrolgroup(treatedwithPBS).Thetimeofwoundhealingwasrecorded,andthewoundareathatwasnothealedwasmeasuredat3,7,11,15an
8、d19daysafterbums.Thetissueattheperipheriesofthewoundwassampledat7,14and21daysafterbumsforpathologicalexaminationwithHEstainingandimmunohistochemistryforproliferatingcellnuclearantigen(PCNA)toevaluatetheproliferationofkeratinocytes.ResultsComparedwiththecontr
9、olgroup,leptin—treatedwoundsshowedashortertime(by2-3days)ofwoundhealing,andsignificantdifferenceswerefoundbetweenthetwogroupsinhealingatf11f15fand19daysafterbums.HEstainingandimmunohistochemistr
此文档下载收益归作者所有