简介:AIM:Tocomparetheeffectoftopicallyadministeredandsubconjunctivallyinjectedbevacizumabonexperimentalcornealneovascularizationinratsfortwoweeksaftertreatment.METHODS:Twenty-eightSprague-Dawleyratsweredividedintofourgroupsof7animals.Eachcornealcenterofrighteyewascauterizedwithsilver/potassiumnitratefor8s.Aftercornealburning,bevacizumab(12.5mg/mL)wastopicallyadministeredthreetimesperday(TBgroup)fortwoweeksorsubconjunctivallyinjectedondays2and4aftercauterization(0.02mL;SBgroup).Asnegativecontrols,ratsreceived0.9%salinetopicallythreetimesperday(TSgroup)orsubconjunctivallyondays2and4(0.02mL;SSgroup).Digitalphotographsofthecorneaweretaken1and2weeksaftertreatmentandanalyzedtodeterminetheareaofcorneacoveredbyneovascularizationasthepercentageofcornealneovascularization.RESULTS:Oneweekaftertreatment,thepercentageofcornealneovascularizationwassignificantlylowerintheTBandSBgroupsthanintheTSandSSgroups(allP<0.05).Twoweeksaftertreatment,thepercentageofcornealneovascularizationwassignificantlylowerintheTBgroupthanintheTSgroup(P<0.05).Inallgroups,thepercentageofneovascularizationwasdecreasingastimepassed(allP<0.05)CONCLUSION:Topicallyadministeredbevacizumabhaslongerstandinganti-angiogeniceffectthansubconjunctivallyinjectedbevacizumabincornealneovascularizationfollowingchemicalinjuryinrats.
简介:目的探讨制霉菌素泡腾片与湿润烫伤膏水浴后混合物(简称制霉菌素油剂)的广谱抗真菌、改善耳道内环境、恢复耳道上皮分泌及自洁功能的效果。方法以60例行真菌涂片滴入氢氧化钾镜于下检查确诊为真菌性外耳道炎的患者为研究对象,2周为1个疗程,不得中途退出。常规清洁耳道,待耳道干燥后涂布制霉菌素油剂,治疗3~5次后评估患者耳道不适症状的改善、分泌物质与量的变化、上皮充血糜烂的恢复、真菌的检测分型与培养药敏变化。结果药剂分布均匀,耳内分泌物易排出,患者的舒适度与上皮功能恢复改善快。结论制霉菌素有广谱杀真菌效果,合用湿润烫伤膏的油剂可改善耳道内环境。制霉菌素油剂治疗真菌性外耳道炎符合耳道生理病理治疗需求,效果良好。