简介:ToinvestigatetheexpressionlevelsofthreeDsbproteingenes,dsbB,dsbDanddsbG,atdifferenttimepointspostC.trachomatisinfection,mousefibroblast12cellswerechosentobeinfectedwithC.trachomatisserovarFstrainF/IC-Cal-13.C.trachomatiselementarybody(EB)-infected12cellswereharvestedimmediatelyafterEBattachmentontothecellsandevery4hourspostinfection(hpi)till44hpifortotalRNApreparation.RT-PCRassayswerethenemployedtoamplifycDNAwithprimerpairswhicharespecifictoC.trachomatisdsbgenesdsbB,dsbD,dsbGandtufArespectively.Therela-tiveexpressionlevelsofDsbproteingeneswereevaluatedascDNAratiosofgenedsbtogenetufA.OurresultsshowedthatthetranscriptionofdsbGstartedfrom12hpiandgraduallyincreasedtill44hpi.ThetranscriptionofdsbBanddsbDweredetectedat16hpiandreachedtheirpeaksat28hpiand24-28hpi,respectively.Moreover,therewasobvioustranscriptionofdsbBatthelaterstage(44hpi),butnonefordsbDatthistimepoint.WecametotheconclusionthattheexpressionlevelsofthethreeDsbproteingenesaredifferentduringthedevelopmentalcycleofC.trachomatist.Theymayplayaroleinmid-to-latestageofthedevelopmentalcycleofC.trachomatis.
简介:Thehousedustmites(Dermatophagoidesfarinae,Derf)arethemajorsourceofaeroallergensimplicatedintheexpressionofatopicdisorders,includingasthma,allergicrhinitisandatopicdermatitis.Inparticular,strongcircumstantialevidencesuggeststhathousedustmiteantigensareimportantprecipitatingfactorsofasthma.Manyhousedustmiteallergensareproteasesthatcanelicitairwayinflammationbystimulatingthereleaseofcytokinesfrombronchialepithelialcells.ToinvestigatewhetherDerfallergenproteasesinducedcytokineproductionfromtheepithelialcelllineBEAS-2B,BEAS-2Bcellswereculturedwith4differentconcentrationsofDerf(0.02,0.2,2,20μg/ml)for24-96h,afterwhichsupernatantswereassayedforinterleukin(IL)-6andIL-8withELISA.Reversetranscription-PCRwasalsoperformed.ThecellsheetswereintactthroughouttheobservationincontrolgroupwithoutanyexposuretoDerfantigen.IntheexperimentalgroupscellstreatedwithDerfallergenshowedchangesintheanchoragestatusofthemonolayer.Therewasasignificantincreaseinthelevelofcytokineproductioncomparedwiththeuntreatedsample.ThereleaseofIL-6andIL-8increasedinaconcentration-dependentmanner(P<0.05,respectively)withtheadditionofincreasingdosageofDerftothecellsheets.LevelsofIL-6andIL-8begantoriseat24hand48hafterallergenexposure,andtheyincreasedsignificantlyinthesupematantsat72hand96h.AtthesametimetheconcentrationdependenceofinductionofIL-6andIL-8expressionaswellasanincreaseintheexpressionofIL-6andIL-8mRNAmanifestedevidently.HDM-inducedairwayinflammationmayincludeDerf-mediatedreleaseofinflammatorymediators,andtheproteolyticactivityofanallergenmaystimulatethereleaseofproinflammatorycytokinesfromhumanbronchialepithelium.ItissuggestedthatIL-6andIL-8productionbybronchialepithelialcellsmayplayaroleinthepathogenesisofallergicasthma.
简介:摘要 目的 通过随机对照试验,客观评价院内自拟方肛肠坐浴1号方治疗痔疮术后的临床疗效,并考察其安全性。方法 400个病例通过随机分组的方法将病例随机分为试验组和对照组,试验组和对照组各200例,试验组术后用肛肠坐浴1号方坐浴熏洗2周,对照组高锰酸钾坐浴熏洗2周,观察分析术后伤口疼痛水肿情况。结果 试验组有效率为100%,明显高于对照组的87.3%(P<0.05)。结论 肛肠坐浴1号方能有效缓解痔疮术后患者的肛缘水肿、疼痛,减少出血,减少并发症发生,突显出中医外治法的优势与特色,值得临床进一步推广。
简介:摘要:间质性肺病(Interstitial Lung Disease, ILD)是一组以肺实质炎症和纤维化为主要特征的疾病。近年来,随着医学研究的深入和临床经验的积累,对ILD的认识不断深化,其分类、诊断和治疗策略也日益完善。本文将综述ILD的主要分类方法、诊断流程以及治疗策略,旨在为临床医生提供参考,提高ILD的诊疗水平。通过详细阐述ILD的病因、病理特点、临床表现、影像学特征及实验室检查结果,结合最新的药物治疗和非药物治疗进展,本文将为读者提供一个全面而深入的视角,以更好地理解和管理这一复杂的肺部疾病。