简介：双硫仑(disulfiram)又称双硫醒、戒酒硫、酒畏等,是酒增敏药物,用于戒酒治疗,被人体微量吸收后能引起面部潮红、心悸、呼吸困难等症状,尤其在饮酒后能使上述症状更严重[1].现就文献报道的320例药源性双硫仑样反应进行分析,以引起临床用药的重视.

简介：摘要目的探讨极低出生体重儿胃管的留置技巧和护理。方法通过查阅相关资料及结合临床实际工作总结分析。结果改进护理方法，使极低出生体重儿胃管置入顺利，减轻了患儿因重复插管带来的痛苦。结论极低出生体重儿留置胃管的护理改革对于促进患儿尽早恢复健康有重要意义。

简介：目的探索不同f2/f1比值对DPOAEs幅值的影响,寻找最佳的测试参数,以得到最大的DPOAEs测值.方法对12例(24耳)正常青年人进行不同f2/f1比值条件下的DPOAEs幅值测试.结果当f1/f1=1.220时,DPOAEs幅值最大(P＜0.05或P＜0.01).当f2/f1=1.232时,除了f2=2002Hz处以外,其DPOAEs幅值与f2/f1=1.220时无显著性差异(P＞0.05).其他f2/f1值的DPOAEs幅值均较低,多数测值与f2/f1=1.220时相比均有显著性差异(P＜0.05或P＜0.01).结论f2/f1=1.220～1.232时,DPOAEs测值最大,此范围为最佳测试参数值.

简介：SincetheinventionofRubylaserbyMaimanin1960s,manykindsoflasersareusedwidelyindentistry.Ithasbeenprovedthatlaserirradiationcanproduceacidetchinglikesurface,thusstrengthenthebondofmaterialtoenamel.Buttheheatgeneratedduringirradiationproducesdamageondentalpulp,whichlimitsthelaserapplicationsondentalhardsurfaces.

简介：Objective:TodirectionallyclonetheomplgenefromChlamydiatrachomatis(Ct)FGenotypeontoaplasmidvectorforconstructingarudimentaryDNAvaccine.Methods:ThecompleteomplgenefromgenomicDNAofCtFgenotypewildspecieswasamplifiedwithprimersdesignedbycomputer.Therecombinantgenewasobtainedbyrestrictionenzymecutting,linkingthegenewiththeplasmidvectorinvitro,transformingtherecombinantgeneintobacteria,andextractingtheDNAfromthebacteria.Results:DNAextractingfromthebacteriawascomposedoftheimplgeneandplasmid,whichisidentifiedbythreemethodsofsingularrestrictiveenzymecutting,doublerestrictiveenzymecuttingandPCR.Conclusion:CloningoftheomplgenefromtheCtFgenotypemeansthatarudimentaryDNAvaccinewassuccessfullyconstructed.

简介：1950年,Magladery和MCDougal首先提出了F波(F—Waves)的概念,认为F波为周围神经接受电刺激后而出现的晚期肌肉反应。70年代后,许多学者对F波进行了研究,证实F波是周围神经接受超强

简介：目的对520份中药说明书中与安全用药关系最直接的不良反应、禁忌、注意事项3项内容进行调查,评价分析目前中药说明书规范、完善的情况.方法依据对药品说明书的规定,收集了5家医院的中药说明书;520份,按剂型分类对调查的5项内容进行统计.结果在520份中药说明书中,同时注明3项内容的有54份,占总数10.6%;分别注明不良反应的有62份,占总数19.83%;注明禁忌的有82份,占总数25.65%;注明注意事项的有257份,占总数74.06%.结论药品说明书是指导临床正确使用药品的技术性资料和依据,制药企业应按对中药说明书的规定,规范、完善说明书的内容,保证药品质量,保障用药安全.

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.

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简介：1983、1994年的6-7月，连续两次在舒城县庐镇乡进行DDT室内滞留喷洒，第一次喷洒后，嗜人按蚊组成比和叮人率分别下降98.4%和99.5%，恶性疟发病率下降92.1%,第二次喷洒后直至1996年10月底，嗜人按蚊和恶性疟均消失；1985年6月，在该县洪庙乡（对照区）进行室内一次喷洒，亦取得了与两次喷洒相同的防治效果

简介：从重齿毛当归中进一步分得９个香豆素类化合物，它们是ｃｏｌｕｍｂｉａｎｅｄｉａｎ（１），ｏｓｔｈｏｌ（２），ｂｅｒｇａｐｔｅｎ（３），ｉｓｏｉｍｐｅｒａｔｅｒｉｎ（４），ｍｅｒａｎｚｉｎｈｙｄｒａｔｅ（５），ｎｏｄａｋｅｎｅｔｉｎ（６），ｍａｒｍｅｓｉｎｉｎ（７），ｃｏｌｕｍｂｉａｎｉｎ（８）和ａｎｇｅｌｉｄｉｏｌ（９）．其中，５～８为首次从该植物中分得，９为一新的天然产物。

简介：Objective:ToinvestigatetheexpressionofE2FandBcl-2andtheclinicopathologicalsignificanceinhepatocellularcarcinoma.Methods:TheexpressionsofE2F-3andBcl-2in74patientswithhepaticcarcinoma,paracarcinomaand15patientswithlivercirrhosisweredetectedbyS-Pimmunohistochemicalstaining.Results:TheexpressionofE2Finhepaticcarcinomawassignificantlyhigherthanthatinparacarcinomaorlivercirrhosis(P<0.005),theexpressionofBcl-2inhepaticcarcinomawassignificantlyhigherthanthatinparacarcinoma(P<0.005),inwhichBcl-2expressionwaslowerthaninlivercirrhosis(P<0.05).TheexpressionofE2F-3wasrelatedwithhistologicalgrade,tumorsize,andtheexpressionofBcl-2wasrelatedwithhistologicalgrade,tumorsizeandtumornumber.TherewascorrelationbetweentheexpressionofE2F-3andBcl-2inhepaticcarcinoma.Conclusion:E2F-3andBcl-2expressionmayplayanimportantroleindevelopment,progressionandcellapoptosisoftumor.

简介：<正>检测患者组68例和正常对照组50例。结果:所有患者肌电图(EMG)均呈广泛神经源性损害,神经传导速度(MCV)和运动神经末端潜伏期(DML)正常或轻度延长(P>0.05)。F波:58例F波出现率降低,7例F波消失,异常率95.6％;54例(79.4％)同时伴F波潜伏期离散度增大,为(7.8±4.5)ms;F波

简介：目的　探讨内蒙一起菌痢爆发的特异传染源。方法　对４３株Ｆ２ａ志贺菌进行质粒图谱和质粒ＤＮＡ酶切图谱分析。结果　①质粒图谱和质粒ＤＮＡ酶切图谱特征相同的菌株为引起本次菌痢爆发的优势克隆；②本次爆发偶合有部分散发病例；③经污染的食物传播是本次爆发的主要传播途径。结论　质粒分析能较为特异、敏感地揭示不同来源志贺菌间的遗传联系和差别，从而准确说明爆发或流行事件的真相

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简介：Objective:Tostudytheexpressionofactivatedepi-dermalgrowthfactorreceptor(EGFR)andtranscrip-tionfactorE2F(E2F)inCondylomaAccuminata(CA)patients.Methods:ImmunofluorescenttechniqueswereusedtoinvestigatetheexpressionofactivatedEGFRandE2FinCApatients.Results:TheexpressionofactivatedEGFRonthemembraneofepithelialcellsinCAlesionswassig-nificantlygreatercomparedtoexpressionleversinthecontrolgroup(P<0.01).Moreover,theco-expres-sionofactivatedEGFRandE2Fwassignificantlyin-creasedcomparedtothecontrolgroup(P<0.01).Conclusion:Ourobservationssuggestthatthein-creaseinactivatedEGFRexpressionmaystimulatehyperplasiainCApatientsthroughtheactivationoftranscriptionfactorE2F.

简介：Havingbeenpassedfor160generations,acelllinedesignatedasH22-F25/LwasestablishedfromamurinetumorlymphaticmetastatlcmodelH22-F25whichhadbeensetupinourcollege.Thecelllinewasinsuspensionculturewitharapidproliferationandstablegrowth.Thepeaktuneofcelldivisionandproliferationwas48and96hoursafterculture.Inaweek,thecellnumberwasIncreasedby25tunes.H22-F25/Lstillkeepsthefeaturesofapoorlydifferentiatedcancer.Itstumorinducingrate(invivo)was100%in615mice.Lymphnodemetastasisratewas50%andpulmonarymetastasisrate10%.H22-F25/LIsapopulationofheterogenetlctumorcellsIncluding2stemcelllines(themodelnumberofchromosomesbeing43in40%tumorcellsand86in32%)andsomesidelines.ThecommonmarkerchromosomesM1,M2,M3andM4werepresentinallstemandsidelines.

简介：肺癌的正确分期对肺癌治疗方案的制定具有重要的意义,以往根据胸片、胸部CT和B超等形态学检查手段作为分期的依据,但18F-FDGSPECT的应用,从功能诊断的角度,可发现许多过去形态学检查不能检测到的病灶,从而为肺癌的诊断和分期提供了新的方法.作者自2002年1月～2003年12月期间,发现5例临床确诊为肺癌,采用18F-FDGSPECT显像,发现经胸部CT检查未显像的肺癌多部位转移,现总结报道如下.

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