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500 个结果
  • 简介:ToobservetheeffectofGardeniaextractZGontheadsorptionquantityofherpessimplexvirustype1(HSV-1)soastoexplorethemechanismofitsantiviralactivity,fluoresceinisothiocyanate(FITC)wasusedasthefluorescentprobetolabelvirusesandheparinsodiumwasusedascontrol.Meanwhile,theeffectofGardeniaextractZGontheadsorptionquantityonthesurfaceofHep-2cellswasdeterminedbyflowcytometry.ItwasdemonstratedthatadsorptionofHSV-1onthesurfaceofHep-2cellsexhibitedthecharacterofsaturationandspecificityandheparinsodiumcouldpreventattachmentofvirusesonthesecells.Theseresultsareinaccordwiththosereportedpreviously.Itwasalsoprovedthatthemannerofdrug-usepriortoadsorptionorsimultaneoususeofdrugandadsorptionwasbetterthanadsorptionpriortodrug-use,andtheinhibitionratesoftheformerandlattermannerwere84.76%and82.92%respectively.Threemannersofdrug-usewithGardeniaextractZGwerealleffectivetoreducetheadsorptionquantityofviruses,especiallythemannerofsimultaneoususeofdrugandadsorptionwithanadsorptioninhibitionrateof68.46%.Fromtheaboveobservation,itisapparentthatthemechanismofanti-viralactivityofGardeniaextractZGmaybeviaseveralstepsinvolvedintheHSV-1adsorption.

  • 标签: 栀子提取物ZG 单纯疱疹病毒1型 吸附量 流动细胞计数
  • 简介:摘要:目的 通过建立骨关节炎模型探讨整合素pI和GIT 1对软骨细胞影响,及二者之间调控关系。对临床上骨性关节炎治疗起指导作用。 方法 采用约一周龄年乳大鼠20只,用定量PCR和Western Blotting检测对照组、pcDNA3.1空载体转染组、pcDNA3.1-GIT 1过表达组、pcDNA3 . I -integrin-p1过表达组、integrin-p 1 siRNA组和NC siRNA组中,integrin-p1和GIT1mRNA和蛋白质表达水平,来判断integrin-p1和GIT1之间调控关系。结论 integrin-p1可以调控GIT1表达,GTI1可能是位于integrin-pI下游一个关键分子。

  • 标签: 骨关节炎 关节软骨细胞 整合素阳 GITI 细胞增殖与凋亡
  • 简介:WeareracingwithHIV-1,theetiologicagentforAIDSinhumanbeings[1,2],withtwopossibleendconsequences:ifwewin,HIV-1willbeunderourcontrolbyimmunologicortherapeuticmeasures;ifHIV-1wins,theSIVAfricanmonkeys'storywouldrepeatinhumans,i.e.,onlythefewindividualsthatarenotkilledbythevirus

  • 标签: HIV-1 AIDS 治疗作用 传染病
  • 简介:Wehavepreviouslydemonstratedtheabilityofmalariaparasitestointerferewithspecificimmuneresponses.CD4Tcellsspecifictoparasiteantigens,butnotCD4Tcellsspecifictoanirrelevantantigen,ovalbumin(OVA),aredeletedviaapoptosisduringmalariainfection.Itisofinterest,therefore,toinvestigatetheimmuneresponsesthatdevelopedfollowingvaccinationwiththe19kDacarboxylterminusofthemerozoitesurfaceprotein1(MSP119)inmicethathadpreviouslyexperiencedmalariainfection.Inthisstudy,pre-exposureofmicetoPlasmodiumyoeliielicitednativeanti-MSP119antibodyresponses,whichcouldbeboostedbyvaccinationwithrecombinantMSP119,Likewise,infectionofMSP119-primedmicewithPlasmodiumyoelii(P.yoelii)ledtoanincreaseofanti-MSP119antibodies.MSP119vaccinationofmalariapreexposedmiceorimmunizationbyinfection/cureofMSP119-primedmiceenabledthemicetosurvivechallengeinfection,withtheformergrouphavingslightlylowerparasitaemia.Thedatasuggestthatexposuretomalariainfectionprimesanaturalimmuneresponsewhichcanbeboostedbyvaccination.Thisinformationisrelevanttothedevelopmentofavaccineforuseinindividualslivinginmalaria-endemicareas.

  • 标签: 疟疾 寄生虫感染 特异性免疫反应 CD4 T细胞 疫苗接种
  • 简介:ToexplorethemechanismoftheinhibitionofHIV-1byMycoplasmafermerttans,culturesupernatantsandthallodicproteinsfromM.fermerttansPG18werepreparedandtheproteincomponentsofthesupernatantswerepurifiedwithhighperformanceliquidchromatography(HPLC).Theinhibitoryactivitiestoreversetranscriptase(RT)andthenucleaseactivitiesweredetected;theinfluenceofM.fermerttansonIL-10secretionbybothnormalandH1V-1infectedhumanPBMCweredetermined,andtheinhibitoryeffectofrhIL-10onH1V-1replicationwasdetectedwithEI,ISAmethod.Theresultsshowedthatthepurifiedproteinswithamolecularweightof67-100kDaor10-25kDashoweda36%or34%inhibitoryac-tivitytoRTandpartialnucleaseactivity.ThethallodicproteincouldinducebothnormalandH1V-1infectedPBMCtosecretIL-10remarkably,andtothelatter,thiseffectwasmoreapparent.WhilerhIL-10couldinhibitreplicationofH1V-1inPB-MCinvitroinadose-dependantmanner.ItconcludesthattheinhibitoryeffectoftheM.fermentansPG18culturesupernatantsonRTandthepromotingeffectofPG18thallodicproteinonIL-10secretioninPBMCexplainthemechanismsofinhibitiontoHIV-1byM.fermentansPG18.

  • 标签: 抑制作用 HIV-1 支原体发酵 IL-10 HPLC 分泌物
  • 简介:ToinvestigatethephenotypicknockoutofHIV-1chemokinecoreceptorCXCR4andCCR5byintrakinesanditsinhibitoryeffectonHIV-1infection.PrimaryhumanPBLsweretransducedwiththerecombinantvectorpLNCX-R-K-S-K(△NGFR),followedbyanti-NGFR/anti-IgG-magneticbeadmethodselectionandFCMdetection.ThetransducedPBLswereinfectedwithDP1HIV-1virusthereafterenvelope-mediatedsyncytiumformationandp24detectionwerecarriedouttostudytheblockageofHIV-1infectionbyco-inactivationofCCR5andCXCR4.pLNCX-R-K-S-K(△NGFR)-transducedPBILswereisolatedwithananti-NGFR/anti-IgG-magneticbeadmethod.Afterisolation,about70%ofthePBLswerepositivefortheNGFRmarker.WhenthetransducedPBLswereinfectedwithDP1HIV-1virus,envelop-mediatedsyncytiumformationwasalmostcompletelyinhibitedbypLNCX-R-K-S-K(△NGFR)transfection.Also,p24antigenwasverylowintheculturesofpLNCX-R-K-S-K(△NGFR)transducedPBLs.pLNCX-R-K-S-K(△NGFR)transductioninhibitedtheproductionofDP1p24antigenby15%,43%and19%ondays4,7and10respectively.ThelymphocyteswiththephenotypicknockoutofCCR5andCXCR4couldprotectprimaryhumanPBLsfromDP1HIV-1virusinfection.

  • 标签: 爱滋病病毒 基因类型 HIV-1 CXCR4 CCR5 基因表达
  • 简介:TodeterminewhetherthepossessionofcertainHLA-DQA1alleleswasassociatedwiththeriskofdevelopingidiopathicdilatedcardiomyopathy(IDC)andtosubstantiatetheroleofanautoimmunologicpathogenesisinIDC.TypetheallelesofHLA-DQA1bypolymerasechainreactionwithsequence-specificprimers(PCR-SSP)techniquein38patientsofidiopathicdilatedcardiomyopathy(7womenand31men),agedfrom17to56yearsoldwithdiagnosisbeingaccordingtoWorldHealthOrganizationcriteria(IDCgroup),in50patientsofend-stageheartfailureofknownetiology(18womenand32men),withagesrangingfrom34to72(HFgroup),andinthecontrolgroupconsistingofpresumably100healthysubjects(39womenand61men)fromthehealthsurvey,agedfrom30to59yearsold.ThefrequencyofHLA-DQA1*0501intheDCMpatientswassignificantlyelevatedthanthatintheHFandthecontrolgroup.MolecularanalysisoftheDQA1genepolymorphismperformedinthethreesubgroupsshowsanincreasedfrequencyofDQA1*0501amongpatientswithlessEF.TheHFgroupcarriesahighfrequencyofHLA-DQA1*0301.AnincreasedfrequencyofDQA1*0201andDQA1*0103wasfoundinthecontrolgroup.HLA-DQA1*0501isanassociatedgeneofidiopathicdilatedcardiomyopathyandthepossessionofDQA1*0301maybeindicativeoftheknownetiologicheartfailure,suggestingthatthemechanismsinvolvedinthepathogenesisofIDCandotherwiseheartfailurearedifferent.ImmunologicabnormalitiesmaybeamajorcontributortothesusceptibilityofdevelopingofIDC.

  • 标签: HLA-DQA1 等位基因 基因多态性 扩张型心肌病 免疫学
  • 简介:【摘要】报告一例手背深Ⅱ度烫伤患者护理,通过正确伤口评估、合理选择新型敷料,合适包扎,促进伤口快速愈合。结果 经过7天伤口创面的处理,创面完全愈合,减轻了患者痛苦,增加患者舒适度。结论 烫伤患者必须采取正确伤口处理方式,采用新型敷料保护创面,使患者尽早恢复正常社会生活。

  • 标签: 手部 深Ⅱ度烫伤 湿性愈合
  • 简介:[摘要]总结1例结肠癌化疗患者接受整体化护理后对于患者心理状况与依从性影响护理经验。护理要点如下:做好管道护理,保证引流充分;给予营养支持,增强患者抵抗力;密切观察患者病情,应对病情变化;实施整体护理,给予心理护理,提高治疗依从性;做好出院指导,促使患者更好融入家庭及社会。经过20天治疗及护理,患者病情稳定,心态良好,顺利出院。出院后定期随访结果反馈,患者心态平稳,积极配合治疗,病情控制良好。

  • 标签: []结肠癌 整体护理 心理状况 依从性
  • 简介:【摘要】:目的 总结我院首例新型冠状病毒肺炎重症患者护理,探讨行之有效护理对策。方法 以医院 2020年 1月收治入院 1例 NCP重症患者为研究对象,对其护理过程进行分析总结。结果 心理护理稳定患者情绪,提高了患者依从性,无创呼吸机辅助通气联合俯卧位通气改善了患者呼吸功能,全面的病情观察护理保证了患者病情稳定。结论 全方位心理支持及全面的病情观察护理是保证治疗效果关键。

  • 标签: 新型冠状病毒 肺炎 护理
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  • 简介:TofindouttheprotectivepolypeptideepitopesofHCVHVR1,theantigenieityofthesyntheticpepfidewaspredictedbycomputermodelingandverifiedbyELISAandlymphocytetransformationtest.Itwasfoundthattheoutcomeofthecomputermodelingwasinaccordwiththeexperimentalresults.Themethodbyusingcomputermodelingwouldbeaeconomicapproachbywhichtheprotectivepeptidescouldbeidentifiedquickly.

  • 标签: 抗原性 HCV HVR1 缩氨酸 计算机模型 淋巴细胞
  • 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号方治疗痔疮术后临床疗效,并考察其安全性。方法 400个病例通过随机分组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,突显出中医外治法优势与特色,值得临床进一步推广。

  • 标签: 痔疮 混合痔 肛肠坐浴1号方 疼痛
  • 简介:摘要:甲真菌病是指由皮肤癣菌、酵母菌和非皮肤癣菌性霉菌(简称其他霉菌)侵犯甲板和/或甲床所致疾病。甲真菌病发病与年龄、性别及部位均有关。男性发病率高于女性,趾甲发病多于指甲,足拇趾甲罹患率高于其他甲。本文将1例以脑出血后偏瘫侧严重甲真菌感染患者资料进行了整理、分析,并复习了相关文献。。

  • 标签: 脑出血,意识障碍 肺部感染 机械通气 偏瘫侧甲真菌感染