简介：InordertorevealvariationandrevolutionofNPgenesofhumanavianH_5N_1influenzavirusstrains,theNPgeneofahumanavianH_5N_1influenzavirusstraininGuangdongwassequencedandtheglobalNPgenesofstrainswereretrieved.ThesequenceswereanalyzedbyDNAStar5.0,andtheevolu-tionaryspeedwasstudiedwithreferencetotheepidemiologicaldata.ItwasfoundthatNPgenesof45strainsduring1997-2006werehomologicallyclassifiedintothreegroups:strainsin1997-1998,strainsin2004-2005andstrainsfrom2003to2006.Therewere35substitutionsinNPsinallstrainsaccountingforaratioof7.03%(35/498).Anadditionalglycoproteindomain(NGT_(430-432))wasfoundinNPgenesinthestrainsof2003-2006,themutationofN_(370)SinGD-01-06resultedinoccurrenceofonemoreglyco-proteindomain(NES_(368-370)).Inthesynonymousvariation,K_svaluesinNPwere2.03×10~(-5)-2.55×10~(-5)Nt/dandK_avaluesinNPwere1.58×10(-6)-3.10×10~(-6)Nt/d.Theredidn′texistobviouslyselectivepres-sure.Anadditionalglycoproteindomainineverystrainof2003-2006andonemoreinstrainGD-01-06mightchangetheantigenicityofhumanavianH_6N_1influenzavirus.ThevariationonhumanavianH_5N_1influenzastrainsoccurredfrequentlyinthenaturalworld,whichwouldresultinhighprobabilityofhu-man-humantransmissionalongwiththenaturalevolutionofthevirus.

简介：目的:基于重组流感病毒载体的呼吸道合胞病毒(RSV)疫苗的构建及在小鼠体内的免疫保护效果评价。方法:构建并拯救表达RSV A2型G蛋白胞外结构域(Gecto)的重组甲型流感病毒，将其命名为PR8NAGecto/WSN。体外验证重组病毒G蛋白表达与病毒生长动力学后，单剂滴鼻免疫BALB/c小鼠，并评价体液免疫、黏膜免疫与细胞免疫。免疫4周后，分别用RSV A2与RSV B9320进行攻毒，通过小鼠体重变化、肺组织病毒滴度及病理评价免疫保护效果。结果:单剂滴鼻免疫PR8NAGecto/WSN能在小鼠体内产生较强的体液免疫、黏膜免疫及细胞免疫。与对照组比较，免疫组小鼠经RSV A2或B9320两个亚型病毒攻毒后肺病毒载量与肺组织病理均明显改善。结论:单剂滴鼻免疫重组PR8NAGecto/WSN疫苗可在小鼠体内诱导较强的RSV特异免疫应答与攻毒保护。本研究为新型RSV黏膜疫...

简介：目的:基于重组流感病毒载体的呼吸道合胞病毒(RSV)疫苗的构建及在小鼠体内的免疫保护效果评价。方法:构建并拯救表达RSV A2型G蛋白胞外结构域(Gecto)的重组甲型流感病毒，将其命名为PR8NAGecto/WSN。体外验证重组病毒G蛋白表达与病毒生长动力学后，单剂滴鼻免疫BALB/c小鼠，并评价体液免疫、黏膜免疫与细胞免疫。免疫4周后，分别用RSV A2与RSV B9320进行攻毒，通过小鼠体重变化、肺组织病毒滴度及病理评价免疫保护效果。结果:单剂滴鼻免疫PR8NAGecto/WSN能在小鼠体内产生较强的体液免疫、黏膜免疫及细胞免疫。与对照组比较，免疫组小鼠经RSV A2或B9320两个亚型病毒攻毒后肺病毒载量与肺组织病理均明显改善。结论:单剂滴鼻免疫重组PR8NAGecto/WSN疫苗可在小鼠体内诱导较强的RSV特异免疫应答与攻毒保护。本研究为新型RSV黏膜疫

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/或甲床所致的疾病。甲真菌病的发病与年龄、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的资料进行了整理、分析，并复习了相关文献。。

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简介：摘要：肠黏膜是人体中一道天然的预防细菌的屏障，它不仅可以保护人体胃肠道受损，还能防止病毒等有害细菌进入血液中。是人体必不可少的保护屏障。随着人们生活水平的提高，饮食规律及起居不规范，如暴饮暴食、熬夜、食物单一，或不良嗜好，如吸烟，喝酒，经常食用熏烤类食物及饮用刺激性饮料，这些都会紊乱胃肠道菌群失调、破坏酸碱平衡，进而引起胃肠道粘膜损伤。胃肠道粘膜损伤不仅会影响人体的免疫机制，还会引起胃肠道溃疡，胃肠道糜烂，胃肠道出血等一系列疾病。严重者还会引起胃肠道恶性肿瘤。

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简介：【摘要】艾灸疗法对褥疮具有确定的理论来源和科学依据，已被积极运用。本文报道我院急诊留观室收治 1例气血两虚型褥疮患者，经艾灸疗法治疗护理后康复出院。

简介：【摘要】2020年初，在湖北武汉爆发了新型冠状病毒感染的肺炎疫情，全国30个省启动了重大突发公共卫生事件一级响应。绵竹市为进一步做好全市医疗卫生应对呼吸道相关重大传染病的防控工作，提高对新冠肺炎防治水平和应对能力,切实有效地防止新冠肺炎疫情的扩散蔓延,提出了建立疫情防控的“1+6+N”三级医疗救治体系。本文以孝德卫生院围绕“1+6+N”开展的系列工作为例，阐述了“1+6+N”体系在疫情防控中的作用。

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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.

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简介：WeareracingwithHIV-1,theetiologicagentforAIDSinhumanbeings[1,2],withtwopossibleendconsequences:ifwewin,HIV-1willbeunderourcontrolbyimmunologicortherapeuticmeasures;ifHIV-1wins,theSIVAfricanmonkeys'storywouldrepeatinhumans,i.e.,onlythefewindividualsthatarenotkilledbythevirus

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.

简介：【摘要】目的： 探究心理护理对 1 型糖尿病患者负性心理情绪的影响以及对血糖水平的控制情况。 方法： 将我院收治的 1 型糖尿病患者 70 例纳入研究，以随机抽样法分为两组，两组均采用相同治疗，并给予常规护理，观察组同时加强心理护理，对比两组患者的血糖水平，以 SCL-90 评分量表评估患者的负性心理改善情况。 结果： 观察组患者的 SCL-90 量表各项指标均评分低于对照组（ P<0.05 ），观察组患者的血糖水平低于对照组（ P<0.05 ），存在统计学意义。 结论： 1 型糖尿病患者应用心理护理干预，可改善负性心理情绪，控制血糖水平，效果显著。

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简介：病例摘要：

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.

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对软骨细胞的影响，及二者之间的调控关系。对临床上骨性关节炎的治疗起指导作用。 方法 采用约一周龄的年乳大鼠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GIT1的mRNA和蛋白质的表达水平，来判断integrin-p1和GIT1之间的调控关系。结论 integrin-p1可以调控GIT1的表达，GTI1可能是位于integrin-pI下游的一个关键分子。

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.