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简介：摘要：医疗技术在经过不断发展后，带动了DNA检测技术的发展，并广泛的对其进行了应用，成为了法医鉴定检验方式中最主要的一种。法医所检验的DNA其实就是检验DNA在人体内的序列及其长度，进而对个人进行识别或是进行亲子鉴定。该方式是最为重要的法医物证鉴定方式之一。因此本文概述了DNA技术在法医鉴定中的应用，分析了DNA检测技术在法医鉴定中存在的问题，并对能够提高质量和控制水平的措施进行了提出，以此来促进法医鉴定事业在我国的发展。

简介：Inordertoanalyzethesequencesoftheinternaltranscribedspacer(ITS)includingthe5.8SribosomalDNA(rDNA)ofcommondermatophytes,soastoobtainarapidandaccuratemethodtoidentifythespeciesofdermatophytesandtoestablishthephylogenetictreeofthesespeciestounderstandtheirrelationship,16strainsofdermatophyteswerecollectedandpreliminarilyidentifiedbymorphologicalcharacteristics.GeneralprimersforfungiITS1andITS4wereusedtoamplifytheITSrDNAofeachstrainswithPCR.ThePCRproductsafterpurificationweresequenceddirectlyandwereanalyzedthroughinternet.Intheresults,11strainswereidentifiedbymeansofmorphologicalfeatures,amongwhich5strainswereTrichophyton,5strainswereMicrosporumand1wasEpidermaphyton,whichwasconsistentwiththeresultsbymolecularbiology.Inthe5unidentifiablestrains,1strainwasprovedtobeChrysosporiumbymolecularbiology.Thesestrainsstudiedcouldbedividedinto3differentclassesasindicatedintheanalysisofthephylogenetictreeofthesequencesinITS,whichwerequitedifferentfromthoseofmorphologicalclassification.ItisevidentfromtheaboveobservationsthatthemolecularmethodofanalysisontheITSsequencesisarapid,highlysensitiveandaccurateapproachforthedetectionofdematophytespecies,however,itstillexhibitssomelimitationsneedingthesupplementationwithmorphologicalidentification.

简介：【摘要】随着医疗科技的不断发展， DNA甲基化检测方法逐渐增多， DNA甲基化属于遗传外饰物，是遗传学中的重要内容，对于该物质的研究一直是临床中的热点，但采用操作简单，能够有效帮助各界医学专家了解杂种优势以及基因学的秘密。为了临床研究提供准确依据，本文现对 DNA甲基化检测方法的临床研究进展展开综述，详情内容如下：

简介：TostudytheexpressioncharacteristicofJapaneseencephalitisvirus(JEV)prMEandEproteinsandtheefficacyofDNAimmunizationbydifferentrecombinantplasmidscontainingJEVprME(2001bp)andE(1500bp)genes,tworecombinants(pJMEandpJE)containingJEVprMEandEgenesfusedwithFLAGwereconstructedandthentransfectedintoHepG2andCOS-1cellsbylipnsomefusion.TheexpressionfeatureofFLAG-prME(about72kDa)andFLAG-E(about54kDa)proteinsintransfectedcellswereanalyzedbyWesternblotandtwoantibodysystems(anti-FLAGandanti-E).BALB/cmicewereimmunizedwith100μgoftwokindsofrecombinantsbyintramuscularinjection,andJEVJaGAr-01strains(10^5PFU/100μl)weregiventoBALB/cmicebyintraperionealinjection3wkaftertwiceDNAimmunizationbyalethalviruschallenge.BALB/cmicewereobservedfor21daysafterchallenge.80%plaquereductionneutralizationtestwasperformedtotitrateneutralizationantibodybeforeandafterviralchallenge.ItwasfoundthattheexpressionofproteinsassociatedwithpJMEandpJEwasdeterminedintransfectedcellswithanti-FLAGandanewproteinof11kDawasdetectedinHepG2andCOS-1cellstransfectedwithpJME.OnlyE(53kDa)proteinwasidentifiedastransfectedwithpJMEusingantiE.HigherlevelofneutralizationantibodiesandtheefficacyofprotectiveimmunitywereinducedwithpJMEimmunization,andweresimilartothoseinducedbyinactivatedJapaneseencephalitisvaccine,butwerebetterthanthoseinducedwithpJE.ItconcludesthattheexpressionlevelfromprMtoEproteinsofJEVisdifferentinvitro,andtheinvitroexpressionefficiencyofpJMEwasbetterthanthatofpiE.FLAG-prMEproteinexpressedbypJMEcouldbecleavedbypeptidasefromhost.TheefficacyofDNAimmunizationiscorrelatedtotheexpressioncharacterizationofrelatedproteinsexpressedinvitro.

简介：AThepurposeofthisinvestigationwastostudythetherapeuticeffectofLamivudineonHBVDNAinperipheralbloodmononuclearcells(PBMC)andserum,andthelevelofcytokinesinserumofthepatientswithchronichepatitisB.Thepatientsweredividedintotwogroups(A=47,B=34),andtreatedbyLamivudine,routinemedicine,respectively.ThelevelsofHBV-DNAinPBMCandserumandcytokineswerealldetectedbeforeandaftertreatment.AfterthetreatmentofLamivndinefor36weeks,thetotalconversionnegativeratesofHBV-DNAinPBMCandserumofthepatientstreatedwithLamivudinewere55.32%(26/47)and61.70%(29/47),respectively.ThetotalnegativeconversionratesofHBV-DNAinPBMCandserumofthepatientstreatedbyroutinemedicinewere26.47%(9/34)and32.35%(11/34),respectively.TherewassignificantdifferencebetweenLamivudinegroupandroutinemedicinegroup(P<0.01).ThenegativeconversionratesofHBeAginserumofthepatientswere46.81%(22/47)and68.09%(32/47)attheendof24weeksand36weeks,andwerehigherthanthoseofroutinemedicinegroup(P<0.05andP<0.01).Thelevelsofalanineaminotransferase(ALT),aspartateaminotransferase(AST),ALT/ASTinserumofthepatientsafterbeingtreatedbyLamivudine,routinemedicineweredown-regulatedto(30.1±9.6)U/ml,(32.3±10.7)U/ml,0.9±0.1and(48.4±10.7)U/ml,(44.7±11.0)U/ml,1.1±0.2.Aftertheanalysisofvariance,thehighsignificantdifferencewasobviousbetweenthetwogroups(P<0.01).ItwasduetothehighlevelsofIL-6,IL-8andTNF-αinchronichepatitisBwhichcouldbedown-regulatedto(250.5±33.3)pg/ml,(153.4±22.2)pg/ml,(232.6±21.2)pg/mlbyLamivudine,whichwasmoreobviousthanthatofroutinemedicine(P<0.01).LamivudinehashightherapeuticeffectonthetreatmentofHBVDNAinPBMCandserumandhasbettertherapeuticeffectthanthatofroutinetherapy.Lamivudinemayalsohavehigherdown-regulatedinflammatoryinfiltrationandsecretioninlocalsitecaused

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简介：TheaimofthisstudyistoinvestigatethefeasibilityandmechanismofhIL-2-preSDNAvaccineaspreventionandtherapeuticapproachagainstHepatitisB.EukaryonexpressionvectorinvolvinghIL-2andpreSgenewasconstructedwithrecombinanttechniqueandtransferredintonormalBALB/cmiceandHBVtransgenicmice(Tg-Mice)respectively.Tnenaseriesofdetectionwereperformed:detectionofanti-preS2,HBsantibodyandHBsAginBALB/cmiceandTg-micewithELISA,quantificationofHBVDNAcopiesinHBVTg-miceserumwithreal-timePCR,determinationofhepatitisdegreewithimmunopathologicalHEstaininganddetectionofliverfunction.Anti-preS1canbedetectedat4^th,6^thand10^thweekininoculatedBALB/cmice.Injectionwithgenegungainedanadvantageovermuscularandsubcutaneousinjectionsinceitacquiredjust1/10inoculationquantity(10μg/mouse).HighestexpressionofIgG2aat4^thweeksuggestedThl-mediatedimmuneresponse,whichfacilitatedHBVcleaning.OfallinoculatedHBVTg-mice,80%ofthemshowedanfi-preS2,HBsantibodypositiveandHBVDNAdecreased,and20%showednegativeforHBsAg.HEstainingtohepatictissueshowedobviousinfiltrationofinflammatorycells,swellingandgranulardegenerationofhepatocytes.Inourstudy,IL-2-preSDNAvaccinewhichcanprovokethehumoralandcellularimmuneresponseandbreaktheimmunetolerancesupportsthedesignationandconstructionofnewvaccineagainstHBVandspecificimmuneremedyforHBVcontinuousinfection.

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简介：摘要：本文在结合肺源性心脏病相关理论的基础上，从CNKI、万方等数据库收集相关的学术期刊进行分析和总结，阐述相关的护理现状及相关研究进展。肺源性心脏病的发病率和死亡率均较高。除了对急慢性的肺源性心脏病患者进行抢救外，还需要专业的护理来缓解患者的病情，这对于控制和降低该病的死亡率有显著意义。目前通过基础护理、饮食护理、心理护理、呼吸道护理等。护理人员根据患者病情而进行针对性系统的护理干预，才能逐步缓解肺源性心脏病患者的病情和有效降低死亡率，提高患者生存质量。

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简介：【摘要】目的：讨论乙肝病毒性肝炎患者临床医学检验应用探究。方法：选取我院治疗的乙肝病毒性肝炎的患者50例，均实行两对半和HBV-DNA定量检测，回顾性分析检测结果，选取的患者均需要使用两对半临床医学检验，采集患者的清晨空腹状态下静脉血4毫升，将血液放入离心机中，使用每分钟3000转，10分钟后，将血清分离出来，放在4摄氏度的条件下保存。结果：所有患者经临床检测诊断结果均为乙肝病毒性肝炎，其中小三阳患者占18例（36.0%），大三阳患者占13例（26.0%），其它类型占19例（38.0%），三组之间的差异性较为显著（P

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简介：ThepurposeofthisstudywastoconstructaneukaryoticDNAvectorencodingamultipleepitopeantigen(MFC)ofhepatitisCvirus(HCV)andahepatitisBsurfaceantigen(HBsAg),andexploretheeffectofHBsAggeneontheimmunityofHCVmultiple-epitopeDNAconstructinvitroandinvivoinmice.AnHCVDNAvector(pVAX1-HBs-MFC)wasconstructedbyfusingHBsAggenetotheNterminalofanHCVmultiple-epitopeantigengene.ThepVAX1-HBs-MFCwastransfectedintoHEK293TcellsanditsexpressionwasmeasuredbyELISAandWesternblotting.BALB/cmicewereintramuscularlyimmunizedwiththepVAX1-HBs-MFC,andanELISAapproachwasappliedtodeterminethespecificantibodytitersandsubtypesinthemouseserum.Thecross-reactivityoftheantibodieswasalsocheckedwithtwosynthesizedHCVhypervariableregion1(HVR1)peptides.TheIFN-γproductionandcellproliferationofthemousespleencellswereevaluatedbyELISAandMTS(3-[4,5-dimethylthiazol-2-yl]-5-[3-carboxymethoxyphenyl]-2-[4-sulfophenyl]-2H-tetrazolium,innersalt)assays,respectively.TheexpressionofpVAX1-HBs-MFCwasdetectableinthetransfectedHEK293Tcells.TheserumantibodyresponsewaseffectivelyelicitedinBALB/cmiceinjectedwithpVAX1-HBs-MFC.ThehighesttiterofantibodyagainstHCV(MFC)was1:1280,andtheratioofIgG2a/IgG1was1.50±0.12atthefifthweekafterfirstimmunization.Moreover,thecollectedmouseserumantibodyhadtheabilitytocross-reactwiththetwosynthesizedHCVHVR1peptides.ThestimulationindexofthemousesplenocytestoMFCwas1.79±0.07,andtheIFN-γlevelwas287±6pg/mlatweek21afterfirstimmunization.ThehighesttiteroftheantibodyincontrolBALB/cmiceimmunizedwithpVAX1-MFCwas1:320,andtheratioofIgG2a/IgG1was1.33±0.11atweek5post-immunization.Furthermore,thestimulationindexofthemousesplenocytescellstoMFCwas1.52+0.06,andtheIFN-γlevelwas225±9.3pg/mlatweek21post-immunization.TheHBsAggenecanenhancetheeffectsofanHCVmultiple-epitope

简介：【摘要】目的：分析平衡针灸治疗颈源性肩周炎的效果。方法：将2019年1月至2020年1月在本院就诊的62例颈源性肩周炎患者视为研究对象，根据其入院顺序纳入实验组与常规组（n=31）。常规组予以常规针灸疗法治疗，实验组予以平衡针灸法治疗，对比患者的治疗效果。结果：常规组患者的症状改善率是80.65%，实验组患者的症状改善率是96.77%，实验组的症状改善率较高（P＜0.05）。实验组患者的进食、如厕、床椅转移及平地行走测评分数均相对较高，与常规组分数对比有统计学意义（P＜0.05）。结论：平衡针灸治疗颈源性肩周炎的效果较好，可改善患者的临床症状，增强患者的自主生活能力。

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简介：【摘要】：外固定支架是利用生物力学原理，达到骨断端复位与固定，促进骨愈合和功能恢复为目的的一项治疗术。它很早就已经用于临床，特别是近几年来，经过了多次改进，向外形轻巧型、固定牢靠型等方面有了很大发展。我们近十年多来对 38例患者施行外固定支架治疗，获得了良好的效果。

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简介：摘要：临床护理是现代医院发展过程中的一个重要内容，对于产科病房的护理人员来讲，其面对的主要是妊娠妇女，这个群体的身体状况、精神和心理状态都比较特殊，所以很容易出现各种各样的情绪。产科护士的工作压力来自于多方面，本文对产科护士的工作压力源进行分析，并且提出了管理策略，旨在提高产科护士的工作积极性。

简介：摘要： 目的：探讨 体外过敏源检测在临床中的应用效果。方法：选取过敏性疾病患者 64 例，均为其实施体外过敏原检测， IgE 检测方法为免疫印迹法，总 IgE 检测方法为酶联免疫法，总结患者的总 IgE 水平以及主要变应原。结果：本组患者在接受检测后共 14 例患者的血清总 IgE 水平升高，本组患者的总 IgE 水平主要集中在 ，所占比例为 51.56% 。 本组患者的过敏源主要为尘螨、黄豆、蟑螂、蟹 。结论：临床过敏源检测的实用性高，可为过敏性疾病的特异性免疫治疗提供参考。