简介：EfficientactivationofTlymphocytesthroughTcellreceptor(TCR)dependsontwosignals．Thefirstsignal(signalone)isderivedfromTCRinteractingwiththeMHC／antigenicpeptidecomplex，whichconfersantigenicspecificitytotheimmuneresponse．Thesecondsignal(signaltwo)isprovidedbytheengagementofTcellsurfacereceptorswiththeirspecificligandsonantigenpresentingcell(APC)[1]．Asthereisgrowingevidenceforbidirectionalcommunicationsandsocalled“reversesignaling”fortraditionallydefinedligands，thedistinctionbetweenreceptorsandligandsbecomeslessclear．Thesepairsofmoleculesshouldbeviewedascosignalingmoleculesfunctioningincellswhichwouldexpresseitherthereceptorsortheligands.

简介：Toinvestigatewhetherestradiol(E2)playsaroleincell-contact-dependentregulatorymechanismofTcellactivation,westudiedtheroleofE2inregulatinggenetranscriptionofCTLA-4,ICOS,B7-1,B7-2andB7hinvitro.ThespleniccellsofnormalfemaleBALB/cmicewereactivatedbyConA.ThenthecellswereculturedwithE2(100pg/mlor50ng/ml)for24hor48h,respectively.ThecellproliferationwasmeasuredbyMTTassayandtheexpressionoftheco-stimulatorymoleculesmRNAwasexaminedbyRT-PCRanalysis.WefoundthatE2(100pg/ml,physiologicallevel)stimulatedtheactivatedspleencellsproliferation;inhibitedCTLA-4,ICOS,TGF-βandIL-10genetranscription;promotedB7-1andB7-2genetranscription.E2(50ng/ml,pregnantlevel)inhibitedtheproliferationoftheactivatedspleniccells;promotedCTLA-4,B7-1,IL-10butinhibitedB7-2andTGF-βgenetranscription.Therefore,weconcludethattheeffectsofE2onTcellactivationarepartiallythroughitsregulationontheco-stimulatorymolecules.Theco-stimulatorymoleculesarecrucialcomponentsofthecell-contactdependentregulatorymechanism,andE2mayregulateTcellactivationbythismechanism.

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简介：摘要：国际糖尿病联盟(IDF)提出糖尿病的治疗目标不能仅局限于控制血糖水平，还要将提高病人的生活质量作为重要指标。1DF提出的五项基本措施，即饮食治疗、体育锻炼、药物治疗、糖尿病教育和自我血糖监测，在21世纪仍然需要对糖尿病进行综合治疗。此外，还应注意同时积极处理心脑血管疾病危险因子如高血压、脂代谢紊乱等。

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简介：【摘要】目的：分析对 老年 2型糖尿病 (T2DM)患者采用利拉鲁肽治疗的 临床效果。方法：选取我院 2018年 2月 -2019年 4月收治的 110例 老年 2型糖尿病 (T2DM)患者为分析对象，给予所有患者利拉鲁肽进行治疗，经治疗 8 周后，对患者治疗前与治疗后的空腹血糖、餐后 2h 血糖、体重指数以及胰岛 β 细胞 功能指数进行对比。 结果：经所有患者 8 周治疗后所有相关临床指标均优于治疗前，治疗前后指标对比差异存在显著临床可比性 （ P<0.05）。 结论：临床上对 老年 2型糖尿病 (T2DM)患者采用利拉鲁肽治疗效果显著，在改善患者胰岛功能以及血糖时具有较高的安全性，值得在临床推广应用 。

简介：【摘要】康复新液是一种通利血脉，养阴生肌的纯中药制剂。临床可辅助胃黏膜修复，但其副作用尚不清楚。我们将康复新液用于2例由于痛风长期服用非甾体消炎药所致的胃溃疡患者，偶然间发现康复新液诱发了痛风性关节炎的急性发作。回顾病史及查阅文献，我们猜测可能是由于其昆虫成分增加血尿酸有关。本病案记载了康复新液的潜在不良反应，为临床其相关禁忌症提供参考。

简介：Analysisofthefrequencyofantigen-specificcytotoxicTlymphocytes(CTLs)exvivoislargelydependentontheuseofMHC/peptidetetramers.However,thelatterreagentshavenotbeenwidelyavailable,mostlikelybecauseoftheircostlyandtime-consumingproduction.InthisreportweutilizedaneconomicstrategytoconstructHLA/peptidetetramerswithrecombinantpeptide-linkedβ2microglobulin(β2m).TheHLA-A2-restricted,melanomaantigenMARTl-derivedpeptideMARTI27-35(AAGIGILTV)wasfusedtotheNterminusofhumanβ2mthrougha15-aminoacid(aa)-longlinkerbeforebeingrefoldedwiththerecombinantbiotinylatedHLA-A2heavychainectodomain.Theresulted2-component(2C)monomerwasthentetramerizedwithphycoerythin-labeledstreptavidin.Theexperimentalresultshowedthatthe2CHLA-A2/MARTI27-35monomerwasshowntobindtotheHLAclassⅠcomplex-specificmonoclonalantibodyW6/32andtheHLA-A2/MARTI27-35complex-specificsinglechainantibodyfragment(scFv)8.3,suggestingthecorrectnessofitsspecificity.Furthermore,the2CHLA-A2/MARTI27-35tetramerdetectedaspecificCD8^+TcellpopulationinHLA-A2-restrictedmelanomainfiltratinglymphocytesastheconventional3CHLA-A2/MARTI27-35tetramer.Theyieldof2CHLA-A2/MARTI27-35monomerwas2.5timesmorethanthatoftheconventional3Cmonomer.Takentogether,thesedataindicatethattheHLA-A2/MARTI27-35tetramercanbegeneratedconvenientlythroughtheuseofMARTI27-35peptide-β2mfusionproteins,whichcanfacilitatethemonitoringofHLA-A2-restricted,MARTl-specificCTLresponsesinpatientswithmelanoma.

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简介：【摘要】目的：分析综合护理干预在 2型糖尿病肾病护理中所取得的护理价值。方法：选择我院在 2017年 4月 ~2019年 5月诊治的 2型糖尿病肾病患者 84例作为护理对象，将患者均分为观察组 42例和对照组 42例，观察组应用综合护理干预，对照组应用常规护理，对比两组患者护理后血糖和肾功能指标、患者护理前后情绪状态。结果：观察组患者的血糖和肾功能指标均优于对照组， P<0.05；在护理前，两组患者负面情绪评分相似，经过护理后，观察组患者负面情绪评分降低，数据对比有意义。结论：在 2型糖尿病肾病患者的护理中应用综合护理干预可显著改善病情，缓解不良情绪，取得了积极的护理价值，值得推广。

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简介：ToexploretheantiviraleffectandmechanismofpolysaccharidefromSpirulinaplatensis(PSP)onherpessimplexvimstype2(HSV-2),astandardstrainofHSV-2(333strain)wasusedtoinvestigatetheantiviraleffectofPSPinvitro.PSPinvariousconcentrationswasappliedtodifferentstagesofHSV-2replicationcycle.Finally,thevirusinfectivity(TCID50),cytopathiceffect(CPE),andMTTstainingmethodforviablecells(MTTassay)wereusedasmarkerstoevaluatetheeffectofPSPonHSV-2.ThequantityofHSV-DNAwasdetectedbyreal-timefluorescencequantitativePCR(FQ-PCR).TheHSV-2infectedVerocellultrastructureswereobservedbytransmissionelectronmicroscopy(TEM).TheresultsshowedthatPSPhadlittlecytotoxiceffectonVerocells,itcouldnotdirectlyinactivateHSV-2infectivity.PSPnotonlyinterferedinadsorptionofHSV-2toVerocellsbutalsoinllibitedHSV-2biosynthesisinthecells.FQ-PCRresultsshowedthattheinhibitoryrateonHSV-DNAalsoincreasedinadose-dependentandtime-dependentmanner.TEMalsoconfirmedthatPSPexhibitedpronouncedinhibitoryeffectonHSV-2.Inconclusion,theantiviraleffectofPSPonHSV-2maybeattributedtotheinhibitionofvimsadsorption,vimsreplicationandsynthesisincells.

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简介：摘要：目的：探讨2型糖尿病患者临床诊疗中有关血糖与尿酸相关指标的检测情况。方法:本次研究对象分别来自我院住院治疗的2型糖尿病患者与健康体检者，并以此为依据将其分组展开实验，对应组名为糖尿病组、正常对照组，对应人数分别为114例、46例，选取时间为2018年11月-2020年5月，在医护人员的指导下，所有的参选对象均接受各项检查，对获取的血尿酸、空腹血糖及餐后2h血糖指标含量水平进行统计并整理。结果：从两组人员各项指标的检查结果上来看，糖尿病组患者的空腹血糖、餐后2h血糖与尿酸含量水平显著高于另一组，指标差异符合统计学意义的评判标准（P＜0.05）。结论:血糖、尿酸是糖尿病患者临床诊断的两大重要指标，与此同时，指标异常的出现，同样也会诱发其他并发症，对患者的肝、肾等器官组织造成伤害。

简介：Chlamydiatrachomatisoutermembraneprotein2(Ctomp2)isamajorimmunogeninchlamydialinfectionsandahighlygenus-conservedstructuralproteinofallChlamydiaspecies.Topurifytheproteinandtopreparemonoclonalantibodies(mAbs)againstit,therecombinantproteinwasinducedbyIPTG,whichwasconfirmedbySDS-PAGEandpurifiedbymeansofaNi2+-chargedresincolumn.ThedenaturedproteinwasrefoldedintheGSH-GSSHbuffergraduallyandidentifiedbyWesternblotting.ThentheBALB/cmicewereimmunizedwiththerecombinantproteintopreparethemAbagainstCtomp2.TheobtainedmAbswerecharacterized.GenitalspecimensweretestedwithindirectELISAmostlymadeofthemAbandcellculturein84patientswithgenitalsymptoms.Theresultsshowedthathigh-levelexpressionoftherecombinantproteinwasachieved,whichexistedasinclusionbodyandamountedto38%oftotalbacteriumprotein.AmAbagainstCtomp2wasobtained.ItbelongstoIgG2b.Thetiterswereashighas1:40000.TheWesternblottingshowedthatthemAbonlyreactedwiththerecombinantprotein.IthadnocrossingreactionsagainstE.coli,N.gonorhoea,M.hominis,U.urealyticumandM.penetrans.Ithadhighspecifity.Incomparisonwithgoldstandardtest-cellculture,thesensitivities,specificities,positivepredictivevaluesandnegativepredictivevaluesofindirectELISAwere95.24%,100%,100%and98.44%,respectively.Theabove-mentionedresearchworkcontributednotonlytothefurtherstudyofthestructureandfunctionofthisprotein,butalsototheestablishmentofthemethodforitsclinicalapplication,forithadnotbeenreportedbefore.

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