简介:目的:探讨急性冠脉综合征(ACS)患者血清高敏C反应蛋白(hsCRP)和白细胞介素10(IL-10)水平的变化及其临床意义。方法:ACS患者48例,其中急性心肌梗塞(AMI)17例,不稳定性心绞痛(UAP)31例,稳定性心绞痛(SAP)18例,健康对照者20例,以免疫散射比浊法测定hsCRP,酶联免疫吸附法钡4定IL-10水平,ACS患者均行冠脉造影。分析冠脉病变程度与血清hsCRP、IL-10水平的关系。结果:ACS患者血清hsCRP水平明显高于SAP患者和正常对照组(P〈0.01),而血清IL—10水平明显低于SAP患者和正常对照组(P〈0.01),但AMI患者血清IL-10水平高于UAP患者(P〈0.05);ACS患者hscRP/IL-10比值(hsCRP/IL-10比值是一种表达斑块炎症及不稳定的准确指标)明显高于SAP患者和正常对照组(P〈0.01),AMI患者的高于UAP患者,UAP的又高于SAP(P均〈0.01);ACS患者hsCRP水平与IL-10水平成负相关(r=-0.52,P〈0.01),hsCRP和IL-10水平与冠脉狭窄程度均无相关性。结论:ACS患者血清hsCRP水平升高,IL-10水平降低,二者比例失衡。可能是冠状动脉粥样硬化斑块不稳定的标志。
简介:目的探讨氟伐他汀对冠心病患者血清半胱氨酸蛋白酶抑制剂C(CystainC)、白介素-10(interleukin-10,IL-10)及基质金属蛋白酶-9(matrixmetalloproteinase,MMP-9)表达的影响及临床意义。方法将90例冠心病患者,采取随机数字表分为小剂量组与大剂量组,每组各45例,两组均给予常规治疗,小剂量组加用40mg的氟伐他汀,大剂量组加用80mg的氟伐他汀,每日1次,比较两组患者治疗前后心功能、血清CystainC、IL-10及MMP-9的表达水平。结果两组患者治疗6个月后与治疗前比较左心室每搏量(SV)、左心室射血分数(LVEF)、E峰与A峰比值(E/A)均升高,左心室舒张末期内径(LVDd)降低,大剂量组与小剂量组比较上述指标改善更加显著,差异具有统计学意义(P〈0.05)。两组治疗6个月后与治疗前比较Cystain、IL-10及MMP-9的表达水平降低,大剂量组与小剂量组比较上述指标改善更加显著,差异具有统计学意义(P〈0.05)。两组在治疗期间无1例患者发生恶心呕吐、头晕目眩、肝肾功能损伤等不良反应。结论大剂量氟伐他汀应用于冠心病治疗可有效改善患者血清CystainC、IL-10及MMP-9的表达水平。
简介:BackgroundTheprognosticvalueofserumC-reactiveprotein(CRP)inpatientswithinfectiveendocarditis(IE)isnotwellelucidated.ThisstudyaimedtoevaluatetheusefulnessofCRPinpredictingtheoutcomeofIE.MethodsTwohundredninty-sixpatientsfrom2009to2012intheDepartmentofCardiologyatGuangdongGeneralHospitalwerescreenedanddividedintosurgicalandconventionaltreatmentgroups.CRP,whitebloodcell(WBC),erythrocytesedimentationrate(ESR)andotherclinicaldatawereobtainedwithfollow-upfor12months.ResultsTwohundredthirty-sixpatientswereassignedtoreceivesurgerytreatmentwhile60patientsreceivedconventionaltreatment.Inthesurgerygroup,thelevelofCRPinthedeathpatientswassignificantlyhigherthanthatinthesurvivalpatients(P<0.001).TheareaunderthecurveofROCwasabout0.749(SE0.064,P=0.005,95%CI,0.624-0.874)andthecut-offpointofCRPwas23.8mg/L.Inconventionalgroup,therewassignificantdifferencebetweendeathandsurvival(P<0.001).TheareaunderthecurveofROCwasabout0.701(SE0.095,P=0.032,95%CI,0.515-0.888)andthecut-offpointsofCRPwas65.6mg/L.TherewerenosignificantdifferencesinWBCandESRbetweensurgeryandconventionalgroups.ConclusionAmoreaggressivesurgicalinterventionresultsinabetteroutcomeoverconventionaltreatmentandCRPcouldbeservedasapredictivemarkerforadverseoutcomeinIEpatients.
简介:目的评估低密度脂蛋白胆固醇(LDL—C)/高密度脂蛋白胆固醇(HDL—C)比值对经皮冠脉介入(PcI)术后患者心血管事件的预测价值。方法选择急性冠脉综合征(ACS)并予前降支置入支架的患者119例,依据血浆LDL—C/HDL—C比值将患者分为3组,随访1年,评估三组患者心血管事件发生率,以及各危险因素与心血管事件发生率的关系。结果①与LDL—C/HDL—C比值较低的两组相比,比值较高组患者体重指数、女性患者百分率、吸烟人数及糖化血红蛋白、高敏C反应蛋(hs—CRP)、总胆固醇和LDL—C水平均明显升高,而HDL—C水平和他汀类药物使用率则较低(P〈0.05)。②第1组风险(HR)1.04,95%可信区间(c,)0.98-1.08,第2组HR1.16,95%C11.08-1.20,第3组HR1.27,95%C11.19~1.36(P〈0.05)。随着LDL—C/HDL—C比值的升高,PCI术后1年患者心血管事件发生率也逐渐升高(P〈0.05)。③Cox比例风险回归模型提示,LDL—C/HDL—C比值对PCI术后心血管事件风险的预测价值优于其他危险因素。结论LDL—C/HDL—C比值对PCI术后患者1年内心血管事件再发具有一定的预测价值。
简介:ObjectivesTostudythedepressiveeffectoftheantisenseoligonuceotides(ASODN)ofc-mycandproliferatingcellnuclearantigen(PCNA)ontheproliferationofVSMC.MethodsTakingtheVSMCobtainedfromrataortathoracaliscultured4~8generationasresearchobject.Theobjectsweredividedintothreegroupstocarryoutcontrolstudy:controlgroup,PCNAASODNgroupandc-mycASODNgroup.TheASODNs'workingconcentrationallwere1:50.ThedepressiveeffectofASODNonVSMCproliferationwasinvestigatedbycellcounting,MTTand3H-TdRincorporationassay;PCNAandc-mycexpressionweredetectedbyimmunohistochemicalmethodaftertransferringPCNAandc-mycASODNintoVSMC.ResultsPCNAandc-mycASODNcouldinhibittheproliferationofVSMCsignificantly,comparedwithcontrolgroup(P<0.05).②TransferringPCNAandc-mycASODNintoVSMCobtainedsuccessfully;thecorrespondinggenewasinhibitedobviously;comparedwithcontrolgroup(P<0.05).ConclusionsPCNAandc-mycmightplayaconsiderableroleintheVSMCproliferationprocess.ThecorrespondinggenecouldbedepressedsuccessfullyaftertransferringPCNAandc-mycASODNintoVSMC,andthentheproliferationofVSMCwassloweddown.Thisstudypresentedabeneficialproposalandtheoreticalfundamentforatherosclerotictreatment.
简介:Bothendotheliallipasegene(LIPG)584C>T(rs2000813)polymorphismandalcoholconsumptionmodulateserumlipidlevels.Buttheirinteractionsonserumlipidprofilesarenotwellknown.ThepresentstudywasundertakentodetecttheinteractionsofLIPG584C>Tpolymorphismandalcoholconsumptiononserumlipidlevels.GenotypingoftheLIPG584C>Twasperformedin763nondrinkersand520drinkersaged15-85.Interactionsbetweenthegenotypesandalcoholconsumptionwereassessedbyusingacross-productterm.Thelevelsofserumtotalcholesterol(TC),triglyceride(TG),high-densitylipoproteincholesterol(HDL-C),apolipoprotein(Apo)AI,andtheratioofApoAItoApoBwerehigherindrinkersthaninnondrinkers(P<0.01forall).Therewasnosignificantdifferenceinthegenotypicandallelicfrequenciesbetweennondrinkersanddrinkers.ThelevelsofserumTC,HDL-CandApoAIinnondrinkersweredifferentamongthethreegenotypes(P<.05-.01).ThesubjectswithCTgenotypehadhigherserumTC,HDL-CandApoAIlevelsthanthesubjectswithCCgenotype.ThelevelsofserumHDL-CandApoAIindrinkersweredifferentamongthethreegenotypes(P<.001andP<.05;respectively).TheindividualswithTTgenotypehadhigherserumHDL-CandApoAIlevelsthantheindividualswithCCandCTgenotypes.ThelevelsofTCinnondrinkerswerecorrelatedwithLIPG584C>Tallele(P<.05),whereasthelevelsofTGandHDL-CwereassociatedwithLIPG584C>Talleles(P<.05)andgenotypes(P<.05);respectively.ThepresentstudysuggeststhatthesubjectswithTTgenotypebenefitedmorefromalcoholconsumptionthanthesubjectswithCTandTTgenotypesinincreasingserumHDL-CandApoAIlevels.
简介:backgroundBonemarrowmesenchymalstemcells(BMSCs)canbeisolatedandculturedtomanypassages.However,StemcellsincludingBMSCsquicklyundergosenescenceinculture.Thecellsenescenceandmulti-directionaldifferentiationhavehamperedproducingBMSCsinquantitywiththeirundifferentiatedstate.Inthisstudywereportanaturalcompound,vitaminC(Vc),maintainsBMSCsstemproperty.MethodsHumanBMSCswereisolatedfrombonemarrowandpurifiedby1.073g/mLdensitygradientcentrifugation.50ng/mLVcwereaddedtoBMSCsfordifferenttimepoint.FlowcytometrywasusedtodetectcellsurfacemarkersofBMSCswithorwithoutVctreatment.BMSCsproliferationwasanalyzedbyMTTassay.PCR(polymerasechainreaction)andreal-timePCRwereusedfordetectingc-kit,nanog,andOct-4genesexpressionlevels.DNAmethyltransferase(Dnmt)1andDnmt3blevelswerealsodetectedbyreal-timePCR.ResultsFlowcytometryshowedthatafterVctreatmentfor6h,thesurfacemarkersofBMSCswerealmostunchanged.VcincreasedtheproliferationactivityofBMSCsfrom6hto24h.PCRshowedtheexpressionofc-kit,nanog,andoct-4geneswereobviouslyincreasedinVctreatedgroupthancontrolgroupat12h.Real-timePCRshowedthatthelevelofc-kit,nanog,andoct-4geneswereunregulatedfrom6hto12hcomparedwithcontrolgroup.VcalsoincreasedDnmt3bbutnotDnmt1geneexpression.ConclusionsOurresultsshowedVcactsatleastacceleratesBMSCsproliferationandmaintainsstemcellproperty.Inourstudy,wehighlightedamethodofimprovingthespeedofBMSCsgenerationandprovidedadditionalinsightsintothemechanisticbasisofpreventingBMSCssenescence.
简介:心电图改变一般不能提示疾病的病因,但有一些心电图改变具有一定的病因诊断价值,另有一些心电图改变可提供诊断线索.然而,心电图对左侧气胸的诊断意义尚未引起临床关注.本文分析10例左侧气胸病例,发现其有左室面导联(I、aVL、V4、V5、V6导联)R波低电压、位置性Q波、QRS振幅变化及R波逆向递增等较为明显的心电变化,其中左室面导联R波电压于坐位时描记心电图又发生了成倍增加,其增加率107%~780%(376.50±225.99),与正常组-22%~73%(-42.33±37.76)及肺气肿组-28%~40%(-31.28±27.64)比较,P<0.01,有显著统计学意义.
简介:BackgroundInthisstudy,weaimedtoevaluatetheimpactofabnormalglucose,lipidandCystatin-ConthevirtualPvectorcharacteristics,whichhaven’tbeenreportedinpreviousstudies.Methods204ofnon-diabetesmellitus(NDM),130ofDM(type2)and39ofimpairedglucosetolerance(IGT)patientswereconsecutivelyandretrospectivelyrecruited.Weselectedaone-minutelengthofelectrocardiogramat4AMforanalysis.Afteraseriesofcalculatingalgorisms,weobtainedthevirtualplanarPvectorparameters.ResultsTherewerenosignificantdifferencesinFPV,FPA,RSPV,RSPA,HPVandHPAgroups.Afteradjustingconfoundingfactors,theregressioncoefficients(RC)wereestimatedasfollow:forFPV,femalegender(RC-0.21,P=0.02),triglyceride(RC-0.09,P<0.01),RVOT(RC0.03,P=0.02);forRSPV,femalegender(RC-0.21,P<0.01),triglyceride(RC-0.10,P<0.01),averageheartrate(RC0.01,P=0.02);forHPV,triglyceride(RC-0.08,P<0.001),LDL(RC-0.19,P<0.01),ApoB(RC0.67,P<0.01);forRSPA,Btypeofblood(RC-22.06,P=0.02),Cystatin-C(RC-72.79,P=0.02),thicknessofinterventricularseptum(RC3.70,P=0.01).Cystatin-CwassuggestedasacurerelatedtoRSPA,andthecut-offpointwas1.6mg/L.TherewerenosignificantriskfactorsassociatedwithFPAandHPA.TherewasnodifferenceinvirtualPvectoramongDM,IGTandNDMgroups.ConclusionIncreasedlevelsoflipidandCystatin-CsignificantlyimpactthecharacteristicsofvirtualPvector,whereasglucosedoesnot.Thesechangesmaycomefromahigherlowvoltageatrialareaandabnormalorientationofatrialdepolarization.
简介:目的探讨络风宁1号方对心肌梗死大鼠血栓调节素-活化蛋白C-内皮细胞蛋白C受体系统的调节作用。方法将SD大鼠随机分为假手术组(7只)、模型组(8只)、络风宁1号方组(7只)、联合用药组(8只)、卡托普利组(8只),心肌梗死造模后络风宁1号组及联合用药组予含生药量4.81g/(kg·d)的络风宁1号方汤剂,卡托普利组及联合用药组予卡托普利片7.5mg/(kg·d),假手术组及模型组予相同体积蒸馏水,2/d,连续4周。4周后测定各组大鼠心肌梗死边缘组织血栓调节蛋白(TM)、活化蛋白C(APC)、内皮细胞蛋白C受体(EPCR)基因及蛋白的表达。结果模型组大鼠EPCR、TM的mRNA、sEPCR、sTM含量较假手术组明显升高(P<0.05),EPCR、TM的蛋白表达及APC含量较假手术组下降(P<0.05);络风宁1号组、联合用药组EPCR、TM的mRNA以及含量较模型组降低,差异有统计学意义(P<0.05),EPCR蛋白表达较模型组增加,差异有统计学意义(P<0.05);络风宁1号组、联合用药组血清APC含量较模型组增加(P<0.05)。结论络风宁1号方能够减轻膜结合型EPCR、TM的损伤,抑制了TM、EPCR的mRNA代偿性增加,使sEPCR、sTM含量下降,APC含量增加。