简介:目的探讨巴曲酶对大鼠局灶性脑缺血-再灌注后血小板活化因子(PAF)含量及PAF受体基因表达的影响.方法将健康Wistar雄性大鼠40只分为五组,各组8只.Ⅰ组为假手术组;Ⅱa组为等渗盐水组缺血6h再灌注6h组;Ⅱb组为等渗盐水组缺血6h组;Ⅲa组为巴曲酶组缺血6h再灌注6h组;Ⅲb组为巴曲酶组缺血6h组.用线栓法建立大鼠大脑中动脉闭塞(MCAO)及再通模型.应用逆转录聚合酶链反应技术检测MCAO及再通后缺血半暗带皮质PAF受体基因表达,同时用Elisa方法检测血浆PAF含量.结果Ⅱa组、Ⅱb组大鼠血浆PAF含量分别为(1480±249)ng/L和(1052±199)ng/L,PAF受体基因表达的吸光度(A)值分别为0.44±0.06和0.48±0.05;Ⅰ组大鼠血浆PAF含量为(506±55)ng/L,PAF受体基因表达A值为1.07±0.27.Ⅱa组、Ⅱb组与Ⅰ组大鼠的上述两个指标比较,差异均有显著意义.Ⅲa、Ⅲb组大鼠PAF含量分别为(848±80)ng/L和(743±105)ng/L,PAF受体基因表达A值分别为0.63±0.08和0.67±0.06,分别与Ⅱa组、Ⅱb组大鼠比较,差异均有显著意义.结论巴曲酶可降低脑缺血-再灌注后血浆中PAF含量,并且可能对脑缺血-再灌注缺血半暗带皮质组织PAF受体基因表达有影响.
简介:目的:探讨急性心肌梗死采用快速检测心肌标志物诊断的价值。方法:选取50例急性心肌梗死患者作为观察组,同时期的健康体检者50例作为对照组,均为2017年10月至2019年10月期间收治,均给予快速检测心肌标志物,分析观察组入院后不同时间段的Mb、CK-MB、cTnT以及对照组入院时的Mb、CK-MB、cTnT。结果:观察组入院时、入院8h、入院16h、入院24h的Mb、cTnT均高于对照组,入院时的CK-MB与对照组无差异,P>0.05;入院8h、入院16h、入院24h的CK-MBP高于对照组,P<0.05。结论:急性心肌梗死采用快速检测心肌标志物诊断价值较高,有助于医生做出正确判断,保证患者得到最及时的治疗。
简介:ObjectivesTostudyclinicalandcoronaryangiographicfindingsinpatientswithbothcoronaryheartdiseases(CHD)andtype2diabetesmellitus(T2DM).Methods215patientswithCHDconfirmedbycoronaryangiographywereinvolvedinthisstudy.Thepatientsweredividedintotwogroups:74CHDpatientswithT2DM(meanage64.7±8.2years,male/female47/27),and141CHDpatientswithoutT2DM(meanage66.2±9.2years,male/female100/41).Theclinicalfeaturesandthedatafromselectivecoronaryangiographieswerecomparedbetweentype2diabeticandnon-diabeticCHDpatients.ResultsComparedtonon-diabeticCHDpatients,thepatientswithbothCHDandT2DMsufferedmorefromacutemyocardialinfarction,silentischemiaandseverearrhythmias(P<0.01,P<0.05),andhadhigherserumtriglyceridesandapo-lipoproteinB,alongwithincreasedserumuricacid(P<0.01,P<0.05),increasedleftventricularenddiastolicdiameter(P<0.01),anddecreasedleftventricularejectionfraction(P<0.001).Comparedtonon-diabeticCHDpatients,thepatientswithbothCHDandT2DMsufferedmorefromtriplevesseldisease(P<0.01),severecoronaryarterystenosis,completeocclusionsanddiffuselesions(P<0.001).ConclusionsSevereclinicalmanifestation,leftventriculardysfunction,diffuseorcomplicatedlesionsofcoronaryarteriesweremorecommoninpatientswithbothCHDandT2DM,itsuggeststhatthetype2diabeticCHDpatientshavepoorprognosis.
简介:Themyocardialprotectionaffordedbyischemicpreconditioning(IPC)canalleviateischemia-reperfusioninjuryinnormalratheart.However,thismyocardialprotectionisseldomstudiedinthetype2diabeticratwithmyocardialischemiadisease.Inthisstudy,weaimedtoevaluatetheeffectsofATP-sensitivepotassiumchannels(KATPchannels)onIPCintheisolatedtype2diabeticratheartandtheroleofthesulfonylureagliclazide.MethodsStreptozotocin(STZ)-inducedtype2diabeticmaleWistarratswithorwithoutgliclazide(64mg/kgbodyweight,orally)andage-matchednon-diabeticcontrolratswereusedforallstudies.TheisolatedheartswereperfusedwithLangendorff'ssystemundertheconstantflow,pressureandtemperatureconditionswithKreb's-Henseleitsolution(K-H).After5minutesofbalanceperfusion,theseratswererandomlydividedintosixgroups:non-diabeticcontrolratswithoutIPC(CIR);non-diabeticcontrolratswithIPC(CIP);diabeticratswithoutIPC(DIR);diabeticratswithIPC(DIP);gliclazide-treateddiabeticratswithoutIPC(GIR);andgliclazide-treateddiabeticratswithIPC(GIP).GroupsCIR,DIR,andGIRweresubjectedto30-minglobalischemiaand60-minreperfusionforinductionofischemia/reperfusioninjury.GroupsCIP,DIP,andGIPweregiventhreecyclesof5-minischemiaand5-minreperfusionasIPC,andthenischemia/reperfusioninjuryprogramwasimplemented.Extentofischemia/reperfusioninjurywasmeasuredintermsofthereleaseoflactatedehydrogenase(LDH),creatinekinase(CK),andcreatinkinase-MB(CKMB)incoronaryeffluent.Afterperfusion,Kir6.2andSUR2AmRNAexpressionsinthemyocardialtissuewerecharacterizedbyfluorescentquantitativereal-timePCRmethod,andKir6.2andSUR2Aproteinexpressionswereassessedbyimmunohistochemistry.ResultInnon-diabeticcontrolrats,thereleaseofLDH,CK,andCK-MBincoronaryeffluentmarkedlydecreasedwithIPCcomparedwithNo-IPC(P<0.05),butnotindiabeticrats.However,ingliclazide-treateddiabeticrats,IPC-induceddecreaseintherele
简介:ObjectivesTheeffectsofcarvediloloncalciumcurrent(ICa)wereinvestigatedinisolatedadultratventricularmyocytes.MethodsICawasrecordedbyusingwhole-cellpatch-clamprecordingtechnique.ResultsCarvedilolreversiblyinhibitedICainaconcentration-dependentmanner,carvedilolat0.1,0.3,1and10μmol/LintheextracellularsolutiondecreasedpeakICaby1.52%,18.04%,37.34%and72.18%,respectively.Thesteady-stateinactivationcurveofICawasshiftedtomorenegativepotentials,whiletheactivationcurvewasnotaltered.Therecoveryfrominactivationwasshiftedtorightdirection,itcouldnotberecoveredcompletely.Inaddition,Pretreatmentofventricularmyocyteswithprazosinandpropranololcouldn'tblockthecarvedilol-inducedreductionofICa.ConclusionsCarvedilolinhibitsICainadultratventricularmyocytesbymechanismsinvolvingpreferentialinteractionwiththeinactivatedstateofcalciumchannel.
简介:目的:探讨2型糖尿病(T2DM)合并高血压与否对脂代谢、微血管病变、血液流变学的影响。方法:192例T2DM患者被分为血压正常组(A组,96例)和合并高血压组(B组,100例),对两组的一般情况、血压、脂代谢、微血管损害及血液流变学情况进行比较分析。结果:B组的血压(148±24)mmHg/(86±15)mmHg、胆固醇(6.0±0.9)mmol/L、血肌酐(70±21.1)μmol/L、血尿酸(343±81)μmol/L和低切粘度(11.02±2.3)均高于A组,有显著性差异(P〈0.05-〈0.01)。结论:T2DM和高血压病均可导致血脂代谢异常,微血管损害和血液流变学的改变,当T2DM合并高血压时,前述异常和损害加重,应及早控制。
简介:目的对中西医结合治疗在2型糖尿病患者中的治疗方式进行讨论。方法选取我院2013年2月-2014年2月间64例2型糖尿病患者,将其分为两组,1组进行常规治疗,2组在进行常规治疗的同时配合中药治疗,对两组患者的治疗效果进行比较。结果1组患者治疗后效果显著的为13例,占比例的40.6%,治疗有效的为14例,占比例的43.8%,治疗无效的患者为5例,占比例的15.6%。2组患者治疗效果显著的为23例,占比例的71.9%,治疗有效的为8例,占比例的25%,治疗无效的仅为1例,占比例的3.1%。结论中西医结合方式治疗2型糖尿病的效果显著,且安全性高,是一种值得推广的治疗方式。
简介:ObjectivesToevaluateantihypertensiveefficiencyandsafetyofanewdomesticofL-&N-typeCa^2+antagonist-eilnidipinewithimidaprilasapositivecontrol.MethodsAfter2weeks'placebowashingout,22patientsweretreatedwitheilnidipine5mgdailyand27patientsweretreatedwithimidapril5mgdaily.4weekslater,ifpatient'ssittingdiastolicbloodpressureisover90mmHg,his/herdosagewasdoubledforanother4weeks,theothersmeasuringupremainedtheirdosageunchangedforanother4weeks.Bloodpressure,heartrate,bloodandurineroutineexamination,serumglucose,serumchemicalexaminationincludingtotalcholesterol,triglyceride,HDL,LDL,transaminase,creatineetcandsidereactionswererecordedbeforeandafterthetrial.Datawereanalyzedstatistically.ResultsAfter8weeks'treatment,bloodpressurewassignificantlydecreased(P<0.05)inbothgroups,andthetwomedicineshadsimilarantihypertensiveeffects.Furthermore,thereducingofheartratewasstatisticallysignificantcomparedwithbaseline(P<0.01)inthecilnidipinegroup,butnotintheimidaprilgroup.Thenegativechronotropiceffectofcilnidipinehadlittleeffectoncontinuingthetherapy.Therewerenochangesonbloodandurineroutineexaminationandserumlipid,serumglucose,creatine,transaminaseandetcinbothgroups.Theirsidereactionsweremildandwell-tolerated.ConclusionsCilnidipinehasacon-vincingantihypertensiveeffectsimilartothatofimi-dapril.Especiallycilnidipinemaybeadministeredtopatientswithrelativelymildtachycardia.
简介:目的探讨黄芪对实验性病毒性心肌炎细胞凋亡及Fas/FasL基因的影响.方法Balb/c小鼠24只腹腔感染柯萨奇病毒B3(CVB3)后随机分成2组:治疗组(每天腹腔注射黄芪注射液100mg/10g)及对照组.第8d取心脏标本,进行病理学检查、细胞凋亡TUNEL法检测以及逆转录聚合酶链反应(RT-PCR)分析Fas和FasLmRNA的表达水平.结果①黄芪治疗组病变积分明显低于对照组(P<0.01).②黄芪治疗组心肌细胞凋亡指数(AI)明显低于对照组(P<0.01).③黄芪治疗组心肌组织Fas和FasL的mRNA相对表达量均明显低于对照组(P<0.01,P<0.05).结论黄芪可通过下调病毒性心肌炎小鼠心肌组织Fas和FasL基因转录,减少心肌细胞凋亡和心肌损伤.
简介:目的采用Meta分析的方法探讨肿瘤坏死因子-α(TNF-α)基因C-857T多态性与冠心病(CAD)易感性的关系。方法检索PubMed、WebofScience、万方、重庆维普和中国知网数据库,截止时间为2015年11月1日。由两名研究者对合格研究进行资料提取、质量评价,并用Stata11.0软件进行Meta分析。结果最终纳入7篇文献(共计8项独立的病例-对照研究),包括2928例CAD患者和3495例对照。Meta分析结果显示TNF-α基因C-857T多态性与CAD易感性在整体人群中无统计学相关性,而在亚洲人群及对照来源于医院的研究中却发现二者之间具有相关性。敏感性分析显示本研究结果稳定性良好,且未检测到发表偏倚。结论TNF-α基因C-857T多态性与CAD易感性之间可能无相关性,此结果仍需大样本量的病例-对照研究进一步验证。
简介:目的对影响华法林代谢及作用的多个相关基因进行测定,探讨其对中国人群低强度华法林抗凝稳定剂量的影响程度.方法共纳入170名拟采取低强度华法林抗凝治疗患者,对其与华法林代谢及作用相关的3个基因CYP2C9(rs1057910)、VKORC1(rs9923231)、CYP4F2(rs2108622)位点的基因多态性(SNP)进行检测,随后给予华法林治疗,目标国际标准化比值(INR)1.8-2.5,观察90天,同时记录患者的临床因素、INR值及华法林稳定剂量,分别判断临床及基因因素对华法林稳定剂量水平的影响作用.结果CYP2C9、VKORC1、CYP4F2的5个SNP位点的SNP对华法林稳定剂量存在显著影响(P<0.05).经多元回归分析,年龄、体表面积、抗凝第4天INR值以及CYP2C9、VKORC1、CYP4F2的SNP是华法林抗凝稳定剂量的独立影响因素;其中SNP可以独立解释18.6%的华法林稳定剂量的差异.结论在目标强度为INR1.8-2.5的低强度华法林抗凝治疗中,CYP2C9(rs1057910)、VKORC1(rs9923231)、CYP4F2(rs2108622)多态性对稳定剂量存在显著影响,可在临床工作中对上述3个SNP位点进行检测,对抗凝初期华法林的剂量进行预先调整.