简介：BackgroundTheregulationoft-PAgeneistheessenceandcoreofthrombosis.Therefore,thepresentstudyaimedtopreparenanot-PAgenecoatedstentandtoobserveitseffectoncoronarystentthrombosisindogs.MethodsHighlyexpressedt-PAgeneplasmidwasconstructedandalbuminnanot-PAgenecoatingstentwasprepared.Themajorbranchvesselsofdogcoronaryarterywerepre-expandedwitha3.0mm×20balloonwith8-10atmosphericpressure.10dogsofthecontrolgroupwereimplantedwithbaremetalstent;while12dogsoftheexperimentalgroupwereimplantedwithnanot-PAgenecoatingstent.Bothgroupswerenotgivenanti-coagulationtreatments.Bloodsamplesweretakenfort-PAandD-dimerbeforetheoperation,at1,2,4and8weeksafteroperation.Pathologicalanalysisfoundthrombosisinthecavityandthehyperplasiaoftheintima.t-PAexpressionwasdetectedbyimmunohistochemicalindirectly,andthethicknessoftheintimaofthesectioncrosswasdirectlymeasuredbymorphometry.Liver,heart,kidneysandlungweretakenforpathologicalobservation.ResultsAllexperimentalanimalssurvivedatpostoperative8weeks.Vascularstentthrombosiswasseenin10casesofthecontrolgroupwiththethrombosisrateof100%;whilewasseenin2casesamong12casesoftheexperimentalgroupwiththethrombosisratewas16.67%(P=0.00087).Immunohistochemicalstainingshowedthatthepositivet-PAgenetransfectionoftheexperimentalgroupwasmainlydistributedonthesurfaceofhyperplasiaintima,andvascularwallt-PAexpressionofthecontrolgroupwasnegative.Positivet-PAsignalwasnotfoundintheliver,heart,kidneysandlung.ConclusionNanot-PAgenevectorcoatingstentcaneffectivelyexpresst-PAinvascularwallandeffectivelypreventsstentthrombosis.

简介：目的分析急性心肌梗死（AMI）患者前白蛋白、脑钠肽（BNP）、心肌肌钙蛋白T（cTnT）、肌酸激酶同工酶（CK-MB）与短期预后的关系.方法回顾性分析2015年2月~2016年6月于解放军第九五医院心内科收治的61例AMI患者资料,男性29例,女性32例,年龄38~78岁,平均（56.14±5.76）岁.按治疗后30d内心脏不良事件发生情况,分为发生组（10例）与未发生组（51例）.入院后检测前白蛋白、BNP、cTnT、CK-MB水平.收集患者住院的-般资料,随访观察治疗后30d内心脏不良事件发生情况.结果与未发生组比较,发生组年龄、BNP、cTnT、CK-MB显著升高,糖尿病比例增加,心功能降低,差异有统计学意义（P均〈0.05）.多因素分析结果显示,年龄（OR=2.680,95%CI1.186~6.058）、糖尿病（OR=2.372,95%CI：1.161~4.822）、心功能分级（OR=3.364,95%CI：1.233~9.172）、BNP（OR=1.980,95%CI：1.125~3.483）、cTnT（OR=1.532,95%CI：1.077~2.352）为AMI患者预后不良的独立危险因素（P均〈0.05）.结论BNP、cTnT、CK-MB为AMI患者短期预后不良的影响因素,而前白蛋白与预后无明显相关.