Quantitative Analysis of the Tomographic Technetium－99m MIBI （~（99m）Tc－MIBI） Myocardial Bullseye Display： Application to Diag

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Monitoring of biological responses of tumor cells after irradiation with99mTc-MIBI — Anin vitro study

Summary To explore the possibility to employ^99mTc-MIBI to monitor biological response of tumor cells after irradiation and to observe the relation between the radiation doses and the uptake levels of^99mTc-MIBI in tumor cells, the cells were irradiated with a single dose of 2 Gy, 10 Gy and 20 Gy respectively. The uptake of^99mTc-MIBI in each dosage group was determined before and 24, 48, 72 h after irradiation respectively. Apoptosis index (AI), plating efficiency (PE) of tumor cells was simultaneously determined. There was a positive correlation between uptake levels of^99mc-MIBI and AI(r = −0.91,P< 0.05). A negative correlation was noted between the uptake levels and PE (r = −0.86,P< 0.05). It is suggested that^99mTc-MIBI may be used as a tracer to monitor the change of viability state of tumor cells after being irradiated with different doses.     

急性心肌梗死患者血清lncRNA GAS5水平与左室重构的相关性

目的 探究心肌梗死患者血清长链非编码RNA（lncRNA）GAS5水平与左室重构（LVR）的关系。方法 选取2018年4月—2019年4月在天津市泰达医院接受治疗的169例急性心肌梗死患者作为研究对象，根据是否发生LVR分为LVR组62例与非LVR组107例。采用实时荧光定量聚合酶链反应检测血液lncRNA GAS5相对表达量，超声检测左心室舒张末期容积（LVEDV）、左心室收缩末期容积（LVESV）、左室射血分数（LVEF）及左室重构指数（LVRI）。采用Pearson法分析lncRNA GAS5与左心室指标的相关性，Logistic回归分析lncRNA GAS5与急性心肌梗死心室重构的关系，ROC曲线分析lncRNA GAS5对急性心肌梗死患者LVR的预测价值。结果 LVR组甘油三酯（TG）、LVEDV及LVESV高于非LVR组（P <0.05）；而LVEF、LVRI低于非LVR组（P <0.05）。LVR组lncRNA GAS5较非LVR组降低（P <0.05）。lncRNA GAS5与LVEDV、LVESV呈负相关（r =-0.324和0.458，P =0.000和0.001），与LVEF、LVRI呈正相关（r =0.376和0.395，均P =0.000）。LVEF［O=3.152（95% CI：1.651，6.016）］、LVRI［O=1.354（95% CI：1.137，1.614）］及lncRNA GAS5［O=1.265（95% CI：1.346，1.189）］是影响急性心肌梗死者发生LVR的危险因素。lncRNA GAS5诊断急性心肌梗死患者LVR的临界值为0.812，AUC为0.827（95% CI：0.768，0.891），敏感性为71.56%（95% CI：0.603，0.788），特异性为82.66%（95% CI：0.742，0.923）。结论 急性心肌梗患者血清lncRNA GAS5水平降低与LVR的发生有关，在心室重构诊断中具有一定的临床价值。     

Effect of Technetium-99 Conjugated with Methylene Diphosphonate on IgM-RF,IgG-RF and IgA-RF

Technetium 99conjugatedwithmethylenediphosphonate(99Tc MDP)hasbecomeafirstclassofnewdruginrecentyearsbecauseofitsspecialphar macologicaleffectonrheumatoidarthritis (RA) [1] .Rheumatoidfactors (RFs) (includingIgM RF ,IgG RFandIgA RF)aretheimportantmarkersofdiag nosis,activitydegree ,drugtherapeuticefficacyandprognosisjudgementofRA ,whichplayanimportantroleontheonsetandproceedingofRA[2 ] .Toexplorethetherapeuticeffectof99Tc MDPonRAfurther ,thisstudywasdesignedtoobserveespeciallytheef…     

超声心动图定量参数与急性心肌梗死患者ECMO早期撤机结局的关系探讨

目的 探讨超声心动图定量参数与急性心肌梗死患者体外膜氧合器（ECMO）早期撤机结局的关系。方法 回顾性分析2020年2月—2022年2月淮安市第二人民医院收治的82例采用ECMO救治的急性心肌梗死患者的临床资料。采用彩色多普勒超声诊断仪测量患者上机和撤机后的超声心动图参数，包括左室射血分数（LVEF）、二尖瓣侧壁瓣环收缩速度（Sa）、右室面积变化分数（RVFAC）和左室流出道速度-时间积分（LVOT-VTI）；统计患者撤机后28 d生存情况，比较死亡患者和生存患者上机和撤机后超声心动图参数的差值；采用一般多因素Logistic回归分析影响急性心肌梗死患者ECMO早期撤机结局的因素；绘制受试者工作特征（ROC）曲线分析超声心动图定量参数对急性心肌梗死患者ECMO早期撤机结局的预测效能。结果 撤机后随访28 d,82例急性心肌梗死患者有24例死亡。死亡患者的多脏器功能衰竭占比、多支血管病变占比均高于生存患者（P<0.05）；死亡患者上机和撤机后LVEF差值、Sa差值、RVFAC差值、LVOT-VTI差值均低于生存患者（P<0.05）；一般多因素Logistic回归分析结果显示，...     

利用小动物SPECT/CT和99m锝-葡糖二酸评估急性缺血坏死心肌的动物实验研究

目的 利用^99m锝-葡糖二酸（^99mTc-Glucarate）和小动物SPECT/CT评估大鼠急性心肌缺血再灌注损伤后缺血坏死心肌的位置和范围。方法 建立大鼠急性缺血再灌注损伤模型,手术1 d后尾静脉注射^99mTc-Glucarate,注射30 min后利用小动物SPECT/CT融合技术分析^99m锝-葡糖二酸标记的心肌组织的位置和范围,并与氯化三苯基四氮唑（triphenyltetrazolium chloride,TTC）染色法标记的缺血坏死心肌比较。结果 小动物SPECT/CT结果显示手术组心肌坏死部位的^99m锝-葡糖二酸的放射性摄取率（心肝比值 1.90±0.33）明显高于正常组大鼠（P< 0.05）,利用小动物SPECT/CT融合技术定位的缺血坏死心肌范围和TTC染色法的测量结果呈线性相关（R²=0.964）。结论 通过^99m锝-葡糖二酸可以特异性地标记急性缺血坏死心肌,利用小动物SPECT/CT融合技术可以无创性地分析急性缺血坏死心肌的位置和范围。     

A Comparative Study of ^99mTc-YIGSR and ^99mTc-MIBI Uptake in Tumor Cells

Summary To investigate a new kind of tumor tracer^99mTc-YIGSR developed from a five amino structure (YIGSR) of the Laminin-chain, which can bind to the laminin receptors of tumor specifically, and radiolabeled with MAG₃. (1) Preparation of the^99mTc-YIGSR probe: with S-Acetly-NH₃-MAG₃ as the chelator and with proper reductants YIGSR was labeled with^99mTc; (2) Cell culture and viability measurement: EAC was maintained in RPMI 1640 supplemented with calf serum; the trypan blue exclusion was applied to calculate the cell viability; (3) Study of the cell dynamic: The EAC's uptake of^99mTc-YIGSR and^99mTc-MIBI was observed at 37 °C and 22 °C, respectively. (1) The labeling efficiencies of^99mTc-YIGSR and^99mTc-MIBI were (62±3)% and (96±2)%, respectively; (2) The cell viability was declined with time of incubation; (3) At 37 °C, the EAC'S uptake of^99mTc-YIGSR and^99mTc-MIBI reached the peak of (43.16±2.4)% and (24.4±1.8)% at 60 min, respectively; and at 22 °C, the highest uptake was (26.5±2.1)% and (9.47±1.9)% at 60 min, respectively. Thein vitro study suggests that^99mTc-YIGSR is superior to^99mTc-MIBI in cell uptake and has potential value in tumor imaging. HU Jia, female, born in 1963, Technician     

TET2基因单核苷酸多态性与急性心肌梗死易感性的关系

目的 探讨TET2基因单核苷酸多态性（rs2454206、rs12498609）与急性心肌梗死易感性的相关性。方法 前瞻性选取2022年1月—2022年9月承德医学院附属医院收治的急性心肌梗死患者作为病例组，另选取同期该院健康人群作为对照组，每组150例。比较两组一般资料及血脂相关指标，采用实时荧光定量聚合酶链反应（q RT-PCR）检测TET2基因rs2454206、rs12498609位点基因型，采用多因素Logistic逐步回归分析影响急性心肌梗死发生的危险因素。结果 两组TET2基因rs2454206位点、rs12498609位点基因型频率、等位基因频率比较，差异均有统计学意义（P<0.05）。多因素Logistic逐步回归分析显示，高血压■、rs2454206位点AA基因型■、rs12498609位点CC基因型■是影响急性心肌梗死发生的危险因素（P<0.05),■]是影响急性心肌梗死发生的保护因素（P<0.05）。结论 急性心肌梗死的发生受多种因素影响，其中TET2基因rs2454206位点AA基因型、rs12498609位点CC基因型可能与急性心肌梗死易感...     

Detection of ischemic myocardium with a new hypoxic tissue targeting tracer99Tcm-HL91

Summary The imaging appearances of⁹⁹Tc^m-HL91, a new hypoxic imaging agent, in ischemic myocardium were studied and the value of⁹⁹Tc^m-HL91 in the evaluation of regional ischemic viable myocardium was explored. Acute myocardial ischemia models were made by coronary artery legations in 18 rats and randomly divided into 2 groups:⁹⁹Tc^m-HL91 group and⁹⁹Tc^m-MIBI group. Evan blue infusion during ischemia and TTC staining after operation were used to delineate the area of ischemic and viable myocardium. The isolated heart was sliced in the short axis and then autoradiography was performed. The electron microscopic examination was also done for the myocardial samples.⁹⁹Tc^m-HL91 and⁹⁹Tc^m-MIBI uptake activities (counts/g) were measured in the area of ischemic myocardium (T) and normal myocardium (NT) separately. The uptake ratios of⁹⁹Tc^m-HL91 and that of⁹⁹Tc^m-MIBI in ischemic myocardium were calculated as T/NT. It was found that the normal myocardium was blue and ischemic or infarct myocardium was negative with Evans blue in all experiment rats. Both the normal and ischemic myocardium was in red color with TTC staining. In the⁹⁹Tc^m-HL91 group the ischemic myocardium showed much higher uptake over normal myocardium, that was demonstrated both in the autoradiography and quantitative analysis. The ischemic/normal activity ratios were 1.634±0.354. It was suggested that⁹⁹Tc^m-HL91 might accumulate in ischemic and viable myocardium, which is helpful in the evaluation of hypoxic but viable myocardium and potentially used as a imaging agent to assess myocardial viability. Lü Jiagao, male, born in 1965, Associate Professor     

Value of Quantitative Tissue Velocity Imaging in the Detection of Regional Myocardial Function in Dogs with Acute Subendocardial Ischemia

This study evaluated the application of quantitative tissue velocity imaging （QTVI） in assessing regional myocardial systolic and diastolic functions in dogs with acute subendocardial ischemia. Animal models of subendocardial ischemia were established by injecting microspheres （about 300 μm in diameter） into the proximal end of left circumflex coronary artery in 11 hybrid dogs through cannulation. Before and after embolization, two-dimensional echocardiography, QTVI and real-time myocardial contrast echocardiography （RT-MCE） via intravenous infusion of self-made microbubbles,were performed, respectively. The systolic segmental wall thickening and subendocardial myocardial longitudinal velocities of risk segments before and after embolization were compared by using paired t analysis. The regional myocardial video intensity versus contrast time could be fitted to an exponential function： y=A·（1-exp-β·t）, in which the product of A and β provides a measure of myocardial blood flow. RT-MCE showed that subendocardial normalized A·β was decreased markedly from 0.99±0.19 to 0.35±0.11 （P〈0.05） in 28 left ventricular （LV） myocardial segments after embolization, including 6 basal and 9 middle segments of lateral wall （LW）, 8 middle segments of posterior wall （PW） and 5 middle segments of inferior wall （IW）. However, there was no statistically significant difference in subepicardial layer before and after embolization. Accordingly, the ratio of A·β of subendocardial myocardium to subepicardial myocardium in these segments was significantly decreased from 1.10±0.10 to 0.31±0.07 （P〈0.05）. Although the systolic wall thickening did not change 5 min after the embolization in these ischemic segments （29%±3% vs 31%±5%, P〉0.05）, the longitudinal peak systolic velocities （Vs） and early-diastolic peak velocities （Ve） recorded by QTVI were declined significantly （P〈0.05）. Moreover, the subendocardial velocity curves during isovolumic relaxation predominant     

Influence of Shengmai Capsule (生脉胶囊) on recovery of living capacity in patients after myocardial infarction

ABSTRACT Objective： To observe the effect of long-term application of Shengmai Capsule （生脉胶囊, SMC） on recovery of patients after myocardial infarction. Methods： A total of 120 myocardial infarction patients were assigned into two groups. Changes of angina pectoris, electrocardiogram （ECG）, living capacity and heart function in patients were observed after 6-month treatment. Results： The total effective rate in alleviating angina pectods was 90.0% and that in improving ECG figure was 93.3% in the treatment group, both were significantly higher than those in the control group, 73.4% and 70.0% respectively （P〈0.05）. The Karnofsky Performance Status scores of heart function were increased and the Activity of Daily Living scores in living capacity decreased in both groups, but the improvements were better in the treatment group （P〈0.01 and P〈0.05）. The parameters of cardiac function, including cardiac output, stroke volume, cardiac index and ejection fraction, were increased in both groups, but the increments in the treatment group were more significant （P〈0.01 or P〈0.05）. Conclusion： Long-term application of SMC could effectively prevent and treat angina pectoris, improve the living capacity and accelerate the recovery of heart function in patients after myocardial infarction.     

Relationship between Levels of Serum C-Reactive Protein,Leucocyte Count and Carotid Plaque in Patients with Ischemic Stroke

Thereisincreasingevidenceshowingthatatherosclerosisisachronicinflammatorydisorder .Prospectivestudieshaveshownthathigherseruma cutephaseproteinlevelsareassociatedwiththein creasedriskofmyocardialinfarction ,strokeorpe ripheralvasculardiseaseandcanpredicttheriskofin farctionanddeathamonghigh riskpatients[1- 3] .Re centdatahavealsosuggestedthatcarotidduplexDopplerultrasoundisanusefulwaytostudyatheroscleroticriskfactors ,becauseasymptomaticcarotidwallthickeningandplaqueformationmaybeaprecursortoc…     

门控心肌灌注和心肌代谢显像评价新方法制作小型猪室壁瘤模型的可行性

目的 应用门控心肌灌注和心肌代谢显像评价新方法建立小型猪室壁瘤模型的可行性。方法 中华小型猪16只,采用结扎冠状动脉钝缘支远端,并在左前降支(LAD)第1对角支分叉处以下1cm处放置Ameroid 环的方法建立模型。在建模后第4周采用门控心肌灌注/代谢显像观测左心室灌注受损情况(TPD)、存活心肌占左心室百分比(Mismatch)、室壁瘤形成情况以及左心室射血分数(LVEF)、左心室舒张末期容积(EDV)、左心室收缩末期容积(ESV)等指标。建模后第8周处死动物,取病理结果进行分析。结果 建模总体病死率为31.2% (11/16),病理结果证实,8头小猪心尖部有室壁瘤形成。8头小猪完成术后第4周显像,显像结果提示,6头小猪心尖部有室壁瘤形成,2头小猪仅呈现非透壁性心肌梗死表现。与心肌梗死组获得的参数相比较,室壁瘤组的左心室灌注总受损范围(TPD)、舒张末期容积(EDV)、收缩末期容积(ESV)明显增高,左心室射血分数(LVEF)及存活心肌百分比(Mismatch)明显下将,差异有统计学意义(P<0.05)。结论 通过门控心肌灌注和心肌代谢显像评价结扎冠状动脉钝缘支远端并在左前降支第1对角支下1cm处放置Ameroid 环的方法,是比较理想的建立室壁瘤模型的方法,该方法操作简单、可行,建模成功率高,动物存活率满意,建模后第4周左心室重构明显。     

SOMATOM Force双源CT颅脑灌注联合sdLDL-C、MOTS-c在急性脑梗死中的诊断价值

目的 研究SOMATOM Force双源CT颅脑灌注联合小而密低密度脂蛋白胆固醇（sdLDL-C）、线粒体衍生肽（MOTS-c）在急性脑梗死（ACI）中的诊断价值。方法 选取广州医科大学第三附属医院2019年5月—2020年8月治疗的疑似ACI患者102例。所有患者接受SOMATOM Force双源CT检查及颅脑灌注成像。采用逐步多因素Logistic回归分析影响ACI的因素;采用Pearson法分析MOTS-c、sdLDL-C与脑血容量（CBV）、脑血流量（CBF）、达峰时间（TTP）、平均通过时间（MTT）的相关性;采用受试者工作特征（ROC）曲线分析sdLDL-C、MOTS-c、SOMATOM Force双源CT颅脑灌注诊断ACI的临床价值。结果 102例患者经脑部CT及磁共振成像检查确诊ACI 78例（ACI组）,无ACI 24例（无ACI组）。ACI组患者的CBV、CBF、MOTS-c低于无ACI组,MTT、TTP、sdLDL-C高于无ACI组（P <0.05）。Pearson相关分析显示,MOTS-c与CBV（r =0.435,P =0.000）、CBF（r =0.457,P =0.000）呈正相关,与MTT（r =-0.523,P =0.000）、TTP（r =-0.422,P =0.000）呈负相关,sdLDL-C与CBV（r =-0.427,P =0.000）、CBF（r =-0.443,P =0.000）呈负相关,与MTT（r =0.486,P =0.000）、TTP（r =0.414,P =0.000）呈正相关。逐步多因素Logistic回归分析显示：CBV［O^R=0.352（95% CI：0.145,0.858）］、CBF［O^R=0.397（95% CI：0.194,0.816）］、MOTS-c［O^R=0.456（95% CI：0.255,0.815）］为ACI的保护因素（P <0.05）,MTT［O^R=2.022（95% CI：1.392,3.075）］、TTP［O^R=1.931（95% CI：1.085,3.436）］及sdLDL-C［O^R=2.416（95% CI：1.085,5.513）］为ACI的危险因素（P <0.05）。MOTS-c、sdLDL-C、SOMATOM Force双源CT颅脑灌注及联合诊断的敏感性分别为71.8%、83.3%、79.5%和85.9%,特异性分别为83.3%、83.3%、70.8%和87.5%。MOTS-c、sdLDL-C、SOMATOM Force双源CT颅脑灌注诊断ACI曲线下面积为0.818（95% CI：0.705,0.932）、0.788（95% CI：0.670,0.907）、0.804（95% CI：0.712,0.896）,均低于联合诊断的0.877（95% CI：0.779,0.973）（P <0.05）。结论 sdLDL-C、MOTS-c在ACI患者中异常表达,与SOMATOM Force双源CT颅脑灌注参数有相关性,联合检测ACI有较高的诊断价值。     

神经元特异性烯醇化酶及乳酸水平与新生儿窒息心肌损伤严重程度的关系

目的 探讨神经元特异性烯醇化酶（NSE）和乳酸水平在评估新生儿窒息后心肌损伤严重程度中的应用价值。方法 回顾性分析2020年10月—2023年10月常州市妇幼保健院收治的120例新生儿窒息并合并心肌损伤的患儿。根据心肌损伤标志物心肌肌钙蛋白Ⅰ（cTnⅠ）水平,将患儿分为轻度组（79例）和重度组（41例）,并选取同期在该院出生的60例健康新生儿作为对照组。比较3组的血清NSE、乳酸、脑钠肽及乳酸脱氢酶（LDH）水平。采用Spearman相关性分析血清NSE、乳酸与心肌损伤标志物的相关性;绘制受试者工作特征（ROC）曲线分析这些指标对新生儿窒息心肌损伤严重程度的诊断价值。结果 重度组的NSE和乳酸水平高于轻度组和对照组（P <0.05）,且轻度组的NSE和乳酸水平高于对照组（P <0.05）。NSE与cTnⅠ、脑钠肽及LDH呈正相关（r_S=0.604、0.596和0.631,均P <0.05）,乳酸与cTnⅠ、脑钠肽及LDH呈正相关（r_S=0.748、0.666和0.738,均P <0.05）。NSE和乳酸在诊断心肌损伤严重程度时具有较高的敏感性［95.1%（95% CI：0.835,0.994）］和特异性［93.7%（95% CI：0.858,0.979）］。结论 NSE和乳酸可作为评估新生儿窒息后心肌损伤严重程度的有效生物标志物,有助于临床医师在早期进行风险评估和制订合适的治疗策略。     

99mTcO4-甲状腺显像对甲状腺摄碘-131 率测定的影响

目的 观察Na^99mTcO^-₄甲状腺显像对甲状腺¹³¹I放射性计数的影响及其随时间变化的规律。方法 以2013年3月至5月在北京协和医院核医学科就诊并已行甲状腺摄碘率(RAIU)测定的40例Graves病甲状腺功能亢进患者为研究对象,静脉注射Na^99mTcO^-₄(185MBq)行甲状腺显像以测定甲状腺面积,采用甲状腺功能仪分别测定患者注射Na^99mTcO^-₄后1、25、49、73、169 h甲状腺内放射性计数,并利用半衰期公式推算25、49、73 h时甲状腺内来自于¹³¹I及^99mTc的放射性计数,以^99mTc/室本底计数(1200)相对值为参考,观察^99mTc放射性计数随时间的变化规律及其对RAIU的影响,同时计算出⁹⁹Tc^m在甲状腺内的有效半衰期(Teff ^99mTc),观察其与游离三碘甲状腺原氨酸(FT3)、游离甲状腺素(FT4)、¹³¹I有效半衰期(Teff ¹³¹I)间的相关性。结果 静脉注射Na^99mTcO^-₄后第1、25、49、73h,通过甲状腺功能仪测定出来自^99mTc的放射性计数分别为(440.16±247.35)×10⁴、(11.37±10.67)×10⁴、(0.13±0.36)×10⁴、(-0.10±0.19)×10⁴,其与室本底比值分别为3668.00、94.75、1.08、NA。Teff ^99mTc为(4.41±0.49)h,与FT3、FT4和Teff ¹³¹I均无明显相关;Teff ¹³¹I与FT3(r=-0.503,P=0.003)、FT4(r=-0.516,P=0.002)则呈负相关。结论 甲状腺功能亢进患者甲状腺内Teff ^99mTc为4.41 h。注射Na^99mTcO^-₄ 3 d后,Na^99mTcO^-₄甲状腺显像对RAIU测定已无影响。^99mTc的有效半衰期与患者甲状腺激素水平和摄碘功能无明显相关性。     

试析寸口脉分候脏腑

关于寸口脉的脏腑分候问题,历代认识不一.目前临床较为普遍采取的是右寸候肺,右关候脾胃,右尺候肾(命门);左寸候心,左关候肝,左尺候肾之说.这种分候方法,不仅有一定的理论根据,而且在临床上有一定的指导意义,兹分述如下.     

Evaluation of ^99mTc Labeled Diadenosine Tetraphosphate as an Atherosclerotic Plaque Imaging Agent in Experimental Models

99mTclabeledP1,P4di(adenosine5')tetraphos phate(Ap4A),whichcanspecificallybindtoP2purinereceptorsexpressedonatheroscleroticlesions,wasstudiedforexperimentalatheroscleroticplaquesima ginginNewZealandWhite(NZW)rabbits.1MATERIALSANDMETHODS1.1AnimalModelsNZWrabbits,weighing1.5-2.0kg,werepurchasedfromExperimentalAnimalCenterofTongjiMedicalCollege.Atheroscleroticmodelsof20maleNZWrabbitswerereplicatedbyimmuno injuryandhighcholesteroldiet[1].Afterintrave nousinjectionof10%bovineseruma…     

急诊PCI术中冠状动脉内应用不同药物对急性ST段抬高型心肌梗死患者心肌灌注效果分析

目的 分析急诊经皮冠脉介入术（PCI）中冠状动脉内应用不同药物对急性ST段抬高型心肌梗死患者术后心肌灌注效果的作用。方法 选取2016年2月—2018年12月徐州医科大学附属医院心血管内科收治的急性ST段抬高型心肌梗死患者120例，随机分为两组。研究组采用急诊PCI术联合冠状动脉内应用替罗非班，对照组采用急诊PCI术联合冠状动脉内应用尿激酶。比较两组治疗后心肌再灌注指标、心功能指标、心血管意外事件。结果 研究组患者CK-MB峰值、CK-MB峰值时间低于对照组（P <0.05），研究组患者一氧化氮NO水平优于对照组（P <0.05）。研究组患者TIMI血流分级优于对照组（P <0.05）。研究组患者ST段回降率优于对照组（P <0.05）。研究组患者LVEF、LVEDV、LVESV均优于对照组（P <0.05）。研究组患者的sICAM-1、sVCAM-1、vWF、hs-CRP均低于对照组（P <0.05）。研究组患者术后30 d的心血管不良事件发生率低于对照组（P <0.05）。结论 急诊PCI术中采用冠状动脉内用药，相较于传统尿激酶，替罗非班有利于改善心脏灌注效果，提升心功能评分并降低心血管不良事件的发生率，其安全性与稳定性较好，有利于改善患者的临床疗效与预后。     

The Dynamic Change of TGF-β1 in the Myocardial Remodeling of Rat after Myocardial Infarction

Chronic heart failure is the leading cause of mortality and morbidity in most countries. Ventricular remodeling was the important pathophysiological process of heart failure. Mechanical overload, neurohormones and system nerve adrenal gland system can evoke remodeling. There are plentiful evidence indicating that inflammation plays an important role in the ischemic cardiac disease[1—3]. In this study we used the MI rat to observe the morpho- logical change of the ventricle, expression of the…