目的探讨实时三维斑点追踪超声心动图(real-time three dimensional speckle tracking echocardiography,RT3D-STE)与外泌体微小核糖核酸(micro ribonucleic acid,miRNA)检测在评估早期急性心肌梗死(acute myo⁃cardial infarction,AMI)...目的探讨实时三维斑点追踪超声心动图(real-time three dimensional speckle tracking echocardiography,RT3D-STE)与外泌体微小核糖核酸(micro ribonucleic acid,miRNA)检测在评估早期急性心肌梗死(acute myo⁃cardial infarction,AMI)患者的危险程度中的价值。方法纳入2019年3月至2021年7月深圳市龙华区人民医院40例行冠状动脉造影(coronary arteriongraphy,CAG)的AMI患者,将SYNTAX评分≥23分且“罪犯血管”为近端闭塞者分为高危组,将SYNTAX评分<23分且“罪犯血管”为中远端闭塞者分为低危组,每组20例。患者于CAG后24 h内进行RT3D-STE,分别获取其三维左心室参数:左心室舒张末期容积(left ventricular end diastolic volume,LVEDV)、左心室收缩末期容积(left ventricular end systolic volume,LVESV)、左心室射血分数(left ventricular ejection fraction,LVEF)、心排血量(cardiac output,CO)、球形指数(spherical index,SpI)及左心室质量(left ventricular mass,LVMass),并获取三维左心室整体长轴应变(three-dimensional global long axis strain,3D-GLS)、环周应变(three-dimensional global circumferential strain,3D-GCS)、径向应变(three-dimensional global radial strain,3D-GRS)及面积应变(three-dimensional global area strain,3D-GAS),将其结果与20名健康者进行比较。对20例AMI患者的外周血血清进行外泌体miRNA检测,对显著差异表达的miRNA进行二次测序并定量,分别与CAG分组结果、三维左心室应变参数进行相关分析。结果高危组患者的RT3D-STE参数SpI、CO及LVEF分别为0.32±0.04、(3.19±0.85)L/min和47.77%±2.83%,与低危组、正常组比较,差异有统计学意义(P<0.05)。高危组患者的RT3D-STE左心室参数比低危组及正常组明显降低,差异有统计学意义(P<0.05)。3D-GLS和3D-GAS诊断高危组的敏感度最高。以3D-GLS=-9.31%为临界值,3D-GLS诊断高危组的敏感度为80%,特异度为90%;精细分析显示3D-GLS、3D-GAS、3D-GCS及3D-GRS均能够区分高危组与低危组。miRNA-3681-5p及miRNA-152-5p与3D-GLS、3D-GAS及3D-GCS呈负相关,与3D-GRS呈正相关。使用实时定量聚合酶链反应(quantitative real time polymerase chain reaction,qRT-PCR)对miR-3681-5p及miR-152-5p进行验证,单个miRNA-3681-5p及miRNA-152-5p即可完全区分高危组与低危组(P<0.01)。结论本研究应用RT3D-STE和miRNA评估AMI的结果,可能对AMI早期危险分层有一定指导作用。高危患者异常的超声参数(SpI、CO、LVEF、3D-GLS和3D-GAS)有可能作为AMI患者经皮冠状动脉介入治疗后随访主要不良心血管事件或者生存率相关的评估指标。展开更多
Based on the theory of spatial econometrics,we test and process the urban and rural construction land data during the base period of planning and late period of planning in Bijie City.And we conduct comparative analys...Based on the theory of spatial econometrics,we test and process the urban and rural construction land data during the base period of planning and late period of planning in Bijie City.And we conduct comparative analysis of the spatial pattern and evolution characteristics of urban and rural construction land in 41 towns of Bijie City before and after the planning.According to Getis-ord G i coefficient test results,the cold spot area of urban and rural construction land in northeast of Bijie City will gradually disappear,and the key point of hot spot area will be gradually transferred from the central region to the central and eastern regions.The results show that under the guidance of the overall land use planning in Bijie City,the urban and rural construction land will show strong spatial autocorrelation;agglomeration benefits and scale merit will appear clearly,in line with the actual situation of current development of Bijie City.展开更多
文摘目的探讨实时三维斑点追踪超声心动图(real-time three dimensional speckle tracking echocardiography,RT3D-STE)与外泌体微小核糖核酸(micro ribonucleic acid,miRNA)检测在评估早期急性心肌梗死(acute myo⁃cardial infarction,AMI)患者的危险程度中的价值。方法纳入2019年3月至2021年7月深圳市龙华区人民医院40例行冠状动脉造影(coronary arteriongraphy,CAG)的AMI患者,将SYNTAX评分≥23分且“罪犯血管”为近端闭塞者分为高危组,将SYNTAX评分<23分且“罪犯血管”为中远端闭塞者分为低危组,每组20例。患者于CAG后24 h内进行RT3D-STE,分别获取其三维左心室参数:左心室舒张末期容积(left ventricular end diastolic volume,LVEDV)、左心室收缩末期容积(left ventricular end systolic volume,LVESV)、左心室射血分数(left ventricular ejection fraction,LVEF)、心排血量(cardiac output,CO)、球形指数(spherical index,SpI)及左心室质量(left ventricular mass,LVMass),并获取三维左心室整体长轴应变(three-dimensional global long axis strain,3D-GLS)、环周应变(three-dimensional global circumferential strain,3D-GCS)、径向应变(three-dimensional global radial strain,3D-GRS)及面积应变(three-dimensional global area strain,3D-GAS),将其结果与20名健康者进行比较。对20例AMI患者的外周血血清进行外泌体miRNA检测,对显著差异表达的miRNA进行二次测序并定量,分别与CAG分组结果、三维左心室应变参数进行相关分析。结果高危组患者的RT3D-STE参数SpI、CO及LVEF分别为0.32±0.04、(3.19±0.85)L/min和47.77%±2.83%,与低危组、正常组比较,差异有统计学意义(P<0.05)。高危组患者的RT3D-STE左心室参数比低危组及正常组明显降低,差异有统计学意义(P<0.05)。3D-GLS和3D-GAS诊断高危组的敏感度最高。以3D-GLS=-9.31%为临界值,3D-GLS诊断高危组的敏感度为80%,特异度为90%;精细分析显示3D-GLS、3D-GAS、3D-GCS及3D-GRS均能够区分高危组与低危组。miRNA-3681-5p及miRNA-152-5p与3D-GLS、3D-GAS及3D-GCS呈负相关,与3D-GRS呈正相关。使用实时定量聚合酶链反应(quantitative real time polymerase chain reaction,qRT-PCR)对miR-3681-5p及miR-152-5p进行验证,单个miRNA-3681-5p及miRNA-152-5p即可完全区分高危组与低危组(P<0.01)。结论本研究应用RT3D-STE和miRNA评估AMI的结果,可能对AMI早期危险分层有一定指导作用。高危患者异常的超声参数(SpI、CO、LVEF、3D-GLS和3D-GAS)有可能作为AMI患者经皮冠状动脉介入治疗后随访主要不良心血管事件或者生存率相关的评估指标。
基金Supported by Revision Project of Overall Land Use Planning in Bijie City (2009XY1015)Graphics Library Building Project in the Bijie Area (20120221)
文摘Based on the theory of spatial econometrics,we test and process the urban and rural construction land data during the base period of planning and late period of planning in Bijie City.And we conduct comparative analysis of the spatial pattern and evolution characteristics of urban and rural construction land in 41 towns of Bijie City before and after the planning.According to Getis-ord G i coefficient test results,the cold spot area of urban and rural construction land in northeast of Bijie City will gradually disappear,and the key point of hot spot area will be gradually transferred from the central region to the central and eastern regions.The results show that under the guidance of the overall land use planning in Bijie City,the urban and rural construction land will show strong spatial autocorrelation;agglomeration benefits and scale merit will appear clearly,in line with the actual situation of current development of Bijie City.
