目的:探讨内脂素对冠状动脉粥样硬化(AS)斑块易损性的影响。方法:入选中日友好医院心脏科2016年1月—2017年1月间60例ST段抬高性心肌梗死(STEMI)患者,收集患者外周动脉(桡动脉或股动脉)的血样和本次导致STEMI发生的冠状动脉罪犯病变局...目的:探讨内脂素对冠状动脉粥样硬化(AS)斑块易损性的影响。方法:入选中日友好医院心脏科2016年1月—2017年1月间60例ST段抬高性心肌梗死(STEMI)患者,收集患者外周动脉(桡动脉或股动脉)的血样和本次导致STEMI发生的冠状动脉罪犯病变局部血样,比较外周动脉与冠状动脉罪犯病变局部内脂素及血小板反应蛋白解整合素金属肽酶-4(ADAMTS-4)的表达水平,并对两者的表达水平行相关性分析,进而通过体外细胞试验在mRNA及蛋白水平上观察内脂素对巨噬细胞中ADAMTS-4表达的作用。结果:冠状动脉罪犯病变局部内脂素及ADAMTS-4水平高于外周动脉(内脂素:15.13±6.30ng/ml vs.9.20±4.13ng/ml,P<0.001;ADAMTS-4:101.27±9.56ng/ml vs 74.36±12.43ng/ml,P<0.001),同时,冠状动脉罪犯病变局部内脂素及ADAMTS-4的表达水平成正相关(R2=0.86,P<0.001)。体外实验证实,内脂素呈时间和浓度依赖性地上调ADAMTS-4mRNA及蛋白水平的表达。结论:内脂素通过促进AS斑块内巨噬细胞ADAMTS-4的表达从而导致斑块易损性的增加。展开更多
This paper introduces a four-dimensional （4D） segmented disc dynamo which possesses coexisting hidden attractors with one stable equilibrium or a line equilibrium when parameters vary. In addition, by choosing an ap...This paper introduces a four-dimensional （4D） segmented disc dynamo which possesses coexisting hidden attractors with one stable equilibrium or a line equilibrium when parameters vary. In addition, by choosing an appropriate bifurcation parameter, the paper proves that Hopf bifurcation and pitchfork bifurcation occur in the system. The ultimate bound is also estimated. Some numerical investigations are also exploited to demonstrate and visualize the corresponding theoretical results.展开更多
文摘目的:探讨内脂素对冠状动脉粥样硬化(AS)斑块易损性的影响。方法:入选中日友好医院心脏科2016年1月—2017年1月间60例ST段抬高性心肌梗死(STEMI)患者,收集患者外周动脉(桡动脉或股动脉)的血样和本次导致STEMI发生的冠状动脉罪犯病变局部血样,比较外周动脉与冠状动脉罪犯病变局部内脂素及血小板反应蛋白解整合素金属肽酶-4(ADAMTS-4)的表达水平,并对两者的表达水平行相关性分析,进而通过体外细胞试验在mRNA及蛋白水平上观察内脂素对巨噬细胞中ADAMTS-4表达的作用。结果:冠状动脉罪犯病变局部内脂素及ADAMTS-4水平高于外周动脉(内脂素:15.13±6.30ng/ml vs.9.20±4.13ng/ml,P<0.001;ADAMTS-4:101.27±9.56ng/ml vs 74.36±12.43ng/ml,P<0.001),同时,冠状动脉罪犯病变局部内脂素及ADAMTS-4的表达水平成正相关(R2=0.86,P<0.001)。体外实验证实,内脂素呈时间和浓度依赖性地上调ADAMTS-4mRNA及蛋白水平的表达。结论:内脂素通过促进AS斑块内巨噬细胞ADAMTS-4的表达从而导致斑块易损性的增加。
基金supported by the National Natural Science Foundation of China(Grant No.11671149)
文摘This paper introduces a four-dimensional （4D） segmented disc dynamo which possesses coexisting hidden attractors with one stable equilibrium or a line equilibrium when parameters vary. In addition, by choosing an appropriate bifurcation parameter, the paper proves that Hopf bifurcation and pitchfork bifurcation occur in the system. The ultimate bound is also estimated. Some numerical investigations are also exploited to demonstrate and visualize the corresponding theoretical results.
