Background Pentraxin 3 （PTX3） is expressed in the heart under inflammatory conditions and plays an important role in atherogenesis. Patients with increased PTX3 levels may suffer from higher rates of cardiac events....Background Pentraxin 3 （PTX3） is expressed in the heart under inflammatory conditions and plays an important role in atherogenesis. Patients with increased PTX3 levels may suffer from higher rates of cardiac events. Regulation of specific genes by promoter methylation is important in atherogenesis. The factors influencing PTX3 levels and the association between epigenetics and PTX3 levels have not been investigated. Methods Blood samples were collected from 64 patients admitted to the Department of Cardiology, 35 who had coronary artery disease （CAD）, and 29 who were CAD-free. Plasma levels of PTX3 were measured by ELISA. PTX3 promoter methylation was evaluated via methyl-specific PCR. The severity of coronary artery lesion was evaluated by angiography. Results The level of PTX3 promoter methylation in the CAD group was 62.69% ± 20.57%, significantly lower than that of the CAD-free group, which was 72.45% ± 11.84% （P = 0.03）. Lower PTX3 promoter methylation levels in the CAD group were associated with higher plasma PTX3 concentrations （r = -0.29, P = 0.02）. Furthermore, lower PTX3 promoter methylation levels were associated with higher neutrophil to lymphocyte ratio （NLR） in men （r = -0.58, P = 0.002）. Conclusions The present study provides new evidence that methylation of the PTX3 promoter is associated with PTX3 plasma levels and NLR in coronary artery disease. This study also shows that modification of epigenetics by chronic inflamma- tion might be a significant molecular mechanism in the atherosclerotic processes that influence plasma PTX3 concentrations.展开更多
目的探讨正五聚蛋白3(pentraxin 3,PTX3)与大血管闭塞型急性缺血性脑卒中(acute ischemic stroke,AIS)患者机械取栓首次通过效应的关系。方法选取2023年1~8月在聊城市人民医院进行治疗的大血管闭塞型AIS患者136例,进行机械取栓根据是否...目的探讨正五聚蛋白3(pentraxin 3,PTX3)与大血管闭塞型急性缺血性脑卒中(acute ischemic stroke,AIS)患者机械取栓首次通过效应的关系。方法选取2023年1~8月在聊城市人民医院进行治疗的大血管闭塞型AIS患者136例,进行机械取栓根据是否获得首次通过效应将其分为首次通过组(n=41)以及未首次通过组(n=95)。收集所有患者的临床资料并检测血清PTX3的水平。对所有患者进行三个月的随访,根据改良Rankin评分判定预后情况。采用多因素Logistic回归法分析大血管闭塞型AIS患者首次通过效应的影响因素,采用受试者工作特征(ROC)曲线分析血清PTX3对大血管闭塞型AIS患者首次通过效应的预测价值。结果首次通过组的预后情况良好率高于未首次通过组(56.10%vs 36.84%),差异具有统计学意义(χ^(2)=4.341,P=0.037)。与未首次通过组相比,首次通过组的年龄(59.38±5.12岁)、高血压比例(43.90%)、入院美国国立卫生研究院卒中量表(national institute of health stroke scale,NIHSS)评分(13.58±4.16分)以及血清PTX3水平(1.21±0.32 ng/L)均低于未首次通过组(63.45±7.61岁,65.26%,15.75±5.13分,1.71±0.41ng/L),差异具有统计学意义(t/χ^(2)=3.129,5.395,2.389,6.944,均P<0.05)。经多因素Logistic回归法分析显示,年龄较小[OR(95%CI):0.859(0.752~0.982)]、无高血压[OR(95%CI):0.672(0.480~0.942)]、入院NIHSS评分下降[OR(95%CI):0.867(0.781~0.962)]以及血清PTX3水平下降[OR(95%CI):0.558(0.326~0.954)]均是大血管闭塞型AIS患者机械取栓首次通过效应的影响因素(Waldχ^(2)值=4.997,5.238,7.280,4.543,均P<0.05)。经过三个月随访,预后良好组的血清PTX3水平低于预后不良组(1.28±0.39 ng/L vs 1.65±0.43 ng/L),差异具有统计学意义(t=5.111,P<0.001)。经ROC分析显示,血清PTX3对大血管闭塞型AIS患者首次通过效应和不良预后的预测价值较高,曲线下面积(95%CI)分别为0.785(0.703~0.866)和0.734(0.651~0.806),最佳临界值分别为1.38 ng/L和1.56 ng/L。结论大血管闭塞型AIS患者机械取栓获得首次通过效应利于短期预后,血清PTX3的表达情况与大血管闭塞型AIS患者首次通过效应密切相关,且该指标对患者能否获得首次通过效应有较高的预测价值。展开更多
文摘Background Pentraxin 3 （PTX3） is expressed in the heart under inflammatory conditions and plays an important role in atherogenesis. Patients with increased PTX3 levels may suffer from higher rates of cardiac events. Regulation of specific genes by promoter methylation is important in atherogenesis. The factors influencing PTX3 levels and the association between epigenetics and PTX3 levels have not been investigated. Methods Blood samples were collected from 64 patients admitted to the Department of Cardiology, 35 who had coronary artery disease （CAD）, and 29 who were CAD-free. Plasma levels of PTX3 were measured by ELISA. PTX3 promoter methylation was evaluated via methyl-specific PCR. The severity of coronary artery lesion was evaluated by angiography. Results The level of PTX3 promoter methylation in the CAD group was 62.69% ± 20.57%, significantly lower than that of the CAD-free group, which was 72.45% ± 11.84% （P = 0.03）. Lower PTX3 promoter methylation levels in the CAD group were associated with higher plasma PTX3 concentrations （r = -0.29, P = 0.02）. Furthermore, lower PTX3 promoter methylation levels were associated with higher neutrophil to lymphocyte ratio （NLR） in men （r = -0.58, P = 0.002）. Conclusions The present study provides new evidence that methylation of the PTX3 promoter is associated with PTX3 plasma levels and NLR in coronary artery disease. This study also shows that modification of epigenetics by chronic inflamma- tion might be a significant molecular mechanism in the atherosclerotic processes that influence plasma PTX3 concentrations.
文摘目的探讨正五聚蛋白3(pentraxin 3,PTX3)与大血管闭塞型急性缺血性脑卒中(acute ischemic stroke,AIS)患者机械取栓首次通过效应的关系。方法选取2023年1~8月在聊城市人民医院进行治疗的大血管闭塞型AIS患者136例,进行机械取栓根据是否获得首次通过效应将其分为首次通过组(n=41)以及未首次通过组(n=95)。收集所有患者的临床资料并检测血清PTX3的水平。对所有患者进行三个月的随访,根据改良Rankin评分判定预后情况。采用多因素Logistic回归法分析大血管闭塞型AIS患者首次通过效应的影响因素,采用受试者工作特征(ROC)曲线分析血清PTX3对大血管闭塞型AIS患者首次通过效应的预测价值。结果首次通过组的预后情况良好率高于未首次通过组(56.10%vs 36.84%),差异具有统计学意义(χ^(2)=4.341,P=0.037)。与未首次通过组相比,首次通过组的年龄(59.38±5.12岁)、高血压比例(43.90%)、入院美国国立卫生研究院卒中量表(national institute of health stroke scale,NIHSS)评分(13.58±4.16分)以及血清PTX3水平(1.21±0.32 ng/L)均低于未首次通过组(63.45±7.61岁,65.26%,15.75±5.13分,1.71±0.41ng/L),差异具有统计学意义(t/χ^(2)=3.129,5.395,2.389,6.944,均P<0.05)。经多因素Logistic回归法分析显示,年龄较小[OR(95%CI):0.859(0.752~0.982)]、无高血压[OR(95%CI):0.672(0.480~0.942)]、入院NIHSS评分下降[OR(95%CI):0.867(0.781~0.962)]以及血清PTX3水平下降[OR(95%CI):0.558(0.326~0.954)]均是大血管闭塞型AIS患者机械取栓首次通过效应的影响因素(Waldχ^(2)值=4.997,5.238,7.280,4.543,均P<0.05)。经过三个月随访,预后良好组的血清PTX3水平低于预后不良组(1.28±0.39 ng/L vs 1.65±0.43 ng/L),差异具有统计学意义(t=5.111,P<0.001)。经ROC分析显示,血清PTX3对大血管闭塞型AIS患者首次通过效应和不良预后的预测价值较高,曲线下面积(95%CI)分别为0.785(0.703~0.866)和0.734(0.651~0.806),最佳临界值分别为1.38 ng/L和1.56 ng/L。结论大血管闭塞型AIS患者机械取栓获得首次通过效应利于短期预后,血清PTX3的表达情况与大血管闭塞型AIS患者首次通过效应密切相关,且该指标对患者能否获得首次通过效应有较高的预测价值。
