目的:探究新型炎性标志物纤维蛋白原/白蛋白比值(fibrinogen to albumin ratio, FAR)对多支冠状动脉慢性完全闭塞病变(multivessel-chronic total occlusion, MVCTO)的预测价值。方法:回顾性分析2020年01月至2021年12月青岛大学附属烟...目的:探究新型炎性标志物纤维蛋白原/白蛋白比值(fibrinogen to albumin ratio, FAR)对多支冠状动脉慢性完全闭塞病变(multivessel-chronic total occlusion, MVCTO)的预测价值。方法:回顾性分析2020年01月至2021年12月青岛大学附属烟台毓璜顶医院心血管内科收治的137例CTO患者的临床资料,根据冠脉造影结果分为单支闭塞病变组(61例),多支(双支及以上)闭塞病变组(76例),采用单因素及多因素logistic回归分析,探究MVCTO的独立预测因子,采用ROC曲线分析其预测价值。结果:FAR值升高(OR = 4.237, 95% CI: 2.341~7.668, P < 0.001)及血尿酸升高(OR = 1.007, 95% CI: 1.002~1.012, P = 0.010)是MVCTO的独立预测因子,FAR最佳诊断截值为0.0773,敏感性为82.9%,特异性为68.9%;血尿酸最佳诊断截值为329.5 mmol/L,敏感性为68.4%,特异性为73.8%。结论:FAR对MVCTO病变具有较好的预测价值,对识别高危CTO患者、制定个体化诊疗方案具有指导意义。展开更多
This study examined the change of p16^INK4a and PNCA protein expression in myocardium after injection of hIGF-1 gene modified skeletal myoblasts into post-infarction rats. HIGF-1 gene modified skeletal myoblasts （hIG...This study examined the change of p16^INK4a and PNCA protein expression in myocardium after injection of hIGF-1 gene modified skeletal myoblasts into post-infarction rats. HIGF-1 gene modified skeletal myoblasts （hIGF-1-myoblasts） were injected into hind limb muscles of 18 post-infraction rats （experimental group）. Primary-myoblasts were injected into 18 post-infraction rats （control group） and 12 non-infarction rats （sham group）. Expression of p16INK4a and PCNA pro- tein in myocardiums were separately detected immunocytochemically 1, 2 and 4 weeks after the inuection. The level of hIGF-1 and rIGF-1 protein in serum and myocardium were detected by en- zyme-linked immunosorbent assay （ELISA）. Compared with the sham group, the percentage of p^16INK4a and PCNA positive cells reached a peak after 1 week in the control group and the experimental group （P〈0.01）. Moreover, the percentage of p16^INK4a-positive cells in the experimental group was lower than in control group whereas the percentage of PCNA-positive cells was lower in the control group than in the experimental group （P〈0.01）. The percentage of p16^INK4a-positive cells in the experimental group and the percentage of PCNA-positive cells in the control group were close to that in the sham group from the 2nd week （P〉0.05）. ELISA analysis disclosed that the myocardium level of rIGF-1 protein increased gradually in the controls and especially in the experimental group （P〈0.01）. The serum level of rIGF-1 decreased significantly in post-infraction rats, but these conditions were improved in the experimental group （P〈0.01）. The hIGF-1 protein in serum and myocar- dium were detected from the 1st week to the 4th week in the experimental group. Statistical analysis revealed significant associations of myocardium level of hIGF-1 protein with expression of p^16INK4a and PCNA protein （r=–0.323, P〈0.05; r=0.647, P〈0.01）. It is concluded that genetically hIGF-1-myoblast provides a means for constant synthesis and release of hIGF-1. It could not only improve the expression of rIGF-1 and PCNA protein in myocardium, but also suppress the expression of p16^INK4a protein for 30 days in post-infraction rats. Myoblasts-mediated IGF-1 gene therapy may provide a new alternative for the clinical treatment of heart failure.展开更多
文摘目的:探究新型炎性标志物纤维蛋白原/白蛋白比值(fibrinogen to albumin ratio, FAR)对多支冠状动脉慢性完全闭塞病变(multivessel-chronic total occlusion, MVCTO)的预测价值。方法:回顾性分析2020年01月至2021年12月青岛大学附属烟台毓璜顶医院心血管内科收治的137例CTO患者的临床资料,根据冠脉造影结果分为单支闭塞病变组(61例),多支(双支及以上)闭塞病变组(76例),采用单因素及多因素logistic回归分析,探究MVCTO的独立预测因子,采用ROC曲线分析其预测价值。结果:FAR值升高(OR = 4.237, 95% CI: 2.341~7.668, P < 0.001)及血尿酸升高(OR = 1.007, 95% CI: 1.002~1.012, P = 0.010)是MVCTO的独立预测因子,FAR最佳诊断截值为0.0773,敏感性为82.9%,特异性为68.9%;血尿酸最佳诊断截值为329.5 mmol/L,敏感性为68.4%,特异性为73.8%。结论:FAR对MVCTO病变具有较好的预测价值,对识别高危CTO患者、制定个体化诊疗方案具有指导意义。
基金the National Natural Sciences Foundation of China (No. 30470457)
文摘This study examined the change of p16^INK4a and PNCA protein expression in myocardium after injection of hIGF-1 gene modified skeletal myoblasts into post-infarction rats. HIGF-1 gene modified skeletal myoblasts （hIGF-1-myoblasts） were injected into hind limb muscles of 18 post-infraction rats （experimental group）. Primary-myoblasts were injected into 18 post-infraction rats （control group） and 12 non-infarction rats （sham group）. Expression of p16INK4a and PCNA pro- tein in myocardiums were separately detected immunocytochemically 1, 2 and 4 weeks after the inuection. The level of hIGF-1 and rIGF-1 protein in serum and myocardium were detected by en- zyme-linked immunosorbent assay （ELISA）. Compared with the sham group, the percentage of p^16INK4a and PCNA positive cells reached a peak after 1 week in the control group and the experimental group （P〈0.01）. Moreover, the percentage of p16^INK4a-positive cells in the experimental group was lower than in control group whereas the percentage of PCNA-positive cells was lower in the control group than in the experimental group （P〈0.01）. The percentage of p16^INK4a-positive cells in the experimental group and the percentage of PCNA-positive cells in the control group were close to that in the sham group from the 2nd week （P〉0.05）. ELISA analysis disclosed that the myocardium level of rIGF-1 protein increased gradually in the controls and especially in the experimental group （P〈0.01）. The serum level of rIGF-1 decreased significantly in post-infraction rats, but these conditions were improved in the experimental group （P〈0.01）. The hIGF-1 protein in serum and myocar- dium were detected from the 1st week to the 4th week in the experimental group. Statistical analysis revealed significant associations of myocardium level of hIGF-1 protein with expression of p^16INK4a and PCNA protein （r=–0.323, P〈0.05; r=0.647, P〈0.01）. It is concluded that genetically hIGF-1-myoblast provides a means for constant synthesis and release of hIGF-1. It could not only improve the expression of rIGF-1 and PCNA protein in myocardium, but also suppress the expression of p16^INK4a protein for 30 days in post-infraction rats. Myoblasts-mediated IGF-1 gene therapy may provide a new alternative for the clinical treatment of heart failure.
