J Mol Cell Cardiol:脂多糖反应性是慢性心衰病人死亡的独立预测因子

2015-08-17 phylis 译 MedSci原创

背景:慢性心衰病人的炎症活性的起因仍然存在争议。脂多糖(LPS)通过受损的肠道屏障入血。我们以此提出假设:与正常的或者较高的LPS反应性相比,较低的LPS反应性可能与糟糕生存率相关。方法:122名病人研究慢性心衰的LPS的反应性,24名为女性,年龄67.3±10.3岁,纽约心脏协会分级(NYHA)分级:2.5±0.8。左室射血分数(LVEF):33.5±12.5%。对照组27名病人,年龄为63.7

背景:慢性心衰病人的炎症活性的起因仍然存在争议。脂多糖(LPS)通过受损的肠道屏障入血。我们以此提出假设:与正常的或者较高的LPS反应性相比,较低的LPS反应性可能与糟糕生存率相关。

方法:122名病人研究慢性心衰的LPS的反应性,24名为女性,年龄67.3±10.3岁,纽约心脏协会分级(NYHA)分级:2.5±0.8。左室射血分数(LVEF):33.5±12.5%。对照组27名病人,年龄为63.7±7.7岁,与实验组病人年龄没有显著的统计学差异。LPS以梯度浓度递增入血,测量TNF-α的分泌含量,判断LPS的反应性。根据病人对不同剂量LPS的反应性不同,将病人分为LPS高反应性和低反应性两个不同的亚组。根据ROC曲线计算最优截断值。

结果:在随访中,56名慢性心衰的病人死于各种原因。24个月的累积死亡率为16.4%(95%CV:37.2-61.4%)。用于预测死亡的TNF-α的最优截断值是1522pg/ml,其敏感性为49.3%(95%CV: 37.2-61.4%),特异性为81.5%(95%CV:61.9-93.6%)。多变量校正后,LPS反应状态能独立预测死亡(高低反应组危害比为0.09,95%CV 0.01-0.67),高低反应组间存在统计学差异。

结论:在慢性心衰病人中,LPS反应性是死亡的独立预测因子。

原始出处:

Ebner N, Földes G, Schomburg L, Renko K, Springer J, Jankowska EA, Sharma R, Genth-Zotz S, Doehner W, Anker SD, von Haehling S.Lipopolysaccharide responsiveness is an independent predictor of death in patients with chronic heart failure.J Mol Cell Cardiol. 2015 Aug 8. 


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    2015-10-27 智智灵药
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