Chest:COPD患者**端粒长度与生活质量、急性发作和死亡率之间的关系

2018-07-16 xing.T MedSci原创

由此可见,这些数据表明复制性衰老可能有助于预测COPD的不良预后。较短的白细胞端粒长度作为临床生物标志物可用于确定COPD临床结局较差风险增加的个体。

COPD是一种与年龄有关的疾病。细胞衰老在COPD中的作用尚未完全阐明。近日,呼吸领域权威杂志chest上发表了一篇研究文章,该研究旨在评估了外周血白细胞端粒长度与临床结局之间的关系,包括COPD患者的健康状况、急性发作率和死亡风险。

研究人员使用定量聚合酶链反应测量了576名中度至重度COPD患者的血液样本中提取的DNA的绝对端粒长度(aTL),这些患者来自于大环内酯类阿奇霉素预防COPD恶化(MACRO)研究,并采用阿奇霉素或安慰剂治疗12个月。所有参与者随访了大约13个月,在此期间研究人员仔细确定了受试者的健康状况和恶化情况,以及29个月的死亡率。研究人员使用中值作为截止值将aTL分成两组,来确定急性发作率和死亡率。

端粒长度较短的参与者健康状况较差,其由较高的圣乔治呼吸问卷评分(β=-0.09,P=0.034)来定义。在该研究的安慰剂组中,较短的端粒组急性发作率(比值比为1.50; 95%CI为1.16-1.95; P=0.002)和死亡风险(风险比为9.45; 95%CI为2.85-31.36; P=0.015)显著高于较长的端粒组;而在阿奇霉素组中未观察到这些差异(对于急性发作的相互作用P=0.008,对于死亡率的相互作用P=0.017)。

由此可见,这些数据表明复制性衰老可能有助于预测COPD的不良预后。较短的白细胞端粒长度作为临床生物标志物可用于确定COPD临床结局较差风险增加的个体。

原始出处:

Minhee Jin,et al. Relationship of Absolute Telomere Length With Quality of Life, Exacerbations, and Mortality in COPD.chest.2018. https://doi.org/10.1016/j.chest.2018.05.022

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    2018-11-29 Smile2680
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    2018-07-18 gous
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    2018-07-16 天地飞扬

    了解一下.谢谢分享!

    0

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