Am J Resp Crit Care:MMP-7、呼吸道症状和死亡率之间的相关性分析!

2017-06-02 xing.T MedSci原创

由此可见,血清MMP-7水平可能是社区居住的成年人肺脏中亚临床细胞外基质重塑的定量生物标志物,这可能会易化亚临床ILD的研究。

基质金属蛋白酶7(MMP-7)被证实参与了ILD的病理过程,并可能作为IPF的一种诊断和预后生物标志物。近日,呼吸内科以及重症医学领域权威杂志Am J Resp Crit Care上发表了一篇研究文章,研究人员旨在通过在无呼吸系统症状或疾病的社区居住的成年人样本来评估血清中MMP-7水平与肺功能、呼吸系统症状、肺间质病变(ILA)以及全因死亡率之间的相关性。

研究人员测量了动脉粥样硬化的多民族研究中1227名参与者血清中基础MMP-7水平。并收集了参与者肺活量(n=697)、咳嗽(n=722)和呼吸困难(n=1050)的五年结局数据,并收集了ILA(n=561)和死亡率(n=1227)的十年结局数据。研究人员使用线性、Logistic和Cox回归来控制潜在的混杂因素。

参与者血清MMP-7水平平均±SD为4.3±2.5ng/ml(范围为1.2-24.1ng/ml)。在调整后的模型中,血清MMP-7每增加一个自然对数单位FVC绝对量增加3.7%(95%可信区间为0.9-6.6%),发生劳力性呼吸困难的几率增加1.6倍(95%可信区间为1.3-1.9),发生ILAs的几率增加1.4倍(95%可信区间为1.1-2.1),并且全因死亡率增加2.2倍(95%可信区间为1.9-2.5)。ILA与死亡率趋势之间的相关性在从不吸烟者更为密切(相互作用的P值分别为0.06和0.01)。

由此可见,血清MMP-7水平可能是社区居住的成年人肺脏中亚临床细胞外基质重塑的定量生物标志物,这可能会易化亚临床ILD的研究。

原始出处:


Hilary F Armstrong , et al. Serum Matrix Metalloproteinase-7, Respiratory Symptoms, and Mortality in Community-dwelling Adults: The Multi-Ethnic Study of Atherosclerosis. AM J RESP CRIT CARE 2017. http://www.atsjournals.org/doi/abs/10.1164/rccm.201701-0254OC

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