Crit Care Med:Olfactomedin-4 +中性粒细胞与脓毒性休克患者的死亡有什么关系?

2016-10-16 MedSci MedSci原创

脓毒症相关病理学中的异质性仍是一个重大的挑战。如果能解决这种异质性,将会让我们更了解相关病理学,同时改善患者的医疗护理。 Olfactomedin-4是中性粒细胞亚群标记物,可能会导致脓毒症的异质性。本研究的目的是,评估感染性休克儿童患者的olfactomedin-4表达情况,以及中性粒细胞的异质性特征。 本研究纳入了单中心、前瞻性队列,对单中心、前瞻性队列进行了二次分析。 研究

脓毒症相关病理学中的异质性仍是一个重大的挑战。如果能解决这种异质性,将会让我们更了解相关病理学,同时改善患者的医疗护理。

Olfactomedin-4是中性粒细胞亚群标记物,可能会导致脓毒症的异质性。本研究的目的是,评估感染性休克儿童患者的olfactomedin-4表达情况,以及中性粒细胞的异质性特征。

本研究纳入了单中心、前瞻性队列,对单中心、前瞻性队列进行了二次分析。

研究纳入了入住PICU的5天到18岁的感染性休克患者,收集了olfactomedin-4信使RNA的表达、血清蛋白浓度及中性粒细胞表达olfactomedin-4的百分比等数据。

现有转录组数据显示,小儿感染性休克死亡患者与辛存者比较,olfactomedin-4是最高度表达的基因。对现有蛋白质组学数据库进行二级分析,证实了这些发现。

在这项前瞻性队列研究中,我们量化了脓毒性休克患者的olfactomedin-4 +中性粒细胞百分比情况。脓毒性休克第7天出现≥2个器官衰竭或28天内死亡的患者,与没有这些情况的患者相比较,olfactomedin-4 +中性粒细胞的比例更高。Logistic回归分析显示,olfactomedin-4 +中性粒细胞百分比是脓毒性休克第7天出现≥2个器官衰竭或28天内死亡风险增加的独立相关因素(比值比,1.09;95% CI,1.01-1.17;P = 0.024)。

结果表明,更高比例的olfactomedin-4 +中性粒细胞,意味着脓毒性休克患者出现器官衰竭或死亡的风险更大。

原始出处:

Alder, Matthew N.et al.Olfactomedin-4 Is a Candidate Marker for a Pathogenic Neutrophil Subset in Septic Shock.Critical Care Medicine.September 15, 2016

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    2017-05-17 gao_jian4217
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