Stroke, IL-1ra, IL1RN, Infection and Outcome

被引:24
作者
Becker, Kyra J. [1 ]
Dankwa, Dorender [1 ]
Lee, Richard [1 ]
Schulze, Juliane [2 ]
Zierath, Dannielle [1 ]
Tanzi, Patricia [1 ]
Cain, Kevin [3 ]
Dressel, Alexander [2 ]
Shibata, Dean [4 ]
Weinstein, Jonathan [1 ]
机构
[1] Univ Washington, Sch Med, Dept Neurol, Seattle, WA 98104 USA
[2] Ernst Moritz Arndt Univ Greifswald, Dept Neurol, Greifswald, Germany
[3] Univ Washington, Sch Med, Dept Biostat, Seattle, WA 98104 USA
[4] Univ Washington, Sch Med, Dept Radiol, Seattle, WA 98104 USA
关键词
IL-1ra; IL1RN; Stroke; Infection; Outcome; INTERLEUKIN-1 RECEPTOR ANTAGONIST; ISCHEMIC-STROKE; ULCERATIVE-COLITIS; GENE POLYMORPHISM; ALLELE; INFLAMMATION; METAANALYSIS; RISK; EFFICACY; PHASE;
D O I
10.1007/s12028-013-9899-x
中图分类号
R4 [临床医学];
学科分类号
1002 ; 100602 ;
摘要
Infection is a common phenomenon following stroke, and adversely affects outcome. Previous studies suggest that interleukin-1 receptor antagonist (IL-1ra) and single nucleotide polymorphisms (SNPs) in the IL1RN gene might influence the risk of post-stroke infection and outcome. In this study, we addressed the effects of the rs4251961 SNP in IL1RN on infection risk and outcome. Subjects with acute ischemic stroke were enrolled within 72 h of symptom onset and followed up to 1 year. Plasma IL-1ra was measured at multiple time points and outcome assessed at 1, 3, 6, and 12 months. Active surveillance for infection occurred while subjects were hospitalized. Subjects were genotyped for the IL1RN rs4251961 polymorphism. In the population of 113 subjects for this study, those with the minor C allele of rs4251961 polymorphism in IL1RN were more likely to be Caucasian, hypertensive, and to be afflicted with coronary heart disease. Higher plasma IL-1ra was associated with an increased risk of infection (other than pneumonia), and the minor C allele of rs4251961 was independently associated with a decreased risk of infection (other than pneumonia). Initial plasma IL-1ra was not predictive of long-term outcome, but patients with the minor C allele of rs4251961 were more likely to experience good (modified Rankin Score < 2) long-term outcome. These data indicate that IL-1ra and IL1RN may influence the risk of infection after stroke, but this influence seems limited to infections other than pneumonia. Further studies are needed to better understand the complexities of immune regulation on infection and outcome after stroke.
引用
收藏
页码:140 / 146
页数:7
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