北京大学学报(医学版) ›› 2021, Vol. 53 ›› Issue (6): 1083-1087. doi: 10.19723/j.issn.1671-167X.2021.06.013
TIAN Jia-yi,ZHANG Xia(),CHENG Gong,LIU Qing-hong,WANG Shi-yang,HE Jing()
摘要:
目的:探究系统性红斑狼疮(systemic lupus erythematosus,SLE)患者血清中白细胞介素-2受体α(interleukin-2 receptor α,IL-2Rα)水平在临床中的意义。方法:收集2019年1月至2020年12月就诊于北京大学人民医院的107例SLE患者病历资料,依据SLE疾病活动度指数(SLE disease activity index 2000,SLEDAI-2K)评估患者的病情活动情况,并选取年龄、性别分别匹配的39例健康人作为健康对照。采用酶联免疫吸附法测定SLE患者组和健康对照组的血清IL-2Rα水平,比较其差异并分析SLE患者IL-2Rα水平与临床指标及实验室指标的相关性。采用t检验或Mann-Whitney U检验、 χ2检验和Spearman秩相关性分析进行统计学分析。结果:SLE患者血清IL-2Rα水平[830.82(104.2~8 940.48) ng/L]较健康对照组[505.1(78.65~1 711.52) ng/L]明显升高(P<0.001)。相关性分析显示,血清IL-2Rα水平与SLEDAI-2K评分及抗核小体抗体滴度呈正相关(r=0.357,P<0.001;r=0.25,P=0.027)。107例SLE患者中36例(33.6%)合并狼疮性肾炎,合并狼疮性肾炎的患者血清IL-2Rα水平[1 102.14(126.52~8 940.48) ng/L]较未合并狼疮性肾炎患者[743.89(104.19~4 872.06) ng/L]明显升高(P=0.032)。高IL-2Rα水平组合并狼疮性肾炎者(40.8%)较低水平组(19.4%)明显升高(P=0.031),高IL-2Rα水平组SLEDAI-2K评分更高[10 (3~21) vs. 7 (3~16),P=0.001]。SLE患者常规治疗12周后血清IL-2Rα水平[1 119.1(372.25~2 608.86) ng/L]随病情改善较基线时[1 556.73 (373.08~8 940.48) ng/L]明显下降(P=0.042)。结论:血清IL-2Rα可作为SLE病情活动评估指标,与肾脏受累有一定相关性。
中图分类号:
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