1、590检验医学 2023 年 6 月第 38 卷第 6 期 Laboratory Medicine,June 2023,Vol.38,No.6 作者简介:刘灿,女,1993年生,硕士,检验师,主要从事自身免疫性疾病研究。引用本文:刘灿,罗伶俐,付敏.ASO阳性HSPN患儿NLR、PLR、MPR和免疫球蛋白检测的临床价值J.检验医学,2023,38(6):590-593.ASO 阳性 HSPN 患儿 NLR、PLR、MPR 和免疫球蛋白检测的临床价值刘灿罗伶俐付敏(湖南省儿童医院检验中心,湖南 长沙 410000)摘要:目的探讨中性粒细胞/淋巴细胞比值(NLR)、血小板/淋巴细胞比值(PLR)、
2、平均血小板体积/血小板比值(MPR)和免疫球蛋白在抗链球菌溶血素O(ASO)阳性过敏性紫癜性肾炎(HSPN)患儿中的临床价值。方法 选取2020年1月2021年1月湖南省儿童医院收治的110例过敏性紫癜(HSP)患儿。根据抗链球菌溶血素O(ASO)是否阳性分为ASO组(46例)和未感染组(64例)。根据有无肾脏病变将ASO组细分为ASO-HSPN组(28例)和ASO-HSP组(18例)。以同期湖南省儿童医院体检健康儿童98名作为正常对照组。检测所有研究对象的血常规和IgA、IgG、IgM水平,计算NLR、PLR、MPR。采用二元Logistic回归分析评估ASO阳性HSP患儿发生HSPN的危险
3、因素。采用受试者工作特征(ROC)曲线评价各项指标诊断ASO阳性HSPN的价值。结果ASO组、未感染组IgA、IgG、IgM、NLR均显著高于正常对照组(P0.001)。未感染组MPR、PLR与正常对照组比较,差异有统计学意义(P0.01)。与未感染组比较,ASO组IgA、IgG、IgM升高(P0.05)。ASO-HSPN组MPR高于ASO-HSP组(P=0.002),其他指标2个组之间差异均无统计学意义(P0.05)。二元Logistic回归分析结果显示,MPR是ASO阳性HSP患儿发生HSPN的危险因素比值比(OR)值=3.142,95%可信区间(CI)为1.4148.657,P=0.02
4、7。ROC曲线分析结果显示,MPR诊断ASO阳性HSPN的曲线下面积为0.780,最佳临界值为0.032,敏感性为64.3%,特异性为88.9%。结论HSP合并链球菌感染会导致患儿更严重的体液免疫功能紊乱,MPR在ASO阳性HSPN的辅助诊断中有一定的价值。关键词:中性粒细胞/淋巴细胞比值;血小板/淋巴细胞比值;平均血小板体积/血小板比值;免疫球蛋白;过敏性紫癜;过敏性紫癜性肾炎Clinical roles of NLR,PLR,MPR and immunoglobulin determination in ASO-positive HSPN children LIU Can,LUO Ling
5、li,FU Min.(Department of Clinical Laboratory,Hunan Childrens Hospital,Changsha 410000,Hunan,China)Abstract:Objective To investigate the clinical roles of neutrophil-to-lymphocyte ratio(NLR),platelet-to-lymphocyte ratio(PLR),mean platelet volume-to-platelet ratio(MPR)and immunoglobulins in children w
6、ith anti-streptolysin O(ASO)-positive Henoch-Schnlein purpura nephritis(HSPN).Methods Totally,110 children with Henoch-Schnlein purpura(HSP)were enrolled from Hunan Childrens Hospital from January 2020 to January 2021 and classified into ASO group(46 cases)and uninfected group(64 cases)according to
7、whether they were positive for ASO,and the ASO group was further classified into ASO-HSPN group(28 cases)and ASO-HSP group(18 cases)according to the presence or absence of renal lesions.Totally,98 healthy children from Hunan Childrens Hospital were enrolled as healthy control group.Blood routine tes
8、t was performed,IgA,IgG and IgM levels were determined,and NLR,PLR and MPR were calculated.Binary Logistic regression analysis was used to assess the risk factors for the development of HSPN in children with ASO-positive HSP.Receiver operating characteristic(ROC)curve was used to evaluate the value
9、of each index for the diagnosis of ASO-positive HSPN.Results IgA,IgG,IgM and NLR in ASO group and uninfected group were higher than those in healthy control group(P0.001).There was statistical significance for MPR and PLR between uninfected group and healthy control group(P0.01).Compared with uninfe
10、cted group,IgA,IgG and IgM in ASO group were increased(P0.05)。本研究经湖南省儿童医院伦理委员会批准(HCHLL-2023-79),所有研究对象直系亲属均知情同意。1.2方法收集所有研究对象年龄、性别、感染情况、累及的器官或组织等一般资料。采用XS-500i全自动血液分析仪和配套试剂(日本Sysmex公司)检测血常规,计算中性粒细胞/淋巴细胞比值(neutrophil-to-lymphocyte ratio,NLR)、血小板/淋巴细胞比值(platelet-to-lymphocyte ratio,PLR)、平均血小板体积/血小板比值(
11、mean platelet volume-to-platelet ratio,MPR)。采用IMMAGE 800全自动特定蛋白分析仪(美国贝克曼库尔特公司)和配套试剂(免疫比浊法)检测IgA、IgG、IgM水平。1.3统计学方法 采用SPSS 21.0软件进行统计分析。呈正态分布的计量资料以xs表示,2个组之间比较采用t检验,多组间比较采用方差分析,两两比较采用LSD-t检验。计数资料以例或率表示,组间比较采用2检验。采用二元Logistic回归分析评估ASO阳性HSP患儿发生HSPN的危险因素。采用受试者工作特征(receiver operating characteristic,ROC)曲
12、线评价各项指标诊断ASO阳性HSPN的价值。以P0.05为差异有统计学意义。2结果2.1ASO组、未感染组和正常对照组各项指标比较ASO组、未感染组IgA、IgG、IgM、NLR均显著高于正常对照组(P0.05).MPR in ASO-HSPN group was higher than that in ASO-HSP group(P=0.002),and the differences in the other indicators were not statistically significant between the 2 groups(P0.05).Binary Logistic r
13、egression analysis showed that MPR was a risk factor for the development of HSPN in children with ASO-positive HSP odds ratio(OR)=3.142,95%confidence interval(CI)1.414-8.657,P=0.027.The results of ROC curve analysis showed that the area under curve of MPR for the diagnosis of ASO-positive HSPN was 0
14、.780,with an optimal cut-off value of 0.032.The sensitivity was 64.3%,and the specificity was 88.9%.Conclusions HSP combined with streptococcal infection can lead to severe humoral immune dysfunction.MPR has some value in the ancillary diagnosis of ASO-positive HSPN.Key words:Neutrophil-to-lymphocyt
15、e ratio;Platelet-to-lymphocyte ratio;Mean platelet volume-to-platelet ratio;Immunoglobulin;Henoch-Schnlein purpura;Henoch-Schnlein purpura nephritis过敏性紫癜(Henoch-Schnlein purpura,HSP)是儿童最常见的血管炎,发病率约为0.0030.0271。HSP患儿主要的临床表现为非血小板减少性紫癜、腹痛、关节肿痛、肾炎。紫癜性肾炎是HSP最严重的并发症,治疗不当可严重影响患儿预后。HSP发病机制复杂,目前临床主要认为HSP是由免疫
16、应答机制介导的血管炎,而诱发免疫应答的主要原因为感染。A组乙型溶血性链球菌感染是最常见的引起HSP的病原体2。A组乙型溶血性链球菌广泛存在于自然界,可引起机体发生化脓性感染。而感染诱发的自身免疫反应常继发肾小球肾炎,链球菌感染引起的HSP可能会严重影响肾脏功能,因此寻找可预测HSP患儿肾脏损伤的敏感指标尤为重要。本研究拟分析溶血性链球菌感染引起的HSP患儿各项指标的变化,以寻找能辅助诊断过敏性紫癜性肾炎(Henoch-Schnlein purpura nephritis,HSPN)的指标。1 材料和方法1.1 研究对象选取2020年1月2021年1月湖南省儿童医院收治的HSP患儿110例,其中男82例、女28例,年龄(8.792.70)岁,均符合欧洲抗风湿病联盟(European League Against Rheumatism,EULAR)/儿科风湿病欧洲学会(Paediatric Rheumatology European Society,PRES)发布的诊断标准3。根据抗链球菌溶血素O(anti-streptolysin O,ASO)是否阳性分为ASO组46例,其中男32例、女