检验医学 ›› 2023, Vol. 38 ›› Issue (7): 647-652.DOI: 10.3969/j.issn.1673-8640.2023.07.006

• 论著 • 上一篇    下一篇

肾病综合征患者外周血单核细胞计数与血清抗磷脂酶A2受体抗体水平的相关性

唐晴琴1, 乔龙威2, 尹晶平1, 张胜1, 丰斌1, 梁玉婷1()   

  1. 1.苏州大学附属第一医院临床检测中心,江苏 苏州 215006
    2.南京医科大学附属苏州市立医院生殖与遗传中心,江苏 苏州 215000
  • 收稿日期:2021-11-29 修回日期:2022-09-22 出版日期:2023-07-30 发布日期:2023-09-18
  • 通讯作者: 梁玉婷,E-mail:liangyuting666@126.com
  • 作者简介:唐晴琴,女,1989年生,硕士,主管技师,主要从事自身免疫性疾病相关研究。
  • 基金资助:
    国家自然科学基金项目(81901632);国家自然科学基金项目(82001576)

Correlation of peripheral blood monocyte count and serum anti-phospholipase A2 receptor antibody in patients with nephrotic syndrome

TANG Qingqin1, QIAO Longwei2, YIN Jingping1, ZHANG Sheng1, FENG Bin1, LIANG Yuting1()   

  1. 1. Department of Clinical Laboratory Center,the First Affiliated Hospital of Soochow University,Suzhou 215006,Jiangsu,China
    2. Center for Reproduction and Genetics,Suzhou Hospital Affiliated to Nanjing Medical University,Suzhou 215000,Jiangsu,China
  • Received:2021-11-29 Revised:2022-09-22 Online:2023-07-30 Published:2023-09-18

摘要:

目的 探讨肾病综合征患者血清抗磷脂酶A2受体抗体(PLA2R-Ab)水平的影响因素及其临床意义。方法 选取2019年8月—2021年9月苏州大学附属第一医院确诊为肾病综合征,且首次检测血清PLA2R-Ab阳性的患者108例,收集其临床资料和实验室检测结果(生化、免疫、血常规、血凝等51个项目)。采用线性回归分析评估各项指标与血清PLA2R-Ab水平的关系。根据血清PLA2R-Ab水平将患者分为低水平组(≤60 RU/mL)和高水平组(>60 RU/mL)。采用Logistic回归分析评估高水平PLA2R-Ab的影响因素。结果 线性回归分析结果显示,PLA2R-Ab与肌酸激酶和纤维蛋白原呈正相关(β值分别为0.001、0.057),与血糖、天门冬氨酸氨基转移酶、血钾和单核细胞计数呈负相关(β值分别为-0.084、-0.007、-0.247、-0.662)。按单核细胞计数的四分位数将所有患者分为4组:≤0.35×109/L组(28例)、(0.36~0.45)×109/L组(26例)、(0.46~0.55)×109/L组(27例)和>0.55×109/L组(27例)。4组之间血清PLA2R-Ab水平差异均无统计学意义(P>0.05)。线性回归分析结果显示,调整混杂因素肌酸激酶、血糖、天门冬氨酸氨基转移酶、纤维蛋白原和血钾后,相对于单核细胞计数≤0.35×109/L组,其他3组lgPLA2R-Ab分别降低0.190、0.117、0.281(β值分别为-0.190、-0.117、-0.281,P=0.008),即血清lgPLA2R-Ab水平分别降低1.55、1.31、1.91 RU/mL。多元逐步Logistic回归分析结果显示,肌酸激酶可增加肾病综合征患者血清高水平PLA2R-Ab的发生风险[比值比(OR)=1.012,95%可信区间(CI)为1.003~1.021,P=0.007),单核细胞计数可降低肾病综合征患者血清高水平PLA2R-Ab的发生风险(OR=0.047,95%CI为0.004~0.602,P=0.019)。结论 外周血单核细胞数量与血清PLA2R-Ab水平相关,提示单核细胞可能与膜性肾病的发病有关。

关键词: 磷脂酶A2受体, 单核细胞计数, 肾病综合征, 膜性肾病

Abstract:

Objective To investigate the related factors and clinical role of serum anti-phospholipase A2 receptor antibody(PLA2R-Ab)in patients with nephrotic syndrome. Methods A total of 108 patients for the first time diagnosed with nephrotic syndrome and determined positive for serum PLA2R-Ab in the First Affiliated Hospital of Soochow University from August 2019 to September 2021 were enrolled,and their clinical data and laboratory determination results,including 51 items such as biochemistry,immunity,routine blood test and blood coagulation,were collected. Linear regression analysis was used to analyze the relationship between each index and serum PLA2R-Ab level. According to serum PLA2R-Ab level,the patients were classified into low-level (≤60 RU/mL)group and high-level(>60 RU/mL)group. Logistic regression analysis was used to evaluate the influencing factors of high-level PLA2R-Ab. Results PLA2R-Ab was positively correlated with creatine kinase and fibrinogen(β values were 0.001 and 0.057,respectively),and it was negatively correlated with blood glucose,aspartate aminotransferase,potassium and monocyte count(β values were -0.084,-0.007,-0.247 and -0.662,respectively). According to the quartiles of monocyte count,all the patients were classified into 4 groups,≤0.35×109/L group(28 cases),(0.36-0.45)×109/L group(26 cases),(0.46-0.55)×109/L group(27 cases) and >0.55×109/L group(27 cases). There was no statistical significance in serum PLA2R-Ab levels among the 4 groups(P>0.05). After adjusting confounding factors,such as creatine kinase,blood glucose,aspartate aminotransferase,fibrinogen and potassium,compared with monocyte count ≤0.35×109/L group,lgPLA2R-Ab levels in the other 3 groups were decreased by 0.190,0.117 and 0.281(β values were -0.190,-0.117 and -0.281,P=0.008),and serum lgPLA2R-Ab levels were decreased by 1.55,1.31 and 1.91 RU/mL,respectively. Creatine kinase could increase the risk of high-level PLA2R-Ab [odds ratio(OR)=1.012,95% confidence interval(CI)1.003-1.021,P=0.007],while monocyte count could decrease the risk of serum high-level PLA2R-Ab in patients with nephrotic syndrome(OR=0.047,95%CI 0.004-0.602,P=0.019). Conclusions The correlation between peripheral blood monocyte count and serum PLA2R-Ab suggests that peripheral blood monocyte may be involved in the pathogenesis of nephrotic syndrome,especially membranous nephropathy.

Key words: Phospholipase A2 receptor, Monocyte count, Nephrotic syndrome, Membranous nephropathy

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