临床荟萃

• 论著 • 上一篇    下一篇

老年特发性膜性肾病患者血清抗PLA2R抗体及IgG亚型检测的临床意义

  

  1. 1.河北大学附属医院 肾内科,河北  保定 071000;2.河北大学,河北 保定 071000
  • 出版日期:2018-10-05 发布日期:2018-11-12
  • 通讯作者: 通信作者: 张海松,Email: hdfyzhs1665@sina.com
  • 基金资助:
    2015年政府资助省级临床医学优秀人才项目

Clinical significance of serum antiPLA2R antibody test and IgG subclass test in elderly patients with idiopathic membranous nephropathy

  1. 1.Department of  Nephrology, the Affiliated Hospital of Hebei University,  Baoding 071000, China;
    2. Hebei University, Baoding 071000, China
  • Online:2018-10-05 Published:2018-11-12
  • Contact: Corresponding author: Zhang Haisong, Email: hdfyzhs1665@sina.com

摘要: 目的 探讨老年特发性膜性肾病(IMN)患者血清抗PLA2R抗体及IgG亚型检测的临床意义。 方法 收集临床表现为肾病综合征并经肾穿病理检查证实为IMN(46例)及继发性膜性肾病(46例)、不典型膜性肾病(46例)老年患者血清及肾脏病理标本。检测血清各生化指标及尿蛋白定量,间接免疫荧光检测血清PLA2RAB及IgG亚型表达水平,免疫荧光方法检测肾脏病理的PLA2R及IgG亚型的表达分布情况。分析IMN及继发性膜性肾病老年患者血清抗PLA2R抗体检测及IgG亚型水平,及其在肾小球及IgG亚型分布方面差异。结果 血清抗PLA2R抗体诊断IMN的敏感度和特异度分别是77.4%和89.9%;肾小球PLA2R诊断IMN的敏感度和特异度分别是66.5%和94.8%。肾小球IgG14诊断IMN的敏感度和特异度分别是80.6%、60.2%、42.0%、93.8%和78.5%、83.6%、84.6%、89.7%。结论 联合检测老年患者血清抗PLA2R抗体及IgG亚型表达分布有助于提高IMN、继发性膜性肾病及不典型膜性肾病的鉴别,指导临床治疗及其预后评估。

关键词: 膜性肾病, 磷脂酶 A2 受体, IgG亚型

Abstract: Objective  To explore  clinical significance of serum antiPLA2R antibody test and IgG subclass test in elderly patients with idiopathic membranous nephropathy(IMN).Methods  Clinical manifestations of nephrotic syndrome were collected and confirmed as IMN (46 cases), secondary membranous nephropathy (46 cases) and atypical membranous nephropathy (46 cases).Serum biochemical indicators and urine protein quantification were detected.  Serum PLA2RAB and IgG subclasss were detected by indirect immunofluorescence, and the expression distribution of PLA2R and IgG subclasss in renal pathology was detected by immunofluorescence method. The serum antiPLA2R antibody test and IgG subclass level were analyzed in elderly patients with IMN and secondary membranous nephropathy, and the differences in the distribution of glomeruli and IgG subclasss.Results  The sensitivity and specificity of serum antiPLA2R antibody for IMN diagnosis were 77.4% and 89.9%, respectively.The sensitivity and specificity of the glomerular PLA2R diagnostic IMN were 66.5% and 94.8%, respectively,  those of the glomerular igg14 diagnostic IMN were 80.6%,  60.2%, 42.0%, 93.8% and 78.5%, 83.6%,84.6% and 89.7%.Conclusion  Combined detection of antiPLA2R antibody and IgG subclass expression  in elderly patients is helpful to improve the differentiation of  IMN and secondary membranous  nephropathy,  and to guide clinical treatment and prognosis evaluation.

Key words: membranous , nephropathy, phospholipase A2 receptor, IgG subclass