检验医学 ›› 2020, Vol. 35 ›› Issue (7): 668-672.DOI: 10.3969/j.issn.1673-8640.2020.07.009

• 临床应用研究·论著 • 上一篇    下一篇

血清蛋白电泳识别M蛋白的规则制定及其在健康人群M蛋白筛查中的应用

徐双1, 路瑾2, 赵磊1, 裴林1, 贾玫1, 荣嵘1()   

  1. 1.北京大学人民医院检验科,北京 100044
    2.北京大学血液病研究所,北京 100044
  • 收稿日期:2019-11-11 出版日期:2020-07-30 发布日期:2020-08-04
  • 作者简介:null

    作者简介:徐 双,女,1983年生,学士,主治医师,主要从事为电泳技术在血液系统疾病中的临床应用研究。

  • 基金资助:
    北京大学人民医院研究与发展基金资助项目(RED2019-09)

Rule making of M protein recognition by serum protein electrophoresis and its application in M protein screening among healthy subjects

XU Shuang1, LU Jin2, ZHAO Lei1, PEI Lin1, JIA Mei1, RONG Rong1()   

  1. 1. Department of Clinical Laboratory,Peking University People's Hospital,Beijing 100044,China
    2. Peking University Institute of Hematology,Beijing 100044,China
  • Received:2019-11-11 Online:2020-07-30 Published:2020-08-04

摘要:

目的 建立血清蛋白电泳识别M蛋白的规则并进行验证。探讨该规则在健康人群中筛查M蛋白的价值。方法 参照相关文献,依据M蛋白在血清蛋白电泳中出现的区域制定M蛋白的识别规则。对312例随机临床血清样本进行血清蛋白电泳,依据制定的M蛋白识别规则筛查M蛋白,并通过免疫固定电泳进行验证。收集1 170名健康体检者的血清样本及236例除血液科、肾内科、风湿免疫科、骨肿瘤科、肝病科和老年科外的患者血清样本,分别进行血清蛋白电泳,筛查M蛋白,采用免疫固定电泳对可疑样本进行确证并分型。结果 312例临床样本采用血清蛋白电泳筛选出28例可疑样本(含有M峰或可疑M峰),其中16例(5.12%)经免疫固定电泳确认为M蛋白阳性;血清蛋白电泳漏检1例,漏检率为0.32%。1 170例健康体检者中M蛋白阳性率为2.14%(25/1 170),男性阳性率(2.64%)高于女性(1.82%)。25例M蛋白阳性的健康体检者中,IgG型M蛋白阳性率最高(60%),其次为IgM型(24%)。236例除血液科、肾内科、风湿免疫科、骨肿瘤科、肝病科、老年科外的患者样本中有10例M蛋白血症,阳性率为4.24%。结论 制定的M蛋白识别规则在血清蛋白电泳识别M蛋白中有较大的价值,值得推广应用。

关键词: M蛋白, 识别规则, 血清蛋白电泳, 意义未明的单克隆免疫球蛋白血症

Abstract:

Objective To establish and verify the rule of M protein recognition by serum protein electrophoresis,and to investigate the role of this rule in screening M protein among healthy subjects. Methods According to related literatures,the rule of M protein recognition was established according to the region of M protein in serum protein electrophoresis. Serum protein electrophoresis was carried out in 312 random clinical serum samples. M protein was screened according to the established rule of M protein recognition,which was verified by immunofixation electrophoresis. Serum samples of 1 170 healthy subjects and 236 clinical samples excluding hematology,nephrology,rheumatology and immunology,bone tumor,hepatology and geriatrics were collected. Serum protein electrophoresis was performed on each sample. M protein was screened according to M protein recognition rule. Immunofixation electrophoresis was used to confirm and type suspicious samples. Results In the 312 random clinical serum samples,28 samples,including M peak or suspicious M peak,were screened by serum protein electrophoresis,among which 16(5.12%) samples were confirmed as M protein positive by immunofixation electrophoresis. One case was missed in serum protein electrophoresis,and the missed rate was 0.32%. The positive rate of M protein was 2.14%(25/1 170) in 1 170 healthy subjects. The positive rates of M protein were 2.64% in males and 1.82% in females. The positive rate of M protein in males was higher than that in females. Among the 25 M protein positive samples,the positive rate of IgG type M protein was the highest(60%),followed by IgM type(24%). Among the 236 clinical samples excluding hematology,nephrology,rheumatology and immunology,bone tumor,hepatology and geriatrics,10 cases had M protein,and the positive rate was 4.24%. ConclusionsThe established M protein recognition rule have a value in M protein recognition by serum protein electrophoresis,which is worth to be applied widely.

Key words: M protein, Recognition rule, Serum protein electrophoresis, Monoclonal gammopathy of undetermined significance

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