实用肝脏病杂志 ›› 2022, Vol. 25 ›› Issue (2): 203-206.doi: 10.3969/j.issn.1672-5069.2022.02.013

• 自身免疫性肝病 • 上一篇    下一篇

体检人群血清M2型抗线粒体抗体流行率调查*

曲颖, 蔡晓波, 张启迪, 陆伦根   

  1. 200080 上海市 上海交通大学附属第一人民医院消化科
  • 收稿日期:2021-06-16 出版日期:2022-03-10 发布日期:2022-03-15
  • 通讯作者: 陆伦根,E-mail:lungenlu1965@163.com
  • 作者简介:曲颖,女,37岁,医学博士,主治医师。主要从事脂肪肝和肝纤维化的基础与临床研究。E-mail: levine4959@163.com
  • 基金资助:
    *国家自然科学基金青年基金资助项目(编号81500463)

Prevalence of serum anti-mitochondrial antibody-M2 antibody in health check-up individuals

Qu Ying, Cai Xiaobo, Zhang Qidi, et al   

  1. Department of Gastroenterology, Shanghai General Hospital, JiaoTong University School of Medicine, Shanghai 200080, China
  • Received:2021-06-16 Online:2022-03-10 Published:2022-03-15

摘要: 目的 在健康体检人群中筛查原发性胆汁性胆管炎(PBC)的特异性抗体,即抗线粒体抗体(AMA)-M2,以了解其流行率。方法 2012年5月~2014年12月我院体检中心血清样本18515例,采用ELISA行AMA-M2定量检测,同时收集肝功能生化指标。结果 在筛查的18515名体检者中,245例(1.3%)血清AMA-M2阳性,男性97名,女性148名,男女比例约为1:1.5,46~55岁年龄段阳性比例率为28.6%;12名AMA-M2阳性者同时伴有血清ALP水平升高,符合中国PBC诊断和治疗共识的诊断标准;54例高滴度AMA-M2抗体(>150U/ml)者血清ALP为(92.8±85.6 U/L),GGT水平为(84.3±118.5 U/L,显著高于191例低滴度组【分别为(67.7±38.3U/L)和(39.1±61.8U/L),P<0.05】。结论 健康体检人群血清AMA-M2抗体阳性并不少见,筛查AMA-M2抗体有助于早期识别PBC。

关键词: 原发性胆汁性胆管炎, 抗线粒体抗体, 筛查, 诊断

Abstract: Objective The purpose of this study was to investigate the prevalence of serum anti-mitochondrial antibody-M2 (AMA-M2) antibody in physical examination individuals. Methods 18515 serum samples were collected from the Physical Examination Center, Shanghai General Hospital between May 2012 and December 2014. Serum AMA-M2 was quantitatively detected by ELISA, and blood biochemical parameters were assayed. Results Among 18515 screened people, 245 persons (1.3%) were serum AMA-M2 positive, of which 97 were men and 148 were women, with the ratio of men to women of about 1∶1.5, and the highest positive rate (28.6%) was found in 46 to 55 year old age group(n=70); serum alkaline phosphatase levels increased in 12 persons with serum AMA-M2 positive, who met the diagnostic criteria of primary biliary cholangitis (PBC); serum ALP level in 54 persons with higher serum AMA-M2 (>150U/ml) was (92.8±85.6 U/L), and serum GGT level was (84.3±118.5 U/L, significantly higher than [(67.7±38.3U/L) and (39.1±61.8U/L), respectively, P<0.05] in 191 individuals with low serum AMA-M2. Conclusion It is not uncommon that serum AMA-M2 antibody is positive in healthy people, and early screening serum AMA-M2 antibody is helpful for early diagnosis of PBC.

Key words: Primary biliary cholangitis, Anti-mitochondrial antibody, Physical examination and screening, Diagnosis