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Analysis of Antineutrophil Cytoplasm Antibody from 118 730 Patients in Tertiary Hospitals in Jiangxi Province, China

Liming Tan, Anjun Jiao, Juanjuan Chen, Xiaojing Feng, Liuyue Xu, Siqi He, Fuyan Tan, Yongqing Jiang, Heng Luo, Hua Li, Yang Wu, Yongjian Tian, Tingting Zeng, Jianlin Yu, Liping Cao, Jianfeng Zheng, Hui Xu, Ming Wei, Wen Gan, Weihua Peng, Yanming Liu, Jing Hou, Jiangxia Xu, LiHua Shuai, Wenzhi Huang, Junyun Huang, Yan Lin, Jianrong Liu

Department of Clinical Laboratory, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China (mainland)

Med Sci Monit 2017; 23:4312-4320

DOI: 10.12659/MSM.905880

Available online:

Published: 2017-09-07

BACKGROUND: The discovery of antineutrophil cytoplasm antibody (ANCA) makes the early diagnosis of primary vasculitis possible, and also has important guiding significance for the diagnosis and treatment of secondary vasculitis. This study aimed to investigate the clinical significance of ANCA.
MATERIAL AND METHODS: ANCA was detected by indirect immunofluorescence assay (IIF), and anti-myeloperoxidase (MPO) antibody, and anti-proteinase 3 (PR3) antibody were detected by ELISA. The results were analyzed retrospectively.
RESULTS: Among 118 730 patients, a total of 5853 (4.93%) were positive for ANCA. In the positive cases, 3.98% were male and 6.33% were female, with significant differences (χ²=123.38, P<0.01). For ANCA, the department with the highest positive rate (15.06%) was the Department of Rheumatology, followed by 7.78% in the Department of Dermatology, 6.79% in the Department of Nephrology, and 5.72% in the Department of Traditional Chinese Medicine (TCM). Anti-PR3 and cANCA were highly specific in primary vasculitis (P<0.01). Anti-MPO and pANCA had high specificity for other autoimmune diseases (P<0.01).
CONCLUSIONS: ANCA has important guiding significance for vasculitis-related diseases. Therefore, it is important in the diagnosis and treatment of this disease and has value in clinical practice.

Keywords: Antibodies, Antineutrophil Cytoplasmic, Autoimmune Diseases, Vasculitis