The significance of serum IgG4 and CA19-9, autoantibodies in diagnosis and differential diagnosis of IgG4-related sclerosing cholangitis |
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| Authors: | Liming Tan Xiaolin Guan Tingting Zeng Sifan Wu Wei Zheng Huiying Fu |
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| Affiliation: | 1. Key Laboratory of Laboratory Medicine in Jiangxi Province, Department of the Clinical Laboratory, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China;2. College of Public Health, Nanchang University, Nanchang, Jiangxi, China |
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| Abstract: | Objective: To investigate the value of serum levels of IgG4 and CA19-9, and autoantibodies in the diagnosis of IgG4-related sclerosing cholangitis (IgG4-SC).Methods: We detected the serum IgG4 and CA19-9 of 45 IgG4-SC patients, 173 non-IgG4-SC patients and 48 healthy controls by immunoassay and chemiluminescence, respectively, with antinuclear antibody (ANA), anti-neutrophil antibody (ANCA), anti-smooth muscle antibody (SMA) and anti-mitochondrial antibody (AMA) level detected by indirect immunofluorescence. Then analyze the detection results.Results: (1) The positive rates of ANA, ANCA, SMA and AMA in patients with IgG4-SC were 40%, 6.67%, 0 and 2.22%. Among them, the positive rate of ANA was significantly higher than that of the healthy control group (p?4-SC group (p?4 and CA19-9 increased significantly in patients with IgG4-SC compared with the healthy controls (p?4 and CA19-9 were 0.9750 and 0.6498, respectively (p?Conclusion: The high levels of serum IgG4 and CA19-9, and autoantibodies detections are of great important clinical value in diagnosis and differential diagnosis of IgG4-SC. |
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| Keywords: | IgG4-related sclerosing cholangitis bile duct cancer pancreatic cancer IgG4 CA19-9 autoantibodies |
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