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Autoantibody profiles in autoimmune hepatitis and chronic hepatitis C identifies similarities in patients with severe disease 被引量:6

Autoantibody profiles in autoimmune hepatitis and chronic hepatitis C identifies similarities in patients with severe disease
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摘要 To determine how the auto-antibodies (Abs) profiles overlap in chronic hepatitis C infection (CHC) and autoimmune hepatitis (AIH) and correlate to liver disease.METHODSLevels of antinuclear Ab, smooth muscle antibody (SMA) and liver/kidney microsomal-1 (LKM-1) Ab and markers of liver damage were determined in the sera of 50 patients with CHC infection, 20 AIH patients and 20 healthy controls using enzyme linked immunosorbent assay and other immune assays.RESULTSWe found that AIH patients had more severe liver disease as determined by elevation of total IgG, alkaline phosphatase, total serum bilirubin and serum transaminases and significantly higher prevalence of the three non-organ-specific autoantibodies (auto-Abs) than CHC patients. Antinuclear Ab, SMA and LKM-1 Ab were also present in 36% of CHC patients and related to disease severity. CHC cases positive for auto-Abs were directly comparable to AIH in respect of most markers of liver damage and total IgG. These cases had longer disease duration compared with auto-Ab negative cases, but there was no difference in gender, age or viral load. KLM-1<sup>+</sup> Ab CHC cases showed best overlap with AIH.CONCLUSIONAuto-Ab levels in CHC may be important markers of disease severity and positive cases have a disease similar to AIH. Auto-Abs might have a pathogenic role as indicated by elevated markers of liver damage. Future studies will unravel any novel associations between these two diseases, whether genetic or other. AIM To determine how the auto-antibodies(Abs) profiles overlap in chronic hepatitis C infection(CHC) and autoimmune hepatitis(AIH) and correlate to liver disease.METHODS Levels of antinuclear Ab, smooth muscle antibody(SMA) and liver/kidney microsomal-1(LKM-1) Ab and markers of liver damage were determined in the sera of 50 patients with CHC infection, 20 AIH patients and 20 healthy controls using enzyme linked immunosorbent assay and other immune assays. RESULTS We found that AIH patients had more severe liver disease as determined by elevation of total Ig G, alkaline phosphatase, total serum bilirubin and serum transaminases and significantly higher prevalence of the three non-organ-specific autoantibodies(auto-Abs) than CHC patients. Antinuclear Ab, SMA and LKM-1 Ab were also present in 36% of CHC patients and related to disease severity. CHC cases positive for auto-Abs were directly comparable to AIH in respect of most markers of liver damage and total Ig G. These cases had longer disease duration compared with auto-Ab negative cases, but there was no difference in gender, age or viral load. KLM-1+ Ab CHC cases showed best overlap with AIH. CONCLUSION Auto-Ab levels in CHC may be important markers of disease severity and positive cases have a disease similar to AIH. Auto-Abs might have a pathogenic role as indicated by elevated markers of liver damage. Future studies will unravel any novel associations between these two diseases, whether genetic or other.
出处 《World Journal of Gastroenterology》 SCIE CAS 2017年第8期1345-1352,共8页 世界胃肠病学杂志(英文版)
基金 Supported by Bror Hjerpstedts Foundation,Sweden
关键词 AUTOANTIBODY Inflammatory diseases Immune system Hepatitis C virus Smooth muscle antibody Liver/kidney microsomal-1 autoantibody Anti-nuclear antibody 自身抗体;煽动性的疾病;免疫系统;丙肝病毒;弄平肌肉抗体;肝 / 肾 microsomal-1 自身抗体;反原子的抗体
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