期刊
AUTOIMMUNITY REVIEWS
卷 7, 期 8, 页码 621-625出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.autrev.2008.06.008
关键词
Autoimmunity; Hepatitis B virus (HBV); Systemic lupus erythematosus (SLE); Multiple sclerosis (MS); Type 1 diabetes (T1D); Rheumatoid arthritis (RA); Sjogren's syndrome (SS); Hepatitis B core antibody (HBcAb)
类别
Background: The etiology of autoimmune diseases is not fully clarified and the mechanisms underlying their initiation and progression are still obscure. It is becoming clear that in a genetic susceptible individual an environmental trigger such as infectious agent in general and viruses in particular could initiate the development of an autoimmune disease. Hepatitis B virus (HBV) is notorious in its association with diverse autoimmune diseases. Therefore, we aimed to determine the presence of hepatitis B core antibody (HBcAb), a seromarker for past or present infection with HBV, in a large number of sera collected from patients with different autoimmune diseases. Methods: A cohort of 675 sera samples of 5 different autoimmune diseases and healthy donors were screened for evidence of a prior infection with HBV. All samples were tested for hepatitis B core antibody (IgG) using the Monolisa anti-HBc PLUS commercial kit (Bio-Rad, Hercules, San Francisco, USA). Results: Lower percentage of HBcAb was found in sera of the autoimmune diseases when compared to normal controls. Fifteen (10.7%) from 140 normal controls were found positive for the presence of HBcAb. Two (2%) out of 98 multiple sclerosis (MS) sera were positive for the presence of HBcAb (OR: 0.17, 95%CI: 0.03-0.77, p=0.01), 3 (2.5%) out of 117 systemic lupus erythematosus(SLE) sera (OR: 0.2, 95%CI: 0.06-0.77,p=0.01),4(4.5%)out of 89 type 1 diabetes (T1D), 5 (6.1%) from 82 Sjogren's syndrome (SS) sera and 12 (8%) from 149 rheumatoid arthritis (RA) sera were positive for the presence of HBcAb. Conclusions: our data divulge an unexpected low percentage of antibodies to HBcAg in patients with SLE, MS and T1D in comparison to healthy matched donors. This finding may raise a protective role to HBV in some autoimmune diseases i.e. hygiene theory. (C) 2008 Elsevier B.V. All rights reserved.
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