Abstract
Abstract Accurate measurement of levels of autoantibodies in serum is critical for the diagnosis of autoimmune hepatitis. The major reactivities include anti‐nuclear antibody (ANA), smooth muscle antibody (SMA), antibody to liver kidney microsomes type‐1 (anti‐LKM1); other relevant reactivities include antibodies to liver cytosol 1 (anti‐LC1), soluble liver antigen (anti‐SLA), and neutrophil cytoplasmic antigens (ANCA). In addition to the classical indirect immunofluorescence technique, automatic assays based on recombinant antigens are now available, which allow detection of antibodies not visible on immunofluorescence, like anti‐SLA, and assist in the interpretation of at times problematic immunofluorescence patterns, like anti‐LKM1 or anti‐LC1.
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