Minerva gastroenterologica e dietologica · 1997
[LKM (Liver-Kidney-Microsome) antibodies and hepatitis C virus. Description of a clinical case].
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Durazzo M, Biava M A, Scaglione L, Laget M, Smedile A, Pagano G, Rizzetto M
Аннотация
BACKGROUND: Diagnostic and therapeutic issues related to hepatitis C virus infection and autoimmune hepatitis are discussed. The authors report a 56 year old female patient with chronic hepatitis and both HCV-RNA positivity and a high titer of LKM-1 antibody on blood samples.
METHODS: In the absence of clinical signs of autoimmunity the patient was started on interferon treatment. After four months she experienced a flare-up with a sharp increase of transaminases and a concomitant rise in LKM-1 titer. Viremia was persistently detected by PCR. As interferon therapy was discontinued transaminases and autoantibody titer fell to baseline values. A few months later she received immunosuppressive therapy, that resulted in a decrease in LKM1 titer and complete normalization of liver enzymes. Anti LKM-1 antibody was detected by indirect immunofluorescence, serum immunoblot assay (Western Blot), and enzyme immunoassay (ELISA).
RESULTS AND CONCLUSIONS: Therapy of patients with HCV/LKM positive chronic hepatitis should be settled on an individual basis. Patients eligible for interferon treatment should be carefully selected and closely monitored because of the risk of adverse reaction.
METHODS: In the absence of clinical signs of autoimmunity the patient was started on interferon treatment. After four months she experienced a flare-up with a sharp increase of transaminases and a concomitant rise in LKM-1 titer. Viremia was persistently detected by PCR. As interferon therapy was discontinued transaminases and autoantibody titer fell to baseline values. A few months later she received immunosuppressive therapy, that resulted in a decrease in LKM1 titer and complete normalization of liver enzymes. Anti LKM-1 antibody was detected by indirect immunofluorescence, serum immunoblot assay (Western Blot), and enzyme immunoassay (ELISA).
RESULTS AND CONCLUSIONS: Therapy of patients with HCV/LKM positive chronic hepatitis should be settled on an individual basis. Patients eligible for interferon treatment should be carefully selected and closely monitored because of the risk of adverse reaction.