A case of autoimmune hepatitis with a high titer of antimitochondrial antibody and normal γ-globulinemia

Minoru Shibata, Toshio Morizane, Atsushi Tanaka, Yasushi Onozuka, Toshikazu Uchida, M. Eric Gershwin, Keiji Mitamura

Research output: Contribution to journalArticle

5 Scopus citations


We report here a patient with chronic active hepatitis who had no markers for hepatitis viruses and no hyper-γ-globulinemia, but had high titers of antimitochondrial antibody. Serum levels of alkaline phosphatase were normal, and antinuclear antibody, antismooth muscle antibody, and antiliver kidney microsome antibody tested negative. The titers of antimitochondrial antibody exceeded 1:640, and the positivity for anti-M2 was ascertained by using both ELISA and immunoblot with beef-heart mitochondria and a recombinant pyruvate dehydrogenase E2 subunit as antigens. This patient responded to ursodeoxycholic acid (UDCA) therapy in the beginning, but her hepatitis flared up during UDCA therapy. In contrast, she responded completely to corticosteroid therapy. The clinical course and histological findings of this patient strongly suggest that this patient has autoimmune hepatitis.

Original languageEnglish (US)
Pages (from-to)830-835
Number of pages6
JournalJournal of Gastroenterology and Hepatology (Australia)
Issue number7
StatePublished - 2001
Externally publishedYes



  • Antimitochondrial antibody
  • Antinuclear antibody
  • Autoimmune hepatitis
  • Primary biliary cirrhosis

ASJC Scopus subject areas

  • Gastroenterology
  • Hepatology

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