title: Autoimmune hepatitis triggered by statins.
abstract: Although the cause of autoimmune hepatitis (AIH) is unknown, drugs are believed to be potential triggers in some patients. In isolated case reports, statins have been considered such triggers. Here we describe 3 patients in whom it is probable that statins initiated the development of AIH. Two men (aged 47 and 51) and one woman (aged 57) developed AIH after the initiation of statin therapy. They developed positive titers of antinuclear antibodies, antismooth muscle antibodies (1/40 to 1/160), and hypergammaglobulinemia. Features of all 3 patients met the criteria for AIH according to the International Autoimmune Hepatitis Panel. Liver biopsies in all 3 showed varying stages of fibrosis and plasma cell infiltration, compatible with AIH. The woman developed hepatitis due to statins on 2 separate occasions: the first in 1999, due to simvastatin, and the second in 2001 to 2002, due to atorvastatin, which was severe and persisted even after discontinuing medication. Similarly, in the 2 other cases, exposure to statins preceded development of AIH, which persisted despite discontinuing medications. All 3 patients responded well to prednisone and azathioprine or mycophenolate therapy. 3 similar previously reported cases are reviewed. We conclude that the 3 cases reported here and 3 similar previously reported cases, indicate that severe, ongoing AIH on rare occasions can be triggered by statins.
authors.affiliation: Department of Medicine, Indiana University School of Medicine, Indianapolis, IN 46202, USA.
authors.forename: Vamsee
authors.initials: V
authors.lastname: Alla
authors.forename: Joseph
authors.initials: J
authors.lastname: Abraham
authors.forename: Junaid
authors.initials: J
authors.lastname: Siddiqui
authors.forename: Dimple
authors.initials: D
authors.lastname: Raina
authors.forename: George Y
authors.initials: GY
authors.lastname: Wu
authors.forename: Naga P
authors.initials: NP
authors.lastname: Chalasani
authors.forename: Herbert L
authors.initials: HL
authors.lastname: Bonkovsky
mesh_terms: D000069059:Atorvastatin; D005260:Female; D019693:Hepatitis, Autoimmune / Q000209:etiology* / Q000276:immunology; D006538:Heptanoic Acids / Q000009:adverse effects*; D006801:Humans; D006937:Hypercholesterolemia / Q000188:drug therapy; D006949:Hyperlipidemias / Q000188:drug therapy; D000960:Hypolipidemic Agents / Q000009:adverse effects*; D008297:Male; D008875:Middle Aged; D011758:Pyrroles / Q000009:adverse effects*; D019821:Simvastatin / Q000009:adverse effects*
chemical_list: D006538:Heptanoic Acids; D000960:Hypolipidemic Agents; D011758:Pyrroles; D000069059:Atorvastatin; D019821:Simvastatin