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Intestinal Wegener's granulomatosis in a patient with severe alpha-1-antitrypsin deficiency resulting from a unique combination of two deficiency alleles (PiZ and PiMProcida).
Lonardo, Amedeo; Medicina, Daniela; Leonelli, Marco; Bagni, Alberto; Callea, Francesco.
Afiliação
  • Lonardo A; Division of Internal Medicine and Gastroenterology, Modena City Hospital, Italy. a.lonardo@libero.it
Eur J Gastroenterol Hepatol ; 14(12): 1389-92, 2002 Dec.
Article em En | MEDLINE | ID: mdl-12468963
Alpha-1-antitripsyn neutralizes the tissue damaging effects of proteases. Alpha-1-antitripsyn deficiency manifests with necrotizing vasculitis. Wegener's granulomatosis is a systemic necrotizing vasculitis that uncommonly affects the gut. The molecular genetics of patients with Wegener's granulomatosis of the gastrointestinal tract have never been characterized. A 63-year-old man with emphysema was admitted with a fever of unknown origin. Initially, this fever was linked to ileocolic Crohn's disease and later attributed to antineutrophil cytoplasm antibody-positive systemic vasculitis. Genetic analysis revealed that the alpha-1-antitripsyn deficiency was due to a previously unreported compound heterozygosity for two mutations (PiZ and PiMProcida). Our findings appear to support the concept that severe alpha-1-antitripsyn deficiency is implicated in the pathogenesis of the Crohn's disease-like milder intestinal manifestations belonging to the spectrum of Wegener's granulomatosis.
Assuntos
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Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Doença de Crohn / Granulomatose com Poliangiite / Deficiência de alfa 1-Antitripsina / Mutação Limite: Humans / Male / Middle aged Idioma: En Ano de publicação: 2002 Tipo de documento: Article
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Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Doença de Crohn / Granulomatose com Poliangiite / Deficiência de alfa 1-Antitripsina / Mutação Limite: Humans / Male / Middle aged Idioma: En Ano de publicação: 2002 Tipo de documento: Article