title: [Persistent elevation of aspartate aminotransferase (AST) due to the presence of macro-AST: Report of one case].
abstract: We report an asymptomatic 23-year-old woman with an isolated and persistent increase in serum levels of aspartate aminotransferase (AST). An extensive work up including laboratory and image testing revealed no abnormalities thus suggesting the presence of macro-AST. A polyethylene glycol (PEG) precipitation assay was performed and confirmed the presence of macro-AST.
authors.forename: Verónica
authors.initials: V
authors.lastname: Bustamante
authors.forename: Juan Pablo
authors.initials: JP
authors.lastname: Arab
authors.forename: Florencia
authors.initials: F
authors.lastname: Terc
authors.forename: Helena
authors.initials: H
authors.lastname: Poggi
authors.forename: Manuela
authors.initials: M
authors.lastname: Goycoolea
authors.forename: Marco
authors.initials: M
authors.lastname: Arrese
authors.forename: Teresita
authors.initials: T
authors.lastname: Quiroga
authors.forename: Carlos
authors.initials: C
authors.lastname: Benítez
mesh_terms: D000410:Alanine Transaminase / Q000097:blood*; D001219:Aspartate Aminotransferases / Q000097:blood*; D001327:Autoimmune Diseases / Q000175:diagnosis / Q000201:enzymology; D005260:Female; D006801:Humans; D008107:Liver Diseases / Q000175:diagnosis / Q000201:enzymology; D055815:Young Adult
chemical_list: D001219:Aspartate Aminotransferases; D000410:Alanine Transaminase