title: Pathogenic mechanisms in psoriatic arthritis.
abstract: Psoriatic arthritis is an inflammatory arthritis which can develop in some psoriasis patients. The absence of a serological test means that diagnosis must be based on consideration of clinical indices. This article summarizes the inflammatory mediators and immunological events which characterize psoriatic arthritis and examines evidence for involvement of an infectious agent in its aetiology.
authors.affiliation: Department of Immunology, St Bartholomew's, London.
authors.forename: E L
authors.initials: EL
authors.lastname: Ross
authors.forename: D
authors.initials: D
authors.lastname: D'Cruz
authors.forename: W J
authors.initials: WJ
authors.lastname: Morrow
mesh_terms: D015535:Arthritis, Psoriatic / Q000209:etiology* / Q000235:genetics / Q000276:immunology; D001327:Autoimmune Diseases / Q000235:genetics / Q000276:immunology; D001424:Bacterial Infections / Q000276:immunology; D006801:Humans; D018836:Inflammation Mediators / Q000378:metabolism; D009389:Neovascularization, Pathologic; D012867:Skin / Q000276:immunology; D013583:Synovial Membrane / Q000276:immunology; D013601:T-Lymphocytes / Q000276:immunology; D014777:Virus Diseases / Q000276:immunology
chemical_list: D018836:Inflammation Mediators