title: GRAPPA 2013 Annual Meeting, rheumatology updates: psoriatic arthritis (PsA) biomarker project, arthritis mutilans, PsA-peripheral spondyloarthritis epidemiology project.
abstract: At the 2013 annual meeting of the Group for Research and Assessment of Psoriasis and Psoriatic Arthritis (GRAPPA), several key GRAPPA projects on musculoskeletal aspects of psoriatic disease were reviewed. In this article, lead investigators summarize the progress made in a multicenter study, the PsA BioDam (Psoriatic Arthritis Biomarkers for Joint Damage), to identify soluble biomarkers for joint damage, as well as developing classification criteria for arthritis mutilans. Also reviewed are concepts and rationale behind a proposal to study classification criteria for peripheral spondyloarthritis, including PsA, reactive arthritis, inflammatory bowel disease-associated arthritis, and undifferentiated arthritis.
authors.affiliation: From the Department of Rheumatology, St. Vincent's University Hospital and Conway Institute for Biomolecular Research, University College, Dublin, Ireland; Rheumatology Research, Swedish Medical Center, University of Washington School of Medicine, Seattle, Washington, USA; Academic Unit of Musculoskeletal Disease, Chapel Allerton Hospital, Leeds, UK; Division of Rheumatology, Department of Medicine, University of Toronto; Centre for Prognostic Studies in the Rheumatic Diseases, Toronto Western Hospital, University Health Network, Toronto, Ontario, Canada.O. FitzGerald, MD, Department of Rheumatology, St. Vincent's University Hospital and Conway Institute for Biomolecular Research, University College; P.J. Mease, MD, Rheumatology Research, Swedish Medical Center and Clinical Professor, University of Washington School of Medicine; P.S. Helliwell, DM, PhD, Academic Unit of Musculoskeletal Disease, Chapel Allerton Hospital; V. Chandran, MBBS, MD, DM, PhD, Division of Rheumatology, Department of Medicine, University of Toronto, and Centre for Prognostic Studies in the Rheumatic Diseases, Toronto Western Hospital, University Health Network.
authors.forename: Oliver
authors.initials: O
authors.lastname: FitzGerald
authors.affiliation: From the Department of Rheumatology, St. Vincent's University Hospital and Conway Institute for Biomolecular Research, University College, Dublin, Ireland; Rheumatology Research, Swedish Medical Center, University of Washington School of Medicine, Seattle, Washington, USA; Academic Unit of Musculoskeletal Disease, Chapel Allerton Hospital, Leeds, UK; Division of Rheumatology, Department of Medicine, University of Toronto; Centre for Prognostic Studies in the Rheumatic Diseases, Toronto Western Hospital, University Health Network, Toronto, Ontario, Canada.O. FitzGerald, MD, Department of Rheumatology, St. Vincent's University Hospital and Conway Institute for Biomolecular Research, University College; P.J. Mease, MD, Rheumatology Research, Swedish Medical Center and Clinical Professor, University of Washington School of Medicine; P.S. Helliwell, DM, PhD, Academic Unit of Musculoskeletal Disease, Chapel Allerton Hospital; V. Chandran, MBBS, MD, DM, PhD, Division of Rheumatology, Department of Medicine, University of Toronto, and Centre for Prognostic Studies in the Rheumatic Diseases, Toronto Western Hospital, University Health Network.
authors.forename: Philip J
authors.initials: PJ
authors.lastname: Mease
authors.affiliation: From the Department of Rheumatology, St. Vincent's University Hospital and Conway Institute for Biomolecular Research, University College, Dublin, Ireland; Rheumatology Research, Swedish Medical Center, University of Washington School of Medicine, Seattle, Washington, USA; Academic Unit of Musculoskeletal Disease, Chapel Allerton Hospital, Leeds, UK; Division of Rheumatology, Department of Medicine, University of Toronto; Centre for Prognostic Studies in the Rheumatic Diseases, Toronto Western Hospital, University Health Network, Toronto, Ontario, Canada.O. FitzGerald, MD, Department of Rheumatology, St. Vincent's University Hospital and Conway Institute for Biomolecular Research, University College; P.J. Mease, MD, Rheumatology Research, Swedish Medical Center and Clinical Professor, University of Washington School of Medicine; P.S. Helliwell, DM, PhD, Academic Unit of Musculoskeletal Disease, Chapel Allerton Hospital; V. Chandran, MBBS, MD, DM, PhD, Division of Rheumatology, Department of Medicine, University of Toronto, and Centre for Prognostic Studies in the Rheumatic Diseases, Toronto Western Hospital, University Health Network.
authors.forename: Philip S
authors.initials: PS
authors.lastname: Helliwell
authors.affiliation: From the Department of Rheumatology, St. Vincent's University Hospital and Conway Institute for Biomolecular Research, University College, Dublin, Ireland; Rheumatology Research, Swedish Medical Center, University of Washington School of Medicine, Seattle, Washington, USA; Academic Unit of Musculoskeletal Disease, Chapel Allerton Hospital, Leeds, UK; Division of Rheumatology, Department of Medicine, University of Toronto; Centre for Prognostic Studies in the Rheumatic Diseases, Toronto Western Hospital, University Health Network, Toronto, Ontario, Canada.O. FitzGerald, MD, Department of Rheumatology, St. Vincent's University Hospital and Conway Institute for Biomolecular Research, University College; P.J. Mease, MD, Rheumatology Research, Swedish Medical Center and Clinical Professor, University of Washington School of Medicine; P.S. Helliwell, DM, PhD, Academic Unit of Musculoskeletal Disease, Chapel Allerton Hospital; V. Chandran, MBBS, MD, DM, PhD, Division of Rheumatology, Department of Medicine, University of Toronto, and Centre for Prognostic Studies in the Rheumatic Diseases, Toronto Western Hospital, University Health Network. vchandra@uhnresearch.ca.
authors.forename: Vinod
authors.initials: V
authors.lastname: Chandran
mesh_terms: D001168:Arthritis / Q000145:classification* / Q000175:diagnosis / Q000453:epidemiology; D015535:Arthritis, Psoriatic / Q000097:blood / Q000175:diagnosis*; D015415:Biomarkers / Q000097:blood; D006801:Humans
chemical_list: D015415:Biomarkers
keywords: ANKYLOSIS; BIOMARKERS; OSTEOLYSIS; PSA BIODAM; PSORIATIC ARTHRITIS; SPONDYLOARTHRITIS