Abstracts tagged "iga"

Abstract Number: 0039 • ACR Convergence 2021
Elevated IgA Subclass Levels in Rheumatoid Arthritis Patients: Indications of a Mucosal Origin?
Veerle Derksen, Cornelia F. Allaart, Annette H.M van der Helm-van Mil, Tom WJ Huizinga, René Toes and Diane van der Woude, Leiden University Medical Center, Leiden, Netherlands
Background/Purpose: Mucosal surfaces may be involved in the pathophysiology of rheumatoid arthritis (RA) (1). IgA is the most abundant class of immunoglobulin at mucosal sites…
Abstract Number: 1206 • ACR Convergence 2021
Serum Levels of Total IgA Anti-cyclic Citrullinated Protein Antibodies Predict 11-year Radiographic Outcome in Early Rheumatoid Arthritis
Elisabeth Rasmussen¹, Liv Thiele¹, Kristian Stengaard-Pedersen², Merete Hetland³, Kim Horslev-Petersen⁴, Peter Junker⁵, Mikkel Ostergaard⁶, Aida Hansen¹, Malene Hvid¹, Bent Deleuran¹ and Stinne Greisen¹, ¹Aarhus University, Aarhus, Denmark, ²Aarhus University Hospital, Aarhus, Denmark, ³DANBIO and COPECARE, Centre for Rheumatology and Spine Diseases, Rigshospitalet, Glostrup, Denmark, ⁴Danish Hospital for Rheumatic Diseases, Haderslev, Denmark, ⁵Department of Rheumatology, Odense University Hospital, University of Southern Denmark, Odense M, Denmark, ⁶Copenhagen Center for Arthritis Research, Center for Rheumatology and Spine Diseases, Rigshospitalet, Glostrup, and Department of Clinical Medicine, University of Copenhagen, Glostrup, Denmark
Background/Purpose: Rheumatoid arthritis (RA) is characterized by polyarticular synovitis and frequent occurrence of autoantibodies, playing a central role in disease progression. Anti-citrullinated peptide antibodies (ACPA)…
Abstract Number: 1712 • 2019 ACR/ARP Annual Meeting
Head and Neck Involvement of IgA Vasculitis: A Case-Control Study
Michel Villatoro-Villar¹, David Wetter ¹, Cynthia Crowson ², Kenneth Warrington ¹ and Matthew Koster ¹, ¹Mayo Clinic Rochester, Rochester, MN, ²Mayo Clinic Rochester, Rochester
Background/Purpose: IgA vasculitis (IgAV) is an immune-complex mediated, small-vessel vasculitis which predominantly involves the skin on the lower extremities. Head and neck involvement is rarely…

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