Abstracts tagged "Structure"

Abstract Number: 0852 • ACR Convergence 2024
3-dimensional Shape Changes of the Knee over 4 Years Are Linear and Progressive but Much More Rapid in Osteoarthritic Joints: Data from the Osteoarthritis Initiative
Alan Brett¹, Philip G Conaghan² and Michael Bowes³, ¹Imorphics, Austin, TX, ²Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, and NIHR Leeds Biomedical Research Centre, Leeds Teaching Hospitals NHS Trust, Leeds, United Kingdom, ³Imorphics, Manchester, United Kingdom
Background/Purpose: The specific bony changes of osteophyte growth and “bone attrition” (broadening and flattening of the femoral condyles) associated with OA have been recognized in…
Abstract Number: 0917 • ACR Convergence 2024
Role of Mutual Information Profile Shifts in Assessing the Pathogenicity of Mutations on Protein Functions: The Case of Pyrin Mutations in Familial Mediterranean Fever
Aysima Hacisuleyman¹, Ahmet Gul² and Burak Erman³, ¹Department of Computational Biology, University of Lausanne, Lausanne, Switzerland, ²Division of Rheumatology, Department of Internal Medicine, Istanbul University, Istanbul Faculty of Medicine, Istanbul, Turkey, Istanbul, Turkey, ³3Chemical and Biological Engineering, Koc University, Istanbul, Turkey
Background/Purpose: Predicting the pathogenicity of amino acid substitutions is crucial for understanding the functional consequences of genetic variations. Several computational methods frequently used so far…
Abstract Number: 2593 • ACR Convergence 2024
A Long-term Synovial Tissue 3D Model Incorporating Fibroblasts, Macrophages, Endothelial Cells, and Other Immune Cells Such as Innate Lymphoid Cells Enables Animal Model-Independent Rheumatoid Arthritis Research
Miriam Bollmann¹, Oskar Landberg², Negar Ayoubzadeh², Charlotte A. Jonsson², Inger Gjertsson² and Mattias Svensson², ¹University of Gothenburg, Göteborg, Sweden, ²University of Gothenburg, Gothenburg, Sweden
Background/Purpose: Rheumatoid arthritis (RA) is a chronic inflammatory joint disease with multiple tissues contributing to its pathology, including the synovial membrane. The RA synovial membrane…
Abstract Number: 0315 • ACR Convergence 2024
Microvascular Abnormalities Are Present in Autonomic Dysfunction: Results of a Prospective Study
Sehreen Mumtaz¹, Karissa Arca², Vikas Majithia³, David Hodge³, William Cheshire³ and Florentina Berianu⁴, ¹Mayo Clinic, Florida, Jacksonville, FL, ²Mayo Clinic Arizona, Scottsdale, AZ, ³Mayo Clinic Florida, Jacksonville, FL, ⁴mayo clinic, Ponte Vedra Beach, FL
Background/Purpose: Dysfunction of the autonomic system affects multiple target organs and is linked to microvascular impairment and abnormal vasoreactivity. Given its variable manifestations, diagnosis is…
Abstract Number: 0798 • ACR Convergence 2023
A Novel 3D Model of Rheumatoid Arthritis Synovial Tissue Incorporating Fibroblasts, Endothelial Cells and Macrophages
Eva Philippon¹, Lisanne van Rooijen¹, Jan Piet van Hamburg¹, Fatemeh Khodadust¹, Conny Van der Laken² and Sander Tas³, ¹Amsterdam University Medical Centers, Amsterdam, Netherlands, ²Amsterdam UMC - location VUMC, Amsterdam, Netherlands, ³Amsterdam UMC, locatie AMC, Utrecht, Netherlands
Background/Purpose: Rheumatoid Arthritis (RA) is a progressive and systemic autoimmune disorder associated with chronic and destructive inflammation of the joints. The hallmarks of RA are…
Abstract Number: 1992 • ACR Convergence 2023
Association Between Knee Osteoarthritis Pain and Concomitant Drug Use: A Post-hoc Analysis of Two Phase 3 Clinical Trials
Claire Miller¹, Matthew Baker², Peter Alexandersen³, Alejandro Mondragón¹, Ida Sofie Adrian¹, Morten Karsdal⁴, Jeppe Andersen⁵ and Asger Bihlet¹, ¹NBCD, Soeborg, Denmark, ²Stanford University, Menlo Park, CA, ³Sanos Clinics, Gandrup, Denmark, ⁴Nordic Bioscience, Herlev, Denmark, ⁵Sanos Group, Soeborg, Denmark
Background/Purpose: Patients with knee osteoarthritis are often overweight and suffer from comorbidities, which are frequently treated pharmacologically. Our understanding of the potential disease-modifying and/or symptom-modifying…
Abstract Number: 0691 • ACR Convergence 2022
Structural Differences Exist in Beta-2-Glycoprotein I from APS Patients Compared to Healthy Controls
Hannah Britt¹, Hannah Bradford¹, Valentina Spiteri¹, Anisur Rahman², Ian Giles¹, Mihaela Delcea³, Paul Dalby¹, Kostas Thalassinos¹ and Thomas McDonnell¹, ¹University College London, London, United Kingdom, ²Centre for Rheumatology, Department of Medicine, University College London, London, United Kingdom, ³University of Greifswald, Greifswald, Germany
Background/Purpose: Beta-2-Glycoprotein I (B2GPI) is a serum protein of approximately 50kDa and is the main autoantigen of Antiphospholipid syndrome (APS). Antibodies to B2GPI (aB2GPI) are…
Abstract Number: 1498 • ACR Convergence 2022
The Association Between Sonographic Enthesitis with Sonographic Synovitis and Tenosynovitis in Psoriatic Arthritis
gavriel Balulu¹, Victoria Furer¹, Jonathan Wollman², David Levartovsky¹, Valerie Aloush¹, Ofir Elalouf¹, Hagit Sarbagil-Maman³, Liran Mendel², Sara Borok¹, Daphna Paran¹, Ori Elkayam³ and Ari Polachek¹, ¹Tel Aviv Medical Center, Tel Aviv, Israel, ²Department of Rheumatology, Tel Aviv Sourasky Medical Center, Tel Aviv University, Tel Aviv, Israel, ³Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
Background/Purpose: Enthesitis is considered a hallmark of psoriatic arthritis (PsA). Ultrasound (US) is considered a more accurate tool for the assessment of enthesitis compared to…
Abstract Number: 1116 • ACR Convergence 2020
Magnetic Resonance Imaging Structural Changes Correlated with Knee Extension: Data from the Osteoarthritis Initiative
T Mark Campbell¹, Guy Trudel² and Dennis McGonagle³, ¹Elisabeth Bruyère Hospital, Ottawa, ON, Canada, ²The Ottawa Hospital, Ottawa, ON, Canada, ³The University of Leeds, Leeds Institute for Rheumatic and Musculoskeletal Medicine, NIHR Leeds Biomedical Research Centre, Leeds Teaching Hospitals Trust, Leeds, UK, Leeds, United Kingdom
Background/Purpose: Knee OA is often accompanied by loss of passive extension, termed a flexion contracture (FC), resulting in worse clinical outcomes. To our knowledge, MRI-based…
Abstract Number: 1541 • ACR Convergence 2020
Ultrasound in Knee Osteoarthritis: Reader Performance, Sonographic Features, and Correlation with Radiographic Findings
Ogonna Nwawka¹, Susan Lee¹, Bin Lin², Said Ibrahim³, Collin Brantner⁴, Peter Sculco⁵, Michael Parks¹, Mark Figgie⁶, Laura Donlin¹, Dana Orange⁷, Serene Mirza², Michael Cross¹, Jose Rodriguez¹, Thomas Sculco¹, Miguel Otero², William Robinson⁸, Susan Goodman⁶ and Bella Mehta⁵, ¹Hospital for Special Surgery, Weill Cornell Medicine, New York, ²Hospital for Special Surgery, New York, ³Weill Cornell Medicine, Cleveland, OH, ⁴Hospital for Special Surgery, New York, NY, ⁵Hospital for Special Surgery/Weill Cornell Medicine, New York, NY, ⁶Hospital for Special Surgery, Weill Cornell Medicine, New York, NY, ⁷Rockefeller University, New York, ⁸Stanford University, Palo Alto, CA
Background/Purpose: Radiography is the most widespread imaging technique used in the evaluation of knee osteoarthritis (KOA), and MRI is known to be specific in characterization…
Abstract Number: 2024 • ACR Convergence 2020
Effects of Filgotinib on Spinal Lesions in Patients with Ankylosing Spondylitis: Magnetic Resonance Imaging Data from the Placebo-Controlled, Double‑Blind, Randomized TORTUGA Trial
Walter Maksymowych¹, Mikkel Østergaard², Robert Landewé³, William Barchuk⁴, Ke Liu⁴, Chantal Tasset⁵, Leen Gilles⁵, Thijs Hendrikx⁶, Robin Besuyen⁶ and Xenofon Baraliakos⁷, ¹University of Alberta, Edmonton, AB, Canada, ²Rigshospitalet, University of Copenhagen, Copenhagen, Denmark, ³Amsterdam University Medical Center & Zuyderland Hospital, Amsterdam, Netherlands, ⁴Gilead Sciences, Inc., Foster City, CA, ⁵Galapagos NV, Mechelen, Belgium, ⁶Galapagos BV, Leiden, Netherlands, ⁷Rheumazentrum Ruhrgebiet-Ruhr-University Bochum, Herne, Germany
Background/Purpose: The oral, selective Janus kinase 1 inhibitor filgotinib (FIL) significantly improved Spondyloarthritis Research Consortium of Canada (SPARCC) MRI inflammation scores (bone marrow edema) in…

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