Abstracts tagged "Myositis"

Abstract Number: 0718 • ACR Convergence 2021
Pain Severity and Interference in Adult Autoimmune Inflammatory Myopathies
Harmony Tsui¹, Mianbo Wang², Mathieu Piché³, Alexandra Ladouceur⁴, Evelyne Vinet⁵, Alexandra Albert⁶, Maggie Larche⁷, Annaliese Tisseverasinghe⁸, Marie Hudson¹ and Valerie Leclair⁹, ¹McGill University, Montréal, QC, Canada, ²Lady Davis institute for Medical Research, Montréal, QC, Canada, ³Université du Québec à Trois-Rivières, Trois-Rivières, QC, Canada, ⁴McGill University Health Center, Montréal, QC, Canada, ⁵McGill University Health Centre, Mont Royal, QC, Canada, ⁶CHU de Quebec, Québec City, QC, Canada, ⁷McMaster University, Hamilton, ON, Canada, ⁸University of Manitoba, Winnipeg, MB, Canada, ⁹McGill University, Karolinska Insitutet, Montréal, QC, Canada
Background/Purpose: Although pain is one of the most common and highest priority symptoms reported by people with autoimmune inflammatory myopathies (AIM), large descriptive studies on…
Abstract Number: 1841 • ACR Convergence 2021
Presence of Autoantibodies to Dense-Fine-Speckled 70 (DFS70) Do Not Necessarily Rule out Connective Tissue Diseases
Louisa-Marie Mockenhaupt¹, Ramona Dolscheid-Pommerich¹, Charlotte Behning¹, Birgit Stoffel-Wagner², Peter Brossart¹ and Valentin Schäfer¹, ¹University Hospital Bonn, Bonn, Germany, ²University Hospital Bonn, Bonn
Background/Purpose: Antinuclear antibodies (ANA) are serological markers for the presence of connective tissue diseases [1]. In some patients, a pattern can be detected in ANA…
Abstract Number: 0001 • ACR Convergence 2021
Autoantigenic Properties Indicated for the Entire Aminoacyl tRNA Synthetase Family in Idiopathic Inflammatory Myopathies
Charlotta Preger¹, Antonella Notarnicola¹, Cecilia Hellström², Edvard Wigren¹, Catia Cerqueira³, Peter Nilsson², Ingrid E Lundberg¹, Helena Persson⁴, Susanne Gräslund¹ and Per-Johan Jakobsson⁵, ¹Karolinska Institutet, Karolinska University Hospital, Division of Rheumatology, Department of Medicine Solna, Stockholm, Sweden, Stockholm, Sweden, ²Division of Affinity Proteomics, Department of Protein Science, KTH Royal Institute of Technology & SciLifeLab, Stockholm, Sweden, ³4Dcell, Montreuil, France, ⁴Drug Discovery and Development Platform, SciLifeLab & School of Engineering Sciences in Chemistry, Biotechnology and Health, Royal Institute of Technology (KTH), Solna, Sweden, ⁵Karolinska Institutet, Stockholm, Sweden
Background/Purpose: Autoantibodies are thought to play a key role in the pathogenesis of idiopathic inflammatory myopathies (IIM). However, 40% of IIM patients, even those with…
Abstract Number: 0698 • ACR Convergence 2021
Flow Cytometry and Sorting of Single Antibody Secreting Cells from Frozen Muscle Tissue
Andrew Zlobin, Peter Pytel and Vladimir Liarski, University of Chicago, Chicago, IL
Background/Purpose: Idiopathic inflammatory myopathies (IIM) – dermatomyositis (DM), polymyositis, and inclusion body myositis - are poorly understood autoimmune muscle disorders. Isolation of relevant immune cell…
Abstract Number: 0719 • ACR Convergence 2021
Increased Risk of Venous Thromboembolism in Adult Patients with Idiopathic Inflammatory Myopathies
Gözde Kübra Yardımcı¹, Arzu Taghiyeva², Enes Erul², Bayram Farisogulları³, Levent Kilic¹ and Sule Apraş Bilgen¹, ¹Hacettepe University, Faculty of Medicine, Department of Internal Medicine, Division of Rheumatology, Ankara, Turkey, ²HACETTEPE UNIVERSITY, Ankara, Turkey, ³Division of Rheumatology, Department of Internal Medicine Faculty of Medicine, Hacettepe University, Ankara, Turkey
Background/Purpose: Idiopathic inflammatory myopathies (IIMs) patients have a higher risk of venous thromboembolism (VTE) [1]. We aimed to assess the incidence of thrombosis and associated…
Abstract Number: 0008 • ACR Convergence 2021
Jo-1-Binding and Clonally-Expanded Memory B Cells Express Germline and Somatically-Mutated B Cell Receptors in Anti-tRNA Synthetase Syndrome Patients
Erin Wilfong, Alberto Cisneros, Jennifer Young-Glazer, Scott Smith, Leslie Crofford and Rachel Bonami, Vanderbilt University Medical Center, Nashville, TN
Background/Purpose: Anti-tRNA synthetase syndrome (ARS) is a severe systemic autoimmune disease associated with myositis, interstitial lung disease, rash, and arthritis. ARS is associated with autoantibodies…
Abstract Number: 0699 • ACR Convergence 2021
Clinical Characteristics of Idiopathic Inflammatory Myositis Manifesting with Myoglobinuria: A 15 Year Retrospective Review
Lilian Vilar, William Moore and Ian Ward, Dwight D Eisenhower Army Medical Center, Fort Gordon
Background/Purpose: The Idiopathic Inflammatory myopathies (IIM) are characterized by muscle damage and progressive weakness. Myoglobin is not typically released in high levels in IIM and…
Abstract Number: 0720 • ACR Convergence 2021
The Clinical Significance of anti-PC4 and SFRS1 Interacting Protein 1 Antibody in Polymyositis and Dermatomyositis Patients
Yuji Hosono¹, Azusa Kojima¹, Akira Ishii¹, Yuto Izumi¹, Kazuki Hirano¹, Noriko Sasaki², Chiho Yamada¹ and Shinji Sato³, ¹Tokai University School of Medicine, Isehara, Japan, ²tokai university, sagamihara-city, Japan, ³Tokai University, Isehara, Japan
Background/Purpose: Many kinds of myositis specific autoantibodies are detected in sera from polymyositis (PM) and dermatomyositis (DM). Screening for autoantibodies is essential in the diagnostic…
Abstract Number: 0330 • ACR Convergence 2021
Serologic Phenotypes Distinguish SLE Patients with Myositis And/or Interstitial Lung Disease (ILD)
Thaisa Cotton¹, Marvin Fritzler², May Choi³, Boyang Zheng⁴, Omid Zahedi Niaki⁵, Louis-Pierre Grenier⁵, Evelyne Vinet⁶, Christian Pineau¹, Luck Lukusa⁷, Fares Kalache⁵ and Sasha Bernatsky¹, ¹McGill University, Montréal, QC, Canada, ²University of Calgary, Calgary, AB, Canada, ³Brigham and Women's Hospital | University of Calgary, Calgary, AB, Canada, ⁴University of British Columbia, Vancouver, BC, Canada, ⁵McGill University Health Centre, Montréal, QC, Canada, ⁶McGill University Health Centre, Mont Royal, QC, Canada, ⁷Research Institute of the McGill University Health Centre, Montréal, QC, Canada
Background/Purpose: To determine if a serologic phenotype can be identified in SLE patients with myositis and/or ILD.Methods: Adult SLE patients (without myositis or ILD at…
Abstract Number: 0700 • ACR Convergence 2021
Clinical Outcomes in Idiopathic Inflammatory Myositis Within the Military Health System: A 15 Year Retrospective Review
David Mecham¹, William Moore¹ and Ian Ward², ¹Dwight D Eisenhower Army Medical Center, Fort Gordon, ²United States Army, Evans, GA
Background/Purpose: The Idiopathic Inflammatory Myopathies (IIM) are often difficult to treat, require chronic steroid therapy, and can remain active despite multiple treatment regimens. The objective…
Abstract Number: 0721 • ACR Convergence 2021
Timed Function Tests as Measures of Disease Activity and Functional Outcome in Inflammatory Myositis
saikumar dunga¹, Chengappa Kavadichanda² and VirSingh Negi³, ¹Jawaharlal Institute of Postgraduate Medical Education and Research, Puducherry, India, ²JIPMER, Pondicherry, India, ³Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, India
Background/Purpose: Manual muscle testing (MMT) and Functional index 2(FI-2) are the usual methods in assessing disease activity and functional status in IIM1. Limitations of MMT8…
Abstract Number: 0441 • ACR Convergence 2021
A Randomized, Double-blind, Placebo-controlled Study of Arimoclomol in Patients with Inclusion Body Myositis
Pedro Machado¹, Richard Barohn², Michael McDermott³, Thomas Blaetter⁴, Tom Lloyd⁵, Aziz Shaibani⁶, Miriam Freimer⁷, Anthony Amato⁸, Emma Ciafaloni³, Sarah Jones⁹, Tahseen Mozaffar¹⁰, Summer Gibson¹¹, Matthew Wicklund¹², Todd Levine¹³, Claus Sundgreen⁴, Tim Carstensen⁴, Karen Bonefeld⁴, Anders Jørgensen⁴, Karina Phonekeo⁴, Andrew Heim¹⁴, Laura Herbelin¹⁴, Michael Hanna¹⁵ and Mazen Dimachkie¹⁴, ¹Centre for Rheumatology & Department of Neuromuscular Diseases, University College London, London, United Kingdom, ²University of Missouri - Columbia, Columbia, MO, ³University of Rochester, Rochester, NY, ⁴Orphazyme A/S, Copenhagen, Denmark, ⁵Johns Hopkins University, Baltimore, MD, ⁶Nerve and Musle Center, Houston, TX, ⁷Ohio State University, Columbus, OH, ⁸Brigham and Women's Hospital, Boston, MA, ⁹University of Virginia, Charlottesville, VA, ¹⁰University of California Irvine, Irvine, CA, ¹¹University of Utah, Salt Lake City, UT, ¹²University of Colorado, Denver, CO, ¹³Phoenix Neurological Associates, Phoenix, AZ, ¹⁴University of Kansas Medical Center, Kansas City, KS, ¹⁵University College London, London, United Kingdom
Background/Purpose: Inclusion body myositis (IBM) is the most common idiopathic inflammatory myopathy occurring in patients over the age of 45 years. Since immune suppression has…
Abstract Number: 0702 • ACR Convergence 2021
Performance of Commercial Autoantibody Testing in Comparison to Recognized Gold Standards in Myositis Autoantibody Testing
Sarvar Nazir¹, Lisa Rider², Ira Targoff³, Stanley Naides⁴, Andrew Mammen⁵, Steven Greenberg⁶ and Adam Schiffenbauer⁵, ¹NIEHS, NIH, Bethesda, MD, ²NIEHS, NIH, Garrett Park, MD, ³Oklahoma Medical Research Foundation, Oklahoma City, OK, ⁴Self, Dana Point, CA, ⁵National Institutes of Health, Bethesda, MD, ⁶Department of Neurology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA
Background/Purpose: The idiopathic inflammatory myopathies (IIM) are a heterogenous group of autoimmune conditions. The presence of myositis-specific autoantibodies (MSAs) and myositis-associated autoantibodies (MAAs) in patients…
Abstract Number: 0722 • ACR Convergence 2021
Myostatin in Idiopathic Inflammatory Myopathies: Seric Assessment and Disease Activity
Alexandrine Mahoudeau¹, Céline Anquetil², Nozomu Tawara¹, Hossein Khademian¹, Damien Amelin¹, Yves Allenbach³ and Olivier Benveniste³, ¹Center of Research in Myology, Sorbonne University, Paris, France, ²Center of Research in Myology, Sorbonne University - AP-HP, Pitié-Salpêtrière Hospital, Department of Clinical Immunology and Internal Medicine, Paris, France, ³Sorbonne University - AP-HP, Pitié-Salpêtrière Hospital, Department of Clinical Immunology and Internal Medicine, Paris, France
Background/Purpose: In Idiopathic Inflammatory Myopathies (IIM) disease activity is very difficult to assess and IIM may induce severe muscle damage, especially in immune-mediated necrotizing myopathies…
Abstract Number: 0442 • ACR Convergence 2021
Identification of Plexin D1 on Circulating Extracellular Vesicles as a Potential Biomarker of Polymyositis and Dermatomyositis
Kenichi Uto¹, Koji Ueda², Takaichi Okano¹, Kengo Akashi¹, Soshi Takahashi³, Yuji Nakamachi⁴, Takamitsu Imanishi¹, Seiji Kawano¹, Yoshihiko Yano⁵ and Jun Saegusa⁶, ¹Kobe University Hospital, Kobe, Japan, ²Japanese Foundation for Cancer Research, Tokyo, Japan, ³Shinko Hospital, Kobe, Japan, ⁴Kobe University School of Medicine, Kobe, Japan, ⁵Department of Clinical Laboratory, Kobe University Hospital, Kobe, Japan, ⁶Rheumatology and Clinical Immunology, Kobe University Hospital, Kobe, Japan
Background/Purpose: Extracellular vesicles (EVs), including exosomes and microvesicles, are small membrane vesicles released by almost all cell types and are found circulating in blood and…

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