Abstracts tagged "Muscle Biology"

Abstract Number: 2070 • ACR Convergence 2024
Increased Circulating Levels of Fatty Acid-binding Proteins as a Potential Biomarker of Disease Damage in Inflammatory Myopathies Patients
Margherita Giannini¹, Anne-Laure Charles², Julien Blaess³, Rose-Marie Javier⁴, Bernard Geny⁵ and Alain Meyer⁶, ¹UR3072, Physiology Department, University Hospital of Strasbourg, Strasbourg, France, ²UR3072, University of Strasbourg, Strasbourg, France, ³Physiology Department, University Hospital of Strasbourg, STRASBOURG, France, ⁴Rheumatology Department, University Hospital of Strasbourg, STRASBOURG, France, ⁵UR3072, Physiology Department, University Hospital of StrasbourgUniversity Hospital of Strasbourg, STRASBOURG, France, ⁶UR3072, Physiology Department, Rheumatology Department, University Hospital of Strasbourg, Strasbourg, France
Background/Purpose: In inflammatory myopathies (IM), although several treatments effectively control disease activity, a high proportion of patients display sustained disability (damage). Damage might be reversed…
Abstract Number: 2085 • ACR Convergence 2024
The Effects of Pioglitazone on Metabolic Dysregulation in Inclusion Body Myositis: An Open-Label Pilot Study
Brittany Adler¹, Michael Bene¹, Cissy Zhang², Julie Paik¹, Christopher Mecoli¹, Thomas Lloyd³, Eleni Tiniakou⁴, Erika Darrah¹, Lisa Christopher-Stine¹, Albert Mears¹, Megan McGowan¹, Ruben Pagkatipunan¹, Anne Le² and Jemima Albayda⁵, ¹Johns Hopkins University, Baltimore, MD, ²Gigantest, Baltimore, MD, ³Baylor College of Medicine, Houston, TX, ⁴Johns Hopkins University, Lutherville Timonium, MD, ⁵Johns Hopkins School of Medicine, Baltimore, MD
Background/Purpose: Inclusion body myositis (IBM) is a progressive muscle disease for which there is no effective treatment. Mitochondrial dysregulation is a pathologic hallmark of IBM.…
Abstract Number: 2669 • ACR Convergence 2024
Dysferlin Autoantibodies Compromise Sarcolemmal Repair Capacity and Contribute to the Pathogenesis of Idiopathic Immune Myopathies
Hannah Bulgart¹, Kassidy Banford², Shane Bruckner³, Kevin McElhanon², Nicholas Young¹, Brian Paleo², Eric Beck², Rohit Aggarwal⁴, Chester Oddis⁵, Braden Zeno⁶, Wael Jarjour⁷ and Noah Weisleder³, ¹The Ohio State University Wexner Medical Center, Columbus, OH, ²The Ohio State University, Columbus, ³Ohio State University, Columbus, OH, ⁴Division of Rheumatology and Clinical Immunology, University of Pittsburgh, Pittsburgh, PA, USA, Pittsburgh, PA, ⁵Division of Rheumatology and Clinical Immunology, University of Pittsburgh, Pittsburgh, PA, ⁶Ohio State University, upper arlington, OH, ⁷The Ohio State University, Columbus, OH
Background/Purpose: Idiopathic immune myopathies (IIMs) are a group of autoimmune diseases that produce chronic inflammation and degeneration of skeletal muscle structure and function. One process…
Abstract Number: 2670 • ACR Convergence 2024
Sera from Patients with Idiopathic Inflammatory Myopathy Induces Muscle Weakness, Mitochondrial Dysfunction and Induction of Cytokines in Isolated Skeletal Muscle
Cecilia Leijding¹, Suchada Kaewin², Kristofer Andreasson¹, Tomas Schiffer¹, Angeles Galindo-Feria³, Begum Horuluoglu¹, Mattias Carlstrom¹, Stefano Gastaldello¹, Helene Alexanderson⁴, Ingrid Lundberg⁵ and Daniel Andersson⁶, ¹Karolinska Institutet, Stockholm, Sweden, ²Karolinska Institutet, Stockholm, ³Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden, ⁴Karolinska University Hospital, Stockholm, Sweden, ⁵Karolinska Universitetssjukhuset, Karolinska Institutet, Stockholm, Sweden, ⁶Karolinska Institutet, Solna, Sweden
Background/Purpose: Idiopathic inflammatory myopathies (IIM) are a group of systemic autoimmune inflammatory muscle disorders characterized by symmetrical skeletal muscle weakness and accelerated fatigue. Although signs…
Abstract Number: 0163 • ACR Convergence 2024
Modification of 2017 EULAR/ACR Myositis Classification Criteria for Dermatomyositis, Clinically Amyopathic Dermatomyositis, and Immune-mediated Necrotizing Myopathy
Ching Chung¹, Yusra Hasan², Rajesh Gopalarathinam³, shiri keret⁴, Dana Ascherman⁵, Siamak Mogahadam⁶, Chester Oddis⁶ and Rohit Aggarwal⁷, ¹UPMC McKeesport, Pittsburgh, PA, ²CHI health Creighton university medical center, Omaha, NE, ³Division of Rheumatology, Wrightington Wigan and Leigh Teaching Hospitals NHS Foundation Trust, Wigan, United Kingdom, ⁴Rheumatology unit, Bnai-Zion medical center and the faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel., Atlit, Israel, ⁵Division of Rheumatology and Clinical Immunology, University of Pittsburgh Medical Center, Pittsburgh, PA, ⁶Division of Rheumatology and Clinical Immunology, University of Pittsburgh, Pittsburgh, PA, ⁷Division of Rheumatology and Clinical Immunology, University of Pittsburgh, Pittsburgh, PA, USA, Pittsburgh, PA
Background/Purpose: The 2017 ACR/EULAR classification criteria for idiopathic inflammatory myopathies (IIM) currently used in myositis clinical trials/research demonstrated 87% sensitivity and 82% specificity for a…
Abstract Number: 0320 • ACR Convergence 2024
Comparative Transcriptional Profiling Reveals Shared Pathway Activation Between Human Jo-1+ Anti-Synthetase Syndrome and Murine Histidyl-tRNA Synthetase-Induced Myositis
Iago Pinal-Fernandez¹, Daniel Reay², Timothy Oriss², katherine Pak³, Maria Casal-Dominguez⁴, jose milisenda⁵, Albert Selva-O’Callaghan⁶, Werner Stenzel⁷, Andrew Mammen¹ and Dana Ascherman⁸, ¹NIH, Bethesda, MD, ²University of Pittsburgh School of Medicine, Pittsburgh, PA, ³National Institutes of Health, Bethesda, MD, ⁴NIH, Bathesda, MD, ⁵Hospital Clinic de Barcelona, Barcelona, Spain, ⁶Systemic Autoimmune Disease Unit, Vall d’Hebron Institute of Research, Barcelona, Spain, ⁷Charite University, Berlin, Germany, ⁸Division of Rheumatology and Clinical Immunology, University of Pittsburgh Medical Center, Pittsburgh, PA
Background/Purpose: Previous work has shown unique gene expression profiles in muscle tissue corresponding to the anti-synthetase syndrome, with an emphasis on interferon gene signatures (Type…
Abstract Number: 0326 • ACR Convergence 2024
Validity and Responsiveness of Core Set Measures in Idiopathic Inflammatory Myositis Based on 36-item Short Form Health Survey (SF-36)
Maha Almackenzie¹, Anushka Aggarwal², shiri keret³, shreya Sriram⁴, Tanya Chandra⁵, Raisa Silva⁶, Eugenia Gkiaouraki⁴, Siamak Mogahadam⁷, Chester Oddis⁷ and Rohit Aggarwal⁸, ¹Division of Rheumatology, Department of Medicine, Medical Cities of the Ministry of the Interior Riyadh, Saudi Arabia, Arlington, VA, ²Department of Rheumatology, Indraprastha Apollo Hospital, New delhi, NY, ³Rheumatology unit, Bnai-Zion medical center and the faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel., Atlit, Israel, ⁴Division of Rheumatology and Clinical Immunology, University of Pittsburgh Medical Center, Pittsburgh, PA, ⁵University of Pittsburgh Medical Center, Pittsburgh, PA, ⁶Internal medicine, University of Pittsburgh Medical Center, Pittsburgh, PA, ⁷Division of Rheumatology and Clinical Immunology, University of Pittsburgh, Pittsburgh, PA, ⁸Division of Rheumatology and Clinical Immunology, University of Pittsburgh, Pittsburgh, PA, USA, Pittsburgh, PA
Background/Purpose: There are six core set measures (CSMs) of disease activity in patients with idiopathic inflammatory myopathies (IIM). However, there is limited data on their…
Abstract Number: 1735 • ACR Convergence 2024
High-Intensity Interval Training Outperforms Moderate Exercise in Aerobic Capacity for Recent-Onset Idiopathic Inflammatory Myopathies: A Randomized Controlled Trial
Kristofer Andreasson¹, Cecilia Leijding¹, Maryam Dastmalchi², Antonella Notarnicola³, Stefano Gastaldello¹, Heléne Sandlund², Daniel Andersson⁴, Ingrid Lundberg⁵ and Helene Alexanderson², ¹Karolinska Institutet, Stockholm, Sweden, ²Karolinska University hospital, Stockholm, Sweden, ³Karolinska University Hospital and Karolinska Institutet, Stockholm, Stockholms Lan, Sweden, ⁴Karolinska Institutet, Solna, Sweden, ⁵Karolinska Universitetssjukhuset, Karolinska Institutet, Stockholm, Sweden
Background/Purpose: Exercise is a recognized adjunctive therapy for patients with idiopathic inflammatory myopathies (IIM), enhancing physical capacity and reducing inflammation. Hitherto, moderate-to-intensive exercise has been…
Abstract Number: 1779 • ACR Convergence 2024
Single-Nuclear RNA-Sequencing of Treatment Naïve JDM Muscle Highlights Dysregulated Vascular Integrity and Angiogenesis in Endothelial Cells and Decreased Nitric Oxide Synthase Signaling in Type II Muscle Fibers
Jessica Turnier¹, Chioma Madubata², Christine Goudsmit³, Sean Ferris³, Celine Berthier³, Zilan Zheng⁴, Sophia Matossian³, Jeff Dvergsten⁵, Meredyth Wilkinson⁶, Lucy R Wedderburn⁷, Gabrielle Morgan⁸, Lauren Pachman⁹, Claudia Lalancette³, Stephen Parker³, Andrew Heaton¹⁰, J. Michelle Kahlenberg³, Gabriela K Fragiadakis² and Jessica Neely⁴, ¹University of Michigan, Saline, MI, ²University of California, San Francisco, San Francisco, CA, ³University of Michigan, Ann Arbor, MI, ⁴UCSF, San Francisco, CA, ⁵Duke University Hospital, Hillsborough, NC, ⁶Great Ormond Street Institute of Child Health, London, United Kingdom, ⁷UCL GOS Institute of Child Health, London, United Kingdom, ⁸Ann & Robert H. Lurie Children's Hospital of Chicago and Northwestern University Feinberg School of Medicine, Chicago, IL, ⁹Ann & Robert H. Lurie Children's Hospital of Chicago, Chicago, IL, ¹⁰Cure JM, Leesburg, VA
Background/Purpose: Juvenile dermatomyositis (JDM) is the most common idiopathic inflammatory myopathy in children, and it frequently follows a chronic disease course. Treatments are limited secondary…
Abstract Number: 0303 • ACR Convergence 2023
Development of a Human Cytotoxic Myoinjury Model with CD8+ T Cells and Muscle Cells Differentiated from Human Induced Pluripotent Stem Cells
Hisanori Hasegawa¹, Soki Kashima², Makoto Otsu³, Hideki Taniguchi⁴ and Shinsuke Yasuda⁵, ¹Department of Rheumatology, Graduate School of Medical and Dental Science, Tokyo Medical and Dental University (TMDU) and Institute of Global Affairs, Tokyo Medical and Dental University (TMDU), Tokyo, Japan, ²Laboratory of Immunology, Institute for Life and Medical Sciences, Kyoto University and Department of Urology, Akita University Graduate School of Medicine, Akita, Japan, ³Division of Hematology, Department of Laboratory Sciences, School of Allied Health Sciences, Kitasato University, Sagamihara, Japan, ⁴Division of Stem Cell Processing/Stem Cell Bank, Center for Stem Cell Biology and Regenerative Medicine, The Institute of Medical Science, Tokyo, Japan, ⁵Department of Rheumatology, Graduate School of Medical and Dental Science, Tokyo Medical and Dental University (TMDU), Tokyo, Japan
Background/Purpose: CD8+ cytotoxic lymphocytes (CTLs) play a crucial role in the myoinjury of polymyositis (PM). Nonetheless, conventional treatment for PM depends on high-dose glucocorticoids with…
Abstract Number: 0976 • ACR Convergence 2023
Sarcopenia and All-Cause Mortality in US Adults with and Without Rheumatoid Arthritis
Qiping Xu and Xuanling Du, Mayo Clinic Health System, Mankato, MN
Background/Purpose: Sarcopenia, which refers to the loss of muscle strength and mass, has been linked to adverse health outcomes. Although several systemic reviews have reported…
Abstract Number: 1176 • ACR Convergence 2023
Brepocitinib Prevents Type-I Interferon Induced Damage in Cultured Myocytes and Endothelial Cells Indicating a Potential Role in the Treatment of Dermatomyositis
Jiri Vencovsky¹, Jolie Feldman², Lisa McConnachie² and Brendan M. Johnson², ¹Institute of Rheumatology, Prague, Czech Republic, Department of Rheumatology, 1st Faculty of Medicine, Charles University, Prague, Czech Republic, ²Priovant Therapeutics, Durham, NC
Background/Purpose: Dermatomyositis (DM), an idiopathic inflammatory myopathy, is a chronic and often debilitating condition characterized by a hallmark skin rash (e.g., Gottron's sign and heliotrope…
Abstract Number: 1177 • ACR Convergence 2023
Anti-HMGCR Autoantibody Levels in the Follow-up of Statin-induced Immune-mediated Necrotizing Myopathy: Multicentric Study of 24 Patients
David Martinez-Lopez¹, Cristina Corrales Selaya², Diana Prieto-Peña², Piotr Szczesny³, Antonella Notarnicola⁴, Marcos Lopez-Hoyos⁵, Ricardo Blanco⁶, Ingrid Lundberg⁷ and Maryam Dastmalchi⁷, ¹Hospital de Sierrallana, Santander, Spain, ²Hospital Universitario Marqués de Valdecilla, Santander, Spain, ³Department of Rheumatology, National Institute of Geriatrics, Rheumatology and Rehabilitation, Warsaw, Poland; Department of Neurology, Medical University of Warsaw, Warsaw, Poland, ⁴Karolinska University Hospital and Karolinska Institutet, Stockholm, Sweden, ⁵Marques de Valdecilla University Hospital-IDIVAL, Santander, Spain, ⁶Hospital Universitario Marqués de Valdecilla, IDIVAL, Santander, Spain, ⁷Division of Rheumatology, Department of Medicine, Karolinska Institutet; Department of Gastroenterology, Dermatotology, Rhematology, Karolinska Universitetssjukhuset, Stockholm, Sweden
Background/Purpose: Statin-induced immune-mediated necrotizing myopathy (IMNM) is associated with anti-3-hydroxy-3-methylglutaryl-CoA reductase (HMGCR) autoantibodies. It is characterized by elevated creatine kinase (CK) levels, and severe muscle…
Abstract Number: 1718 • ACR Convergence 2023
Longitudinal Quantification of Bone Erosions, Pulmonary Disease, Pain, Gait and Sarcopenia to Holistically Assess Decreased Ad Libitum Physical Activity and Effects of Exercise in the TNF-Transgenic Murine Model of Rheumatoid Arthritis
Calvin Cole¹, H. Mark Kenney², Zachary Sechrist¹, Yue Peng¹, Kiana Chen³, Megan Falsetta¹, Ronald Wood¹, Homaira Rahimi⁴, Christopher T Ritchlin⁵ and Edward Schwarz⁴, ¹University of Rochester Medical Center, Rochester, NY, ²University of Rochester School of Medicine and Dentistry, Henrietta, NY, ³University of Rochester School of Medicine and Dentistry, Rochester, NY, ⁴University of Rochester, Rochester, NY, ⁵University of Rochester Medical School, Allergy, Immunology & Rheumatology Division, Canandaigua, NY
Background/Purpose: Rheumatoid arthritis (RA) is a chronic inflammatory disease characterized by pain, swelling, and joint destruction that decreases mobility.RA patients also suffer from pulmonary disease…
Abstract Number: 1971 • ACR Convergence 2023
Muscle Pathology in Patients with Primary Biliary Cholangitis
Jose Cesar Milisenda¹, Iago Pinal-Fernandez², Katherine Pak², Maria Casal-Dominguez³, Yaiza Duque-Jaimez⁴, Gloria Garrabou¹, Sandra Muñoz-Braceras⁵, Mariona Guitart-Manpel¹, Jose Jiram Torres-Ruiz⁵, Ester Tobias⁴, Maria Dolores Cano⁴, Iban Aldecoa⁴, Josep Maria Grau¹ and Andrew Mammen³, ¹Muscle Research Unit, Internal Medicine Service, Hospital Clinic, Barcelona, Spain, ²National Institutes of Health, Bethesda, MD, ³NIH, Bethesda, MD, ⁴Hospital Clínic de Barcelona, Barcelona, Spain, ⁵Muscle Disease Unit, National Institute of Arthritis and Musculoskeletal and Skin Diseases, National Institutes of Health, Bethesda, MD
Background/Purpose: Primary biliary cholangitis (PBC) is a chronic autoimmune liver disease that primarily affects middle-aged women. It is characterized by elevated serum alkaline phosphatase levels,…

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