Abstracts tagged "Autoantibody(ies)"

Abstract Number: 1048 • ACR Convergence 2022
Nailfold Capillaroscopy and Candidate Biomarker Levels in Systemic Sclerosis-associated Pulmonary Hypertension, Profiling of Non-invasive Markers: A Cross Sectional Study
Jacqueline Lemmers¹, Arjan van Caam², Brigit Kersten², Els Ende, van den², Hanneke KNAAPEN², Arie Dijk, van², Wanda Hagmolen of ten Have², Frank van den Hoogen², Hans Koenen², Sander van Leuven³, wynand Alkema⁴, Ruben Smeets² and Madelon Vonk⁵, ¹Radboud University Medical Centre Nijmegen, Nijmegen, Netherlands, ²Radboudumc, Nijmegen, Netherlands, ³Radboud University, Nijmegen, Netherlands, ⁴Hanze University, Groningen the Netherlands, Dept. Data Science for Life Sciences & Health, Groningen, Netherlands, ⁵Department of Rheumatology, Radboud University Medical Center, Nijmegen, Netherlands
Background/Purpose: Pulmonary hypertension (PH) is one of the leading causes of death in Systemic Sclerosis (SSc). Early detection and treatment of PH in SSc is…
Abstract Number: 1476 • ACR Convergence 2022
Anti-Neutrophil Extracellular Traps (NET) Antibodies and Their Association with Disease Activity and Clinical Phenotypes in Systemic Lupus Erythematosus
Rosa Arvizu-Rivera¹, jiram torres-Ruiz², Alfredo Pérez-Fragoso², Beatriz Alcalá-Carmona³, Miroslava Nuñez-Aguirre⁴, Ana Sofía Vargas-Castro⁴, Abdiel Absalón-Aguilar³, Jaquelin Lira-Luna⁴ and Diana Gómez-Martín², ¹Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran, Ciudad de México, Mexico, ²INCMNSZ, Ciudad de México, Mexico, ³Department of Immunology and Rheumatology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Ciudad de México, Mexico, ⁴Instituto Nacional de Ciencias Medicas y Nutricion "Salvador Zubiran", Ciudad de México, Mexico
Background/Purpose: Enhanced netosis has been acknowledged as pathogenic in Systemic Lupus Erythematosus (SLE). The presence of antibodies against neutrophil extracellular traps (anti-NETs) in patients with…
Abstract Number: 1965 • ACR Convergence 2022
Autoantibodies Against a Specific 25-mer Peptide from P. Gingivalis Are Present in Sera of Patients with Rheumatoid Arthritis and Early Arthritis
Hsin-Yi Peng¹, Ting-Yin Xue¹, Fei-Hung Hsieh¹, Yi-Ko Chen¹, Mei-Chin Yin², Che-Yi Chao², Shu-Yao Tsai², Chung-Ping Lin³, Po-Hao Huang³, Chien-Chung Huang³, Jiunn-Horng Chen³, Chung-Ming Huang³, Der-Yuan Chen⁴, Joung-Liang Lan⁵ and Gregory Tsay³, ¹China Medical University, Taichung, Taiwan, ²Asia University, Taichung, Taiwan, ³China Medical University Hospital, Taichung, Taiwan, ⁴China Medical University Hospital Rheumatology and Immunology Center, Taichung, Taiwan, ⁵China Medoical University Hospital, Taichung, Taiwan
Background/Purpose: The presence of rheumatoid factor (RF) or anti-cyclic citrullinated protein/peptide antibodies (ACPA) are included in the 2010 the ACR/EULAR classification criteria of rheumatoid arthritis…
Abstract Number: 0167 • ACR Convergence 2022
Accuracy of Multi-Centric Local Determination of Anti-Synthetase Autoantibodies in Patients with Anti-Synthetase Syndrome and Other Autoimmune Diseases
Giovanni Zanframundo¹, Angela Ceribelli², Sara Faghihi Kashani³, Monica Morosini⁴, Sara Bozzini⁵, Natasa Isailovic⁶, Carlo Selmi⁷, Lorenzo Cavagna⁸ and Rohit Aggarwal⁹, ¹Università di Pavia, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy, Milano, Italy, ²Humanitas Research Hospital, Humanitas University, Rozzano (MI) Italy, Borgo San Giacomo, Italy, ³Stanford University, Stanford, CA, ⁴Fondazione IRCCS Policlinico San Matteo, Pavia, Italy, Pavia, Italy, ⁵Fondazione IRCCS Policlinico San Matteo, Pavia, Italy, Pavia, ⁶IRCCS Humanitas Research Hospital, Rozzano (MI), Italy, Rozzano, Italy, ⁷IRCCS Humanitas Research Hospital, Humanitas University, Rozzano (MI), Italy, Rozzano, Italy, ⁸Università di Pavia, Fondazione IRCCS Policlinico San Matteo, Pavia, Italy, Pavia, Italy, ⁹Division of Rheumatology and Clinical Immunology, Department of Medicine, University of Pittsburgh, Pittsburgh, PA
Background/Purpose: RNA-immunoprecipitation (RNA-IP) is considered the gold standard method for anti-tRNA synthetase antibodies (ARS-Ab) detection. This technique, however, is not widely available, unlike commercial kits,…
Abstract Number: 0684 • ACR Convergence 2022
Single Antiphospholipid Antibody Positive Thrombotic APS Patients’ Clinical Characteristics: Retrospective Results from the APS ACTION Clinical Database and Repository (Registry)
Silvia Grazietta Foddai¹, Irene Cecchi², Massimo Radin¹, Danieli De Andrade³, Maria Tektonidou⁴, Vittorio Pengo⁵, Guillermo Ruiz-Irastorza⁶, H. Michael Belmont⁷, Maria Gerosa⁸, Paul Fortin⁹, Rosario Lopez-Pedrera¹⁰, Zhouli Zhang¹¹, Tatsuya Atsumi¹², Guilherme de Jesus¹³, Hannah Cohen¹⁴, Nina Kello¹⁵, Ware Branch¹⁶, Denis Wahl¹⁷, Laura Andreoli¹⁸, Esther Rodriguez¹⁹, Michelle Petri²⁰, Ann E. Clarke²¹, Ricard Cervera²², Jason Knight²³, Bahar Artim-Esen²⁴, Rohan Willis²⁵, Guillermo Pons-Estel²⁶, Doruk Erkan²⁷, Dario Roccatello¹ and Savino Sciascia², ¹University of Turin, Turin, Italy, ²University of Turin, Torino, Italy, ³University of São Paulo, São Paulo, Brazil, ⁴University of Athens, Athens, Greece, ⁵University of Padova, Padova, Italy, ⁶University of the Basque Country, Barakaldo, Spain, ⁷New York University School of Medicine, New York, NY, ⁸University of Milan, Milano, Italy, ⁹CHU de Québec Université Laval, Québec, QC, Canada, ¹⁰University of Cordoba, Cordoba, Spain, ¹¹Beijing Medical University, Beijing, China, ¹²Hokkaido University, Sapporo, Japan, ¹³Universidade do Estado do Rio de Janeiro, Rio De Janeiro, Brazil, ¹⁴University College London, London, United Kingdom, ¹⁵Northwell Health, New York, NY, ¹⁶University of Utah Health, Salt Lake City, ¹⁷Nancy University Hospital, Nancy, France, ¹⁸University of Brescia, Brescia, Italy, ¹⁹Hospital Universitario 12 de Octubre, Madrid, Spain, ²⁰Johns Hopkins University School of Medicine, Baltimore, MD, ²¹University of Calgary, Calgary, AB, Canada, ²²University of Barcelona, Barcelona, Spain, ²³University of Michigan, Ann Arbor, MI, ²⁴Istanbul University, Istanbul, Turkey, ²⁵University of Texas, Galveston, TX, ²⁶Centro Regional de Enfermedades Autoinmunes y Reumáticas, Rosario, Argentina, ²⁷Barbara Volcker Center for Women and Rheumatic Diseases, New York, NY
Background/Purpose: The APS ACTION is a network collecting and analyzing data ofaPL positive patients recruited by international centers. Based on the assumption that triple aPL-positive…
Abstract Number: 1068 • ACR Convergence 2022
Anti-vinculin Antibodies in Systemic Sclerosis: Associations with Slow Gastric Transit and Extra-Intestinal Clinical Phenotype
Maria Herran¹, Brit Adler², Jamie Perin³, Walter Morales⁴, Mark Pimentel⁵ and Zsuzsanna McMahan⁶, ¹School of Medicine and Health Sciences, Universidad del Rosario, Bogotá, Colombia, ²Johns Hopkins University, Division of Rheumatology, Baltimore, MD, ³John Hopkins University, Baltimore, MD, ⁴Medically Associated Science and Technology (MAST) Program, Cedars-Sinai, Los Angeles, CA, ⁵Karsh Division of Gastroenterology and Hepatology, Cedars-Sinai, Los Angeles, CA, ⁶Johns Hopkins Rheumatology, Baltimore, MD
Background/Purpose: The gastrointestinal tract is commonly affected in systemic sclerosis (SSc). Prior studies have reported an association between higher levels of anti-vinculin antibodies and gastrointestinal…
Abstract Number: 1523 • ACR Convergence 2022
Anti-RNPC3 Autoantibodies in Mixed Connective Tissue Disease Are Associated with Systemic Sclerosis Skin Involvement
Darya S. Jalaledin¹, Hajar El Kamouni², Alexandra Albert³, Sabrina Hoa⁴, Josiane Bourre-Tessier⁵, Eric Rich⁵, Jean-Richard Goulet⁶, Martial Koenig⁷, Minoru Satoh⁸, Marvin Fritzler⁹, May Choi¹⁰, Yves Troyanov¹¹, Jean-Luc Senécal, MD¹² and Océane Landon-Cardinal⁵, ¹Division of Internal Medicine, Centre Hospitalier de l'Université de Sherbrooke, Saint-Lambert, Canada, ²Division of Rheumatology, Centre Hospitalier de l'Université de Montréal, Laval, Canada, ³Division of Rheumatology, Centre Hospitalier de l'Université Laval, Québec, QC, Canada, ⁴University of Montreal, Montréal, QC, Canada, ⁵Division of Rheumatology, Centre Hospitalier de l'Université de Montréal, Montréal, QC, Canada, ⁶Division of Rheumatology, Centre Hospitalier de l'Université de Montréal, Saint-Lambert, Canada, ⁷Division of Internal Medicine, Centre Hospitalier de l'Université de Montréal, Montréal, QC, Canada, ⁸Department of Human, Information and Science, University of Occupational Environmental Health, Kitakyusyu Fukuoka, Japan, ⁹University of Calgary, Calgary, AB, Canada, ¹⁰Brigham and Women's Hospital | University of Calgary, Calgary, AB, Canada, ¹¹Division of Rheumatology, Hôpital du Sacré-Coeur de Montréal, Montréal, QC, Canada, ¹²Division of Rheumatology, Centre Hospitalier de l'Université de Montréal, Montréal, Canada
Background/Purpose: RNA-binding region containing 3 (RNPC3) protein acts as a molecular bridge, promoting U11/U12 RNP complex formation. In previous studies, systemic sclerosis (SSc) patients who…
Abstract Number: 2021 • ACR Convergence 2022
Early Histopathological Changes of the Salivary Glands Associated with the Development of Primary Sjögren’s Syndrome
Xiaomei Shan¹, Clara Reichardt¹, Jeeshan Singh¹, Anne Zeitler², Christine Schauer¹, Jasmin Knopf¹, Martin Herrmann¹, Gerhard Grossmayer¹, Georg Schett¹ and Luis Munoz¹, ¹Universitätsklinikum Erlangen, Erlangen, Germany, ²Friedrich-Alexander University Erlangen Nürnberg, Erlangen, Germany
Background/Purpose: Primary Sjögren's syndrome (PSS) is a chronic inflammatory disease affecting exocrine glands including salivary and lacrimal glands that leads to dry eyes and mouth…
Abstract Number: 0228 • ACR Convergence 2022
Are We Choosing Wisely? Results of a Survey of Internal Medicine Residents in a Single Center
Joel Wright and Dipal Patel, Englewood Health, Englewood, NJ
Background/Purpose: High value care must be prioritized given the rising costs associated with health care in the United States. The unwarranted testing of ANAs often…
Abstract Number: 0686 • ACR Convergence 2022
Anti-β2GP1/HLA-DR Antibody Is Associated with Arterial Thrombosis in Female Patients with Connective Tissue Diseases: A Cross-Sectional Study in Japan
Katsuhiko Yoneda¹, Yo Ueda¹, Kenji Tanimura², Hirotaka Yamada¹, Takaichi Okano³, Keisuke Nishimura¹, Hisashi Arase⁴, Hideto Yamada⁵ and Jun Saegusa¹, ¹Rheumatology and Clinical Immunology, Kobe University Graduate School of Medicine, Kobe, Japan, ²Department of Obstetrics and Gynecology, Kobe University Hospital, Kobe, Japan, ³Kobe University Hospital, Kobe, Japan, ⁴Department of Immunochemistry, Research Institute for Microbial Disease, Osaka University, Suita, Japan, ⁵Department of Obstetrics and Gynecology, Kobe University Hospital / Center for Recurrent Pregnancy Loss, Teine Keijinkai Hospital, Sapporo, Japan
Background/Purpose: Antiphospholipid syndrome (APS) is an autoimmune disorder characterized by thrombosis and/or pregnancy complications. Recently, β2-glycoprotein I (β2GPI) complexed with HLA class II molecules (β2GPI/HLA-DR)…
Abstract Number: 1121 • ACR Convergence 2022
Intricate Roles of Low Gene Copy Numbers for Complement C4, C4A Deficiency and HLA-DRB1*03 as Genetic Risk Factors for Myositis, Its Subgroups and Autoantibodies
Danlei Zhou¹, Emily H King¹, Simon Rothwell², Olga Kryštůfková³, Antonella Notarnicola⁴, Samantha Coss¹, Rabheh Abdul Aziz⁵, Katherine E Miller¹, Amanda Dang¹, G. Richard Yu¹, Joanne Drew⁶, Emeli Lundstrom⁴, Lauren Pachman⁷, Gulnara Mamyrova⁸, Rodolfo V Curiel⁸, Boel De Paepe⁹, Jan De Bleecker⁹, Antony Payton¹⁰, William Ollier¹¹, Terrance P O'Hanlon¹², Ira Targoff¹², Willy Flegel¹², Vidya Sivaraman⁶, Edward Oberle⁶, Shoghik Akoghlanian⁶, Kyla Driest⁶, Charles H Spencer¹³, Yee Ling Wu¹⁴, Haikady N Nagaraja¹⁵, Stacy P Ardoin⁶, Hector Chinoy¹⁶, Lisa G Rider¹², Frederick Miller¹², Ingrid Lundberg¹⁷, Leonid Padyukov¹⁸, Jiří Vencovský³, Janine A Lamb² and Chack-Yung Yu¹, ¹Center for Microbial Pathogenesis, Abigail Wexner Research Institute, Nationwide Children’s Hospital, Columbus, OH, ²National Institute for Health Research Manchester Biomedical Research Centre, Manchester University NHS Foundation Trust, The University of Manchester, Manchester, United Kingdom, ³Institute of Rheumatology and Department of Rheumatology, First Faculty of Medicine, Charles University, Prague, Czech Republic, ⁴Division of Rheumatology, Department of Medicine, Solna, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden, ⁵Division of Rheumatology, Nationwide Children’s Hospital and Department of Pediatrics, The Ohio State University, Columbus, OH, ⁶Division of Rheumatology, Nationwide Children's Hospital and Department of Pediatrics, The Ohio State University, Columbus, OH, ⁷Northwestern's Feinberg School of Medicine. Ann and Robert H. Lurie Children's Hospital of Chicago; Stanley Manne Children's Research Institute of Chicago, Lake Forest, IL, ⁸Division of Rheumatology, Department of Medicine, George Washington University School of Medicine and Health Sciences, Washington, DC, ⁹Department of Neurology, Ghent University Hospital, Ghent, Belgium, ¹⁰Division of Informatics, Imaging and Data Sciences, School of Health Sciences, Faculty of Biology, Medicine and Health, University of Manchester, Manchester, United Kingdom, ¹¹Faculty of Science and Engineering, Manchester Metropolitan University, Manchester, United Kingdom, ¹²Environmental Autoimmunity Group, Clinical Research Branch, National Institute of Environmental Health Sciences (NIEHS), National Institutes of Health, Bethesda, MD, ¹³Division of Rheumatology, Nationwide Children’s Hospital and Department of Pediatrics, The Ohio State University, Columbus, MS, ¹⁴Department of Microbiology and Immunology, Loyola University Chicago, Maywood, IL, ¹⁵Division of Biostatistics, The Ohio State University, Columbus, OH, ¹⁶The University of Manchester, Sale, United Kingdom, ¹⁷Karolinska Universitetssjukhuset, Karolinska Institutet, Stockholm, Sweden, ¹⁸Karolinska Institutet, Stockholm, Sweden
Background/Purpose: Idiopathic inflammatory myopathies (IIM) are a group of autoimmune diseases characterized by autoantibodies plus infiltration of leukocytes into muscles and/or the skin, leading to…
Abstract Number: 1542 • ACR Convergence 2022
Exploratory Clinical Subgroup Clustering in Systemic Sclerosis – Results from the Indian Progressive Systemic Sclerosis Registry
Shery Susan Philip¹, Ramya Janardana¹, Revanesh S Mirji¹, Chengappa Kavadichanda², Devender Bairwa³, Geetabali Sircar⁴, Parasar Ghosh⁵, Anupam Wakhlu⁶, Padmanabha Shenoy⁷, Sumithra Selvam⁸ and Vineeta Shobha¹, ¹St. John’s Medical College Hospital, Bangalore, India, ²JIPMER, Pondicherry, Puducherry, India, ³Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Puducherry, Puducherry, India, ⁴Institute of Postgraduate Medical Education and Research, Kolkata, West Bengal, India, ⁵Govt of West Bengal, Kolkata, India, Kolkata, West Bengal, India, ⁶Apollo Medics Super Speciality Hospitals, Lucknow, India, ⁷Centre for Arthritis and Rheumatism Excellence (CARE), Cochi, India, ⁸Division of Epidemiology and Biostatistics, St. John’s Research Institute, St. John's Medical College Hospital, Bangalore, India
Background/Purpose: Classification of systemic sclerosis (SSc) into subsets has been a challenge due to it's heterogeneity. This study attempts to identify SSc subsets based on…
Abstract Number: 2023 • ACR Convergence 2022
Salivary Autoantibodies in Sicca Patients Are Associated with Dry Symptoms
Martha Tsaliki¹, Joshua Cavett¹, Biji T. Kurien², Christina Bruxvoort¹, Robert Hal Scofield² and Kristi A Koelsch³, ¹University of Oklahoma Health Sciences Center, Oklahoma City, OK, ²University of Oklahoma Health Sciences Center, Oklahoma, OK, ³Oklahoma Medical Research Foundation, Oklahoma City, OK
Background/Purpose: Sjögren’s Syndrome (SS) diagnosis depends on clinic examinations that involve measurements of serum levels of anti-Ro\SSA, anti-La\SSB, and rheumatoid factor antibodies; the first is…
Abstract Number: 0321 • ACR Convergence 2022
M-Phase Phosphoprotein 1 (MPP-1) Autoantibodies as a Potential Biomarker for Cranial Neuropathies in an International SLE Inception Cohort
Eugene Krustev¹, John Hanly², Ricky Chin³, Katherine Buhler¹, Francesca S Cardwell⁴, Murray Urowitz⁵, Caroline Gordon⁶, Sang-Cheol Bae⁷, Juanita Romero-Diaz⁸, Jorge Sanchez-Guerrero⁹, Sasha Bernatsky¹⁰, Daniel Wallace¹¹, David Isenberg¹², Anisur Rahman¹³, Joan Merrill¹⁴, Paul R Fortin¹⁵, Dafna Gladman¹⁶, Ian N. Bruce¹⁷, Michelle Petri¹⁸, Ellen M. Ginzler¹⁹, Mary Anne Dooley²⁰, Rosalind Ramsey-Goldman²¹, Susan Manzi²², Andreas Jönsen²³, Graciela Alarcón²⁴, Ronald van Vollenhoven²⁵, Cynthia Aranow²⁶, Meggan Mackay²⁶, Guillermo Ruiz-Irastorza²⁷, S. Sam Lim²⁸, Murat İnanç²⁹, Kenneth Kalunian³⁰, Soren Jacobsen³¹, Christine Peschken³², Diane Kamen³³, Anca Askanase³⁴, Jill Buyon³⁵, Marvin Fritzler¹, Ann E Clarke³⁶ and May Choi³⁷, ¹University of Calgary, Calgary, AB, Canada, ²Division of Rheumatology, Queen Elizabeth II Health Sciences Center (Nova Scotia Rehabilitation Site) and Dalhousie University, Halifax, NS, Canada, ³University of Calgary, Ottawa, ON, Canada, ⁴University of Waterloo, Department of Geography & Environmental Management, Burlington, ON, Canada, ⁵University of Toronto, University Health Network, Schroeder Arthritis Institute, Toronto, ON, Canada, ⁶Rheumatology Research Group, Institute of Inflammation and Ageing, College of Medical and Dental Sciences, University of Birmingham, Birmingham, United Kingdom, ⁷Hanyang University Medical Center, Seoul, Republic of Korea, ⁸Instituto Nacional de Ciencias Medicas y Nutricion SZ, Ciudad de México, Mexico, ⁹Mount Sinai Hospital and University Health Network, University of Toronto, Toronto, ON, Canada, ¹⁰Research Institute of the McGill University Health Centre, Montréal, QC, Canada, ¹¹Cedars-Sinai Medical Center, Los Angeles, CA, ¹²University College London, London, United Kingdom, ¹³Centre for Rheumatology, Department of Medicine, University College London, London, United Kingdom, ¹⁴Oklahoma Medical Research Foundation, Oklahoma City, OK, ¹⁵Centre ARThrite - CHU de Québec - Université Laval, Québec, QC, Canada, ¹⁶Toronto Western Hospital, Schroeder Arthritis Institute, Toronto, ON, Canada, ¹⁷Centre for Epidemiology Versus Arthritis, Faculty of Biology, Medicine and Health, The University of Manchester, Manchester, United Kingdom, ¹⁸Johns Hopkins University School of Medicine, Division of Rheumatology, Baltimore, MD, ¹⁹SUNY Downstate Health Sciences University, Department of Medicine, Brooklyn, NY, ²⁰Raleigh Neurology Associates, Chapel Hill, NC, ²¹Northwestern University Feinberg School of Medicine, Chicago, USA, Chicago, IL, ²²Allegheny Health Network, Lupus Center of Excellence, Wexford, PA, ²³Department of Clinical Sciences, Lund, Section for Rheumatology, Lund University, Lund and Skåne University Hospital, Lund, Sweden, ²⁴The University of Alabama at Birmingham, Oakland, ²⁵Amsterdam University Medical Centers, Amsterdam, Netherlands, ²⁶Feinstein Institutes for Medical Research, Manhasset, NY, ²⁷Autoimmune Diseases Research Unit, Biocruces Bizkaia Health Research Institute, Hospital Universitario Cruces, UPV/EHU, Barakaldo, Spain, ²⁸Emory University, Atlanta, GA, ²⁹Istanbul University Faculty of Medicine, Istanbul, Turkey, ³⁰University of California San Diego, La Jolla, CA, ³¹Rigshospitalet, Copenhagen, Denmark, ³²University of Manitoba, Winnipeg, MB, Canada, ³³Medical University of South Carolina, Charleston, SC, ³⁴Columbia University Medical Center, New York, NY, ³⁵NYU Grossman School of Medicine, New York, NY, ³⁶University of Calgary, Division of Rheumatology, Cumming School of Medicine, Calgary, AB, Canada, ³⁷Brigham and Women's Hospital | University of Calgary, Calgary, AB, Canada
Background/Purpose: We previously reported in a single centre prevalent SLE cohort that antibodies against the cytokinesis-associated protein M-Phase Phosphoprotein 1 (anti-MPP-1) were associated with SLE-related…
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…

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