Abstract Number: 1652 • ACR Convergence 2021
Symptom Burden in Anti-citrullinated Protein Antibody Positive Individuals At-risk for Rheumatoid Arthritis Is Changing over Time and Comparable to Patients with Early Rheumatoid Arthritis
Background/Purpose: Symptom burden in individuals at risk for developing rheumatoid arthritis (RA) - positive for anti-citrullinated peptide antibodies (ACPA) and musculoskeletal complaints - has not…Abstract Number: 0038 • ACR Convergence 2021
Arthritis Progression in at Risk Individuals Is Associated with ACPAs Not AMPAs
Background/Purpose: Individuals with anti citrullinated protein antibodies (ACPA) and musculoskeletal complaints are at high risk for developing rheumatoid arthritis (RA) and often seek medical attention…Abstract Number: 1654 • ACR Convergence 2021
Comparative Characteristics of the Natural Course of Early Rheumatoid Arthritis with Onset at a Young Age (18-49 Years) and Older (50 Years and Older) Patients Who Did Not Take DMARDs, Biologics, Other Targeted Drugs, Corticoids According to the Russian Register of Arthritis OREL
Background/Purpose: Comparison of frequency of different clinical features of the natural course at the stage of early rheumatoid arthritis (RA) in patients with young and…Abstract Number: 0039 • ACR Convergence 2021
Elevated IgA Subclass Levels in Rheumatoid Arthritis Patients: Indications of a Mucosal Origin?
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: 0042 • ACR Convergence 2021
High-throughput Testing for Modified-protein Antibodies in Patients Diagnosed with “Seronegative” Rheumatoid Arthritis
Background/Purpose: Antibodies to citrullinated and other modified proteins play a critical role in the pathogenesis of rheumatoid arthritis (RA). The prevalence and degree of multi-site…Abstract Number: 0228 • ACR Convergence 2021
Optimizing Social Media as a Recruitment Tool for Hard-to-Reach Populations in Rheumatology Clinical Research
Background/Purpose: Standard methods of recruitment for clinical research, such as traditional media advertisements, can be inefficient and expensive, especially for underserved communities and asymptomatic individuals.…Abstract Number: 0269 • ACR Convergence 2021
Autoantibodies and the Risk of Incident Cardiovascular Disease in US Veterans with Rheumatoid Arthritis
Background/Purpose: Autoantibodies are hypothesized as one of the RA specific factors contributing to a heightened risk of cardiovascular disease (CVD) in this population. However, prior…Abstract Number: 0288 • ACR Convergence 2021
Demographic, Lifestyle, and Clinical Risk Factors for Rheumatoid Arthritis-Associated Bronchiectasis: Role of RA-related Autoantibodies
Background/Purpose: Bronchiectasis is a known extra-articular manifestation of rheumatoid arthritis (RA) characterized by bronchial damage and excessive mucus production that predispose patients to risk of…Abstract Number: 0291 • ACR Convergence 2021
IgA Anti-Cyclic Citrullinated Peptide Antibodies in Bronchoalveolar Lavage Fluid from Patients with Idiopathic Pulmonary Fibrosis Are Associated with Reduced Mortality
Background/Purpose: Idiopathic pulmonary fibrosis (IPF) is a form of interstitial lung disease (ILD) that shares many clinical features with rheumatoid arthritis (RA) associated ILD. Our…Abstract Number: 0440 • ACR Convergence 2021
Association Between Rheumatic Autoantibody Positivity and Immune-related Adverse Events
Background/Purpose: The advent of immune checkpoint inhibitors (ICIs) has revolutionized cancer therapy; however, their use can lead to off-target toxicities called immune-related adverse events (irAEs)…Abstract Number: 0461 • ACR Convergence 2021
Plasmablast-derived Autoantibodies from Individuals At-risk for RA That Target RA-relevant Antigens Are Polyreactive with Arthritogenic Bacteria
Background/Purpose: Circulating autoantibodies like ACPA frequently develop years before symptoms of RA, during which the individual is at-risk for disease. Several lines of evidence suggest…Abstract Number: 0790 • ACR Convergence 2021
Unraveling Heterogeneity Within ACPA-negative Rheumatoid Arthritis; The Subgroup of Patients with a Strong Clinical and Serological Response to Initiation of DMARD-treatment Favor Disease Resolution
Background/Purpose: Rheumatoid arthritis (RA) is a heterogeneous disease, especially ACPA-negative-RA. This is reflected by differences in long-term outcomes, ranging from refractory RA to sustained-DMARD-free-remission(SDFR; sustained…Abstract Number: 0007 • ACR Convergence 2021
Divergent Reactivities of Rheumatoid Factors and Anti-Modified Protein Antibodies Converge on IgG Epitopes
Background/Purpose: Rheumatoid arthritis (RA) patients often develop rheumatoid factors (RFs), antibodies that bind IgG Fc, and anti-modified protein antibodies (AMPAs), multi-reactive autoantibodies that commonly bind…Abstract Number: 0813 • ACR Convergence 2021
Improvement in Clinical Disease Activity and Patient-Reported Outcomes After 6 Months of Treatment with Abatacept, Stratified by Line of Therapy, in Patients with RA: Results from a Large, US, National Observational Study
Background/Purpose: RA is more responsive to treatment in the early stages of disease, and early treatment may lead to better long-term outcomes.1,2 Data on the…Abstract Number: 0012 • ACR Convergence 2021
A Novel Mechanism Linking Mucosal Bacteria with Autoantibody Responses in RA: Acetylated Bacterial Lysate as a Model Antigen
Background/Purpose: Rheumatoid arthritis (RA) is characterized by autoantibodies against post-translationally modified proteins (AMPA) such as citrullinated, carbamylated and acetylated proteins. Importantly, these antibodies are highly…
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