Abstracts tagged "Bioinformatics"

Abstract Number: 0256 • ACR Convergence 2022
Patients with ACPA-positive and ACPA-negative Rheumatoid Arthritis Show Different Circulating Auto-antibody Repertoires
Kevin Cunningham¹, Benjamin Hur², John Davis² and Jaeyun Sung², ¹University of Minnesota, Rochester, MN, ²Mayo Clinic, Rochester, MN
Background/Purpose: RA is commonly diagnosed through a serological test for the presence of ACPA, and RA patients who test positive are collectively known as 'ACPA-positive…
Abstract Number: 0905 • ACR Convergence 2022
Predicting Disease Activity in Rheumatoid Arthritis Patients Using Machine Learning: Data from the ACR’s RISE Registry
Eren-Ajani Tshimanga¹, Milena Gianfrancesco², Stefanos Giampanis³, Jing Li², Emma Kersey⁴, Jinoos Yazdany⁵, Beau Norgeot⁶, Gabriela Schmajuk⁷ and Zara Izadi⁴, ¹University of California, Berkeley, Berkeley, CA, ²University of California, San Francisco, San Francisco, CA, ³Anthem, San Francisco, ⁴University of California San Francisco, San Francisco, CA, ⁵UCSF, San Francisco, CA, ⁶Anthem, Oakland, CA, ⁷UCSF / SFVA, San Francisco, CA
Background/Purpose: Predicting the trajectory of disease in individuals with RA is difficult, with numerous factors influencing whether a patient may experience higher or lower disease…
Abstract Number: 1181 • ACR Convergence 2022
Hippo Pathway Effectors Promote and Maintain Myofibroblast Differentiation and Endothelial-to-mesenchymal Transition in Systemic Sclerosis
Feiyang Ma¹, Pei-Suen Tsou¹, Grace Hile¹, John Varga¹, J. Michelle Kahlenberg¹, Allison Billi¹, Johann Gudjonsson¹ and Dinesh Khanna², ¹University of Michigan, Ann Arbor, MI, ²Division of Rheumatology, Department of Internal Medicine, Scleroderma Program, University of Michigan, Ann Arbor, MI
Background/Purpose: Systemic sclerosis (SSc) is a devastating autoimmune disease characterized by excessive production and accumulation of extracellular matrix molecules leading to fibrosis of skin and…
Abstract Number: 2020 • ACR Convergence 2022
Autophagy-related Risk Loci in Systemic Lupus Erythematous and Sjögren’s Disease
Anna Nagel¹, Bhuwan Khatri¹, Marcin Radziszewski¹, Mandi Wiley¹, Anna Stolarczyk¹, Michelle Joachims¹, Kandice Tessneer¹, Astrid Rasmussen¹, Professor Simon Bowman², Lida Radfar³, Roald Omdal⁴, Marie Wahren-Herlenius⁵, Blake Warner⁶, Torsten Witte⁷, Roland Jonsson⁸, Maureen Rischmueller⁹, Patrick Gaffney¹, Judith James¹, Lars Ronnblom¹⁰, Hal Scofield¹, Xavier Mariette¹¹, Marta Alarcon-Riquelme¹², Fai Ng¹³, Gunnel Nordmark¹⁰, Qing Sun¹⁴, Kwangwoo Kim¹⁵, Sang-Cheol Bae¹⁶, Betty Tsao¹⁴, A. Darise Farris¹ and Christopher Lessard¹, ¹Oklahoma Medical Research Foundation, Oklahoma City, OK, ²University Hospitals Birmingham, Birmingham, United Kingdom, ³University of Oklahoma Health Sciences Center, Oklahoma City, OK, ⁴Stavanger University, Stavanger, Norway, ⁵Karolinska Institutet, Stockholm, Sweden, ⁶National Institutes of Health, Bethesda, MD, ⁷MH-Hannover, Hannover, Germany, ⁸University of Bergen, Bergen, Norway, ⁹RheumatologySA, Adelaide, Australia, ¹⁰Uppsala University, Uppsala, Sweden, ¹¹Paris-Saclay University, Rueil Malmaison, Ile-de-France, France, ¹²Center for Genomics and Oncological Research (GENYO), Granada, Spain, ¹³Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, United Kingdom, ¹⁴Medical University of South Carolina, Charleston, SC, ¹⁵Kyung Hee University, Seoul, Republic of Korea, ¹⁶Hanyang University Medical Center, Seoul, Republic of Korea
Background/Purpose: Dysregulated autophagy is implicated in systemic lupus erythematous (SLE) and Sjögren's disease (SjD), including dysregulated expression of Autophagy-related gene 5 (ATG5) and Autophagy Related…
Abstract Number: 0329 • ACR Convergence 2022
Scoring Personalized Molecular Portraits Identify Systemic Lupus Erythematosus Subtypes and Predict Individualized Drug Responses, Symptomatology and Disease Progression
Daniel Toro-Domínguez¹, Manuel Martinez-Bueno¹, Raúl López-Domínguez², Jordi Martorell-Marugán¹, Elena Carnero-Montoro¹, Guillermo Barturen¹, Daniel W. Goldman³, Michelle Petri³, Pedro Carmona-Sáez² and Marta Alarcon-Riquelme¹, ¹Center for Genomics and Oncological Research (GENYO), Granada, Spain, ²University of Granada, Granada, Spain, ³Johns Hopkins University School of Medicine, Division of Rheumatology, Baltimore, MD
Background/Purpose: Systemic Lupus Erythematosus is a complex autoimmune disease that leads to important worsening of quality of life and mortality. Flares appear unpredictably during the…
Abstract Number: 0935 • ACR Convergence 2022
Targeted Synovial Tissue RNA-Seq Coupled with Artificial Intelligence Accurately Predicts Early Rheumatoid Arthritis Patients Likely to Respond to CsDMARDs, Enriching CsDMARDs Response Rates and Enabling Early Identification of Patients Requiring Subsequent Biological Therapy
Giorgio CASABURI, Tyler O'Malley, Todd Holscher and Ming-Chou Lee, Exagen, Inc., Vista, CA
Background/Purpose: Rheumatoid arthritis (RA) is a chronic, inflammatory, systemic autoimmune disease, affecting the joints with varying severity. RA affects approximately 0.5/1% of adults in the…
Abstract Number: 1183 • ACR Convergence 2022
Functionally Distinct Fibroblast Populations in Systemic Sclerosis Skin Revealed by Explant Tissue Characterization and Single-cell RNAseq
Kristina Clark¹, Alice Cole², Shiwen Xu¹, Voon Ong³, Christopher Buckley⁴ and Chris Denton¹, ¹University College London, London, United Kingdom, ²Royal Free Hospital, London, United Kingdom, ³UCL Medical School Royal Free Campus, London, United Kingdom, ⁴University of Oxford, Oxford, United Kingdom
Background/Purpose: Traditional studies of skin fibroblasts in SSc focus on the early "migratory" fibroblast population derived from explant culture of skin biopsies. Single-cell RNAseq has…
Abstract Number: 2179 • ACR Convergence 2022
Spatial and Single-Cell Transcriptomics Identify Alcam+ Macrophage / CD6+ T-Cell Interactions and Accumulation of IgG2b+ Class-Switched Plasma Cells in Marco+ Medullary Sinuses of Joint-Draining Popliteal Lymph Nodes in TNF-Tg Mice with Advanced Arthritis
H. Mark Kenney¹, Yue Peng², Kiana Chen², Javier Rangel-Moreno², Elizabeth Pritchett², Jeffrey Fox², Benjamin Korman³, Jennifer Anolik², Lianping Xing⁴, Christopher Ritchlin⁵, Edward Schwarz² and Chia-Lung Wu², ¹University of Rochester Medical Center, Henrietta, NY, ²University of Rochester Medical Center, Rochester, NY, ³University of Rochester, Rochester, NY, ⁴University of Rochester Medical Center, Webster, NY, ⁵Allergy, Immunology and Rheumatology Division, University of Rochester Medical School, Canandaigua, NY
Background/Purpose: Severe inflammatory-erosive arthritis in tumor necrosis factor transgenic (TNF-Tg) mice is associated with B-cell translocation into sinuses of joint-draining popliteal lymph nodes (PLNs) via…
Abstract Number: 0334 • ACR Convergence 2022
Performance of Diagnosis Codes for Identification of Prevalent Lupus Nephritis Patients from Electronic Health Records
Zara Izadi¹, Alfredo Aguirre², Christine Anastasiou², Julia Kay³, Gabriela Schmajuk⁴ and Jinoos Yazdany⁵, ¹University of California San Francisco, San Francisco, CA, ²University of California, San Francisco, San Francisco, CA, ³UCSF, San Francisco, CA, ⁴UCSF / SFVA, San Francisco, CA, ⁵UCSF, San Rafael, CA
Background/Purpose: Real-world data could provide valuable information in the study of lupus nephritis (LN), if these cases could be reliably identified. A lack of ability…
Abstract Number: 0999 • ACR Convergence 2022
Differences in Chromatin Accessibility Pre- and Post-Induction Therapy in Pediatric Lupus
Joyce Hui-Yuen¹, Kaiyu Jiang², Susan Malkiel³, Betty Diamond³ and James Jarvis⁴, ¹North Shore LIJ Health System, Great Neck, NY, ²University at Buffalo, Buffalo, NY, ³Feinstein Institutes for Medical Research, Manhasset, NY, ⁴Department of Pediatrics, University at Buffalo Clinical and Translational Research Center, Buffalo, NY
Background/Purpose: Systemic lupus erythematosus (SLE) may be triggered by gene-environment interactions. Data are scarce on how epigenetic variance contributes to disease risk in pediatric SLE…
Abstract Number: 1250 • ACR Convergence 2022
Physiologic Adaptive Change of the Patellar and Achilles Tendons: Sensitivity to Change Detected by Computer Analysis of Sequential Static Images
CARLOS ANTONIO GUILLEN ASTETE, Africa Andreu Suarez and Marina Tortosa Cabanas, Ramon y Cajal University Hospital, Madrid, Spain
Background/Purpose: Ultrasound studies stratify the results of the evaluations in ordinal degrees of intensity of findings dependent on the evaluator's opinion. Computer analysis of static…
Abstract Number: 2211 • ACR Convergence 2022
Identification of Plasma Metabolomic Biomarkers of Juvenile Idiopathic Arthritis
Amar Kumar¹, Joshua Tartarian², Valentina Shakhnovich³, Carl Langefeld⁴, Daniel Lovell⁵, Susan Thompson⁶, Mara Becker⁷ and Ryan Funk⁸, ¹University of Kansas, Kansas City, KS, ²University of Kansas Medical Center, Kansas City, KS, ³University of Missouri-Kansas City School of Medicine & Children’s Mercy Kansas City, Kansas City, MO, ⁴Wake Forest School of Medicine, Winston Salem, NC, ⁵Cincinnati Children's Hospital Medical Center, Cincinnati, OH, ⁶Cincinnati Children's Hospital Medical Center/Univ of Cincinnati College of Medicine, Blue Ash, OH, ⁷Duke University Medical Center/Duke Clinical Research Institute, Durham, NC, ⁸University of Kansas, Leawood, KS
Background/Purpose: Identification of disease and therapeutic biomarkers remains a barrier to the early diagnosis of and initiation of effective therapy for juvenile idiopathic arthritis (JIA).…
Abstract Number: 0383 • ACR Convergence 2022
Analysis of the Performance of an Artificial Intelligence Algorithm for the Detection of Radiographic Sacroiliitis in an Independent Cohort of axSpA Patients Including Both Nr-axSpA and r-axSpA
Fabian Proft¹, Janis Vahldiek², Joeri Nicolaes³, Rachel Tham⁴, Bengt Hoepken⁵, Baran Ufuktepe⁶, Denis Poddubnyy¹ and Keno Kyrill Bressem², ¹Department of Gastroenterology, Infectious Diseases and Rheumatology, Charité – Universitätsmedizin Berlin, Berlin, Germany, ²Charité – Universitätsmedizin Berlin, Berlin, Germany, ³UCB Pharma, Anderlecht, Belgium, ⁴UCB Pharma, Slough, UK, Overland Park, KS, ⁵UCB Pharma, Monheim am Rhein, Germany, ⁶UCB Pharma A.S., Istanbul, Turkey
Background/Purpose: Conventional radiography of the sacroiliac joints is the first imaging method if axial spondyloarthritis (axSpA) is suspected. The presence of definite radiographic sacroiliitis is…
Abstract Number: 1059 • ACR Convergence 2022
Vision Transformer Assisting Rheumatologists in Screening for Capillaroscopy Changes in Systemic Sclerosis: An Artificial Intelligence Solution
Alexandru Garaiman¹, Farhad Nooralahzadeh², Carina Mihai¹, Nikitas Gkikopoulos¹, Nicolas Perez Gonzalez², Mike Becker¹, Oliver Distler¹, Michael Krauthammer³ and Britta Maurer⁴, ¹Department of Rheumatology, University Hospital Zurich, University of Zurich, Zürich, Switzerland, ²Department of Biomedical Informatics, University of Zurich, Zürich, Switzerland, ³Department of Quantitative Biomedicine, University of Zurich, Zürich, Switzerland, ⁴Department of Rheumatology and Immunology, University Hospital Bern, University of Bern, Bern, Switzerland
Background/Purpose: An accurate assessment of nailfold capillaroscopy (NFC) images has great importance in the diagnosis and prognosis of systemic sclerosis (SSc). To overcome some of…
Abstract Number: 1404 • ACR Convergence 2022
Machine Learning Model to Accurately Identify Rheumatoid Arthritis Patients Using Raw Electronic Health Record Data
Vinit Gilvaz¹, Anthony Reginato², Deepan Dalal³ and Brad Crough⁴, ¹Brown University, East Providence, RI, ²Brown University, Providence, RI, ³Brown University School of Medicine, Providence, RI, ⁴Brown Physicians Inc., Providence, RI
Background/Purpose: Patients with chronic medical conditions like rheumatoid arthritis (RA) have a wealth of clinical data stored within their electronic medical records (EMR). Artificial intelligence…

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