Abstracts tagged "microbiome"

Abstract Number: 2517 • ACR Convergence 2024
Skin Microbiome Shows Differences Between Pathergy Positive and Negative Patients with Behçet’s Syndrome
Betul Sarac¹, Ayse Kalkanci², Esra Kilic², Elif Ayca Sahin², Yesim Ozguler³ and Gulen Hatemi³, ¹Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, Department of Internal Medicine, Istanbul, Turkey, ²Gazi University, Faculty of Medicine, Department of Medical Microbiology, Ankara, Turkey, ³Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, Department of Internal Medicine, Division of Rheumatology, Istanbul, Turkey
Background/Purpose: Gut, oral and genital mucosa microbiome studies in Behçet’s syndrome have shown heterogeneous results including reduced bacterial diversity and decrease in butyrate-producing bacteria. A…
Abstract Number: 0066 • ACR Convergence 2024
Association Between Gut Microbiota, Inflammation, and Epigenetics in Rheumatoid Arthritis Patients
jose Manuel Lisbona-Montañez¹, Arkaitz Mucientes², Patricia Ruiz-Limón³, Gracia María Martín-Nuñez⁴, Rocio Redondo-Rodríguez⁴, Laura Cano-García⁴, Sara Manrique-Arija⁵, Isabel Moreno-Indias², Natalia Mena Vázquez⁶ and Antonio Fernández-Nebro⁷, ¹University of Malaga, Malaga, Andalucia, Spain, ²IBIMA Plataforma BIONAND, Malaga, Andalucia, Spain, ³IBIMA, Instituto de Biomedicina de Málaga, Cordoba, Spain, ⁴IBIMA Plataforma Bionand, Malaga, Spain, ⁵Biomedical Research Institute of Malaga (IBIMA)-Bionand Platform, Department of Rheumatology, Regional University Hospital of Malaga, Malaga, Spain, ⁶IBIMA, Málaga, Andalucia, Spain, ⁷Department of Rheumatology, Hospital Universitario de Málaga, Málaga, Andalucia, Spain
Background/Purpose: The etiology of rheumatoid arthritis (RA) is not entirely known. Epigenetic modifications could be the link between genetic and environmental factors related to the…
Abstract Number: 2536 • ACR Convergence 2024
Trans-Disease Microbial Biomarkers of Protection and Pathogenesis in Autoimmune Conditions: Results from the AMP AIM Consortium
Kevin Bu¹, Rebecca Blank², Adam Cantor¹, Alba Boix-Amoros³, Jose Scher⁴ and Jose Clemente¹, and Accelerating Medicines Partnership and Immune-Mediated Diseases Network (AMP AIM), ¹Icahn School of Medicine at Mount Sinai, New York, NY, ²NYU, New York, NY, ³Icahn School of Medicine, New York, NY, ⁴New York University School of Medicine, New York, NY
Background/Purpose: Autoimmune and immune-mediated diseases (AIMDs) affect over 20 million Americans. Although AIMDs have distinct symptomatology, there is significant overlap in their treatment, suggesting overlap…
Abstract Number: 0073 • ACR Convergence 2024
Self or Bacteria-reactive Th17 Expand from Conventional and Regulatory T Cells in Parabacteroides Goldsteinii Gnotobiotic Arthritic SKG Mice, in Context of Interferon-driven Synovial Inflammatory Macrophages and Reduced Bacterial Immune Regulation
Benjamin Cai¹, Zewen Kelvin Tuong², Mark Morrison¹, Anne-Sophie Bergot¹ and Ranjeny Thomas³, ¹Frazer Institute, University of Queensland, Brisbane, Australia, ²Child Health Research Centre, University of Queensland, South Brisbane, Queensland, Australia, ³University of Queensland, Brisbane, Australia
Background/Purpose: In ankylosing spondylitis, spondyloarthritis (SpA) is often associated with gut inflammation. The strong genetic association with HLA-B27 and expanded CD8 TCR public clonotypes implicate…
Abstract Number: 2541 • ACR Convergence 2024
Probiotic Modulation of Gut Microbiota Mitigates Early Rheumatoid Arthritis Progression: Insights from Pre-Clinical Models
Tong Wu¹, Yanhong Li², Yubin Luo¹ and Yi Liu³, ¹West China Hospital, Sichuan University, Cheng Du, China (People's Republic), ²West China School of Medicine and West China Hospital, Sichuan University, Cheng Du, Sichuan, China, ³West China Hospital of Sichuan University, Chengdu, Sichuan, China
Background/Purpose: Rheumatoid arthritis (RA) progression, categorized by EULAR into six stages, includes pre-clinical RA (Pre-RA)[1], where mucosal surfaces are implicated as initiators of autoimmune responses…
Abstract Number: 0778 • ACR Convergence 2023
The Effect of Probiotic Modulation of Enteral Dysbiosis on Disease Activity in Patients with Psoriatic Arthritis – A Randomized Controlled Trial
Anirudh Subramanian Muralikrishnan¹, Barbara Dreo², Angelika Lackner¹, Rusmir Husic³, Florentine Moazedi-Fuerst³, Josef Hermann⁴, Philipp Bosch¹, Johannes Fessler¹, Jens Thiel⁵ and Martin Stradner¹, ¹Medical University of Graz, Graz, Austria, ²Division of Rheumatology and Immunology, Medical University of Graz, Graz, Austria, ³Meduni Graz, Graz, Austria, ⁴Division of Rheumatology and Immunology, Department of Internal Medicine, Medical University Graz, Graz, Austria, ⁵University Hospital Freiburg, Freiburg, Germany
Background/Purpose: Psoriatic Arthritis (PsA) is a painful disease of the joints and spine. Recent studies have described enteric dysbiosis as a possible pathological mechanism in…
Abstract Number: 1785 • ACR Convergence 2023
Machine Learning Models Identify Gut Microbiota That Predict Chronicity in Reactive Arthritis
Prakashini MV¹, Soumendu Mahapatra², Krushna Chandra Murmu², Rasmita Mishra², Prasanta Padhan¹, Punit Prasad², Ramnath Misra³ and Sakir Ahmed⁴, ¹Kalinga Institute of Medical Sciences, KIIT University, Bhubaneswar, India, ²Institute of Life Sciences, Bhubaneswar, India, ³Kalinga Institute of Medical Sciences, KIIT University, Lucknow, India, ⁴Kalinga Institute of Medical Sciences, Bhubaneswar, India
Background/Purpose: Reactive arthritis (ReA) is the unique infection-triggered spondyloarthritis (SpA). Undifferentiated peripheral SpA (UpSpA) is similar but without previous infection, or psoriasis or inflammatory bowel…
Abstract Number: 0794 • ACR Convergence 2023
Microbiota-dependent Indole Production Is Required for the Development of Collagen-induced Arthritis
Brenda Seymour¹, Brandon Trent², Brendan Allen³, Sucai Liu³, Sunny Sneed⁴, Robert Anthony⁴ and kristine Kuhn³, ¹University of Colorado School of Medicine, Denver, CO, ²University of Colorado School of Medicine, Eugene, OR, ³University of Colorado School of Medicine, Aurora, CO, ⁴Harvard Medical School, Boston, MA
Background/Purpose: While alterations in tryptophan (Trp) metabolism have been broadly implicated across autoimmune diseases (including RA, SpA, SLE, and MS), the specific role(s) of Trp…
Abstract Number: 1786 • ACR Convergence 2023
Newly Identified Gut Commensal Clostridium Fessum AM100 for Treating Ankylosing Spondylitis
Lu Bai¹, Chengkai Zhu¹, Yihong Xu², Kunhai Tang¹, Dachun Zhuo¹, Qing Zhang¹, Chengchun Geng¹, Weidong Xu², Hao Wu¹, Xingdong Chen¹ and Jiucun Wang¹, ¹Fudan University, Shanghai, China, ²Changhai Hospital, Shanghai, China
Background/Purpose: Ankylosing spondylitis (AS) is an inflammatory disease of the spinal joints leading to progressive loss of spinal mobility and chronic pain. Gutdysbiosis has been…
Abstract Number: 0829 • ACR Convergence 2023
Decreased History of Breastfeeding During Infancy in Juvenile Spondyloarthritis: A Case-Control Study
Katelyn Baggett¹, Timothy G. Brandon², Rui Xiao³ and Pamela F. Weiss⁴, ¹Penn State College of Medicine, Newtown Square, PA, ²Children's Hospital of Philadelphia, Philadelphia, PA, ³Department of Pediatrics Division of Biostatistics, Children's Hospital of Philadelphia, Philadelphia, PA, ⁴Children's Hospital of Philadelphia, Philadelphia, PA
Background/Purpose: The pathogenesis of juvenile spondyloarthritis (JSpA) is multifactorial, and includes a genetic predisposition of the HLA-B27 allele, and environmental exposures such as the microbiome.…
Abstract Number: 2125 • ACR Convergence 2023
Comparing the ITIS Diet and the Mediterranean Diet in Rheumatoid Arthritis: Preliminary Findings on Clinical and Microbiome Outcomes
Marta Sala Climent¹, Martha Cedeno¹, Roxana Coras², Tiffany Holt¹, Soo-In Choi³, Abha Singh⁴, Katherine Nguyen Nguyen⁵, Susan Lee¹, Simone Zuffa Zuffa¹, Meritxell Agustin-Perez¹, Marta Fernandez-Bustamante¹, Shahrokh Golshan¹, Arthur Kavanaugh⁶ and Monica Guma⁵, ¹University of California San Diego, San Diego, CA, ²Cedars-Sinai Medical Center, Los Angeles, CA, ³University of California San Diego, Alicante, CA, ⁴Department of Medicine, University of California San Diego, La Jolla, CA, ⁵University of California San Diego, La Jolla, CA, ⁶University of California San Diego, School of Medicine, Riverside, CA
Background/Purpose: Rheumatoid arthritis (RA) is a chronic condition characterized by persistent joint inflammation, functional impairment, and disability. Adhering to a Western diet has been associated…
Abstract Number: 0851 • ACR Convergence 2023
Lupus Nephritis Flares Linked to Platelet Activation During Gut Pathobiont Blooms
Abhimanyu Amarnani¹, Doua Azzouz², MacIntosh Cornwell³, David Mieles³, Peter Izmirly⁴, Jill Buyon⁵, Kelly Ruggles⁶ and Gregg Silverman⁵, ¹NYU Langone Medical Center, New York, NY, ²NYU Langone Health ( School of medicine), New York, NY, ³New York University, New York, NY, ⁴New York University School of Medicine, New York, NY, ⁵NYU Grossman School of Medicine, New York, NY, ⁶NYU Langone, New York, NY
Background/Purpose: Systemic lupus erythematosus (SLE) is associated with gut microbiota dysbiosis, and community imbalance can coincide with flares of Lupus nephritis (LN). Herein, we sought…
Abstract Number: 2177 • ACR Convergence 2023
Characterization of Crevicular Fluid Microbiota in Primary Sjögren’s Syndrome
Gabriela Hernandez-Molina¹, Alberto Lopez-Reyes², Carlos Hernandez-Hernandez³, Vanessa Ruiz³, Amaya Llorente-Chavez⁴, Vanessa Saavedra-González⁴, Luis llorente⁴ and Gabriela Martínez-Nava², ¹Department of Immunology and Rheumatology, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico, ²Laboratorio de Gerociencias, Instituto Nacional de Rehabilitación Luis Guillermo Ibarra Ibarra, Mexico City, Mexico, ³Servicio Dental. Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico, ⁴Departamento de Inmunología y Reumatología, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City, Mexico
Background/Purpose: To describe the taxonomic composition of the microbiota in the crevicular fluid of patients with primary Sjögren's syndrome (PSS), and to assess their association…
Abstract Number: 0927 • ACR Convergence 2023
A Complex Interplay Among Gut Lachnoclostidium, HLA Haplotype DRB1*07:01, and the TNF Superfamily in Anti-Ro+ Women with a Spectrum of Preclinical and Clinical Autoimmunity Whose Children Have Neonatal Lupus
Robert Clancy¹, Caroline Izmirly¹, Miranda Marion², Nicola Fraser¹, Joel Guthridge³, Timothy Howard², Peter Izmirly⁴, Mala Masson⁵, Jill Buyon¹, Judith James³ and Carl Langefeld⁶, ¹NYU Grossman School of Medicine, New York, NY, ²Wake Forest University, Winston-Salem, NC, ³Oklahoma Medical Research Foundation, Oklahoma City, OK, ⁴New York University School of Medicine, New York, NY, ⁵New York University, New York, NY, ⁶Wake Forest University School of Medicine, Winston-Salem, NC
Background/Purpose: Mothers of children with neonatal lupus (NL) are often clinically asymptomatic or have insufficient criteria for a formal rheumatologic diagnosis, despite having high titers…
Abstract Number: 2434 • ACR Convergence 2023
Acetylated Bacterial Proteins as Potent Antigens Inducing an Anti-modified Protein Antibody Response
Mikhail Volkov, Arieke Kampstra, Karin van Schie, Joanneke Kwekkeboom, Arnoud de Ru, Peter van Veelen, Thomas Huizinga, René Toes and Diane van der Woude, Leiden University Medical Center, Leiden, Netherlands
Background/Purpose: Gut-residing bacteria, such as E.coli, can acetylate their proteome under conditions of amine starvation. It is postulated that the (gut) microbiome is involved in…

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