Abstracts Archive - Page 1750 of 2607 - ACR Meeting Abstracts

Abstract Number: 2266 • 2016 ACR/ARHP Annual Meeting
A Melanocortin Fusion Peptide (AQB-565) Optimized for Melanocortin Receptor Engagement Significantly Reduces Inflammation in an In Vivo model of Acute Gout
Ronald Berenson¹, Maura-Ann Matthews¹, Wayne Wallis², Raj Dua¹, Margaret Moore¹, Robert Terkeltaub³ and Christopher Clegg^1,4, ¹Aequus BioPharma, Inc., Seattle, WA, ²Dyad Life Sciences, LLC, Seattle, WA, ³Medicine-Rheumatology, University of California, San Diego, La Jolla, CA, ⁴TRIA Bioscience, Seattle, WA
Background/Purpose: The melanocortins (MCs) are endogenous peptides (including ACTH, α-MSH and γ-MSH), which bind 5 G protein-coupled receptors (MCRs 1 through 5) with varying affinity.…
Abstract Number: 2267 • 2016 ACR/ARHP Annual Meeting
AMP-Activated Protein Kinase: A Target for Methotrexate in Macrophages
Cornelia Cudrici¹, Martin Pelletier² and Richard M. Siegel³, ¹NIAMS, Immunoregulation Section, Autoimmunity Branch, Bethesda, MD, ²Infectious and immune diseases Centre Hospitalier de l'Université Laval (CHUL) Québec, Québec, QC, Canada, ³National Institute of Arthritis and Musculoskeletal and Skin Diseases, Bethesda, MD
Background/Purpose: Methotrexate (MTX) remains a cornerstone of treatment in multiple forms of inflammatory arthritis, lupus and vasculitis. The anti-inflammatory effects of MTX are more likely…
Abstract Number: 2268 • 2016 ACR/ARHP Annual Meeting
Fructose Amplifies Inflammatory Potential in Human Monocytic Cells Via Reduction of AMP-Activated Protein Kinase Activity
Xihua Cao¹, Jeffrey N. Miner², Robert Terkeltaub^3,4 and Ru Liu-Bryan^1,4, ¹VA Medical Center, San Diego, CA, ²Discovery Biology, Ardea Biosciences, Inc., San Diego, CA, ³Rheumatology, VA Medical Center, San Diego, CA, ⁴Medicine-Rheumatology, University of California, San Diego, La Jolla, CA
Background/Purpose: High dietary content of fructose (in table sugar, sweetened sodas, energy beverages, and fruit juices) is a substantial risk factor for both hyperuricemia and…
Abstract Number: 2269 • 2016 ACR/ARHP Annual Meeting
Proteinaceous Amorphous Calcium Carbonates As a Novel Family of Crystals in Synovial Fluid from Symptomatic Joints
Bolan Li¹, Nora Singer^2,3 and Ozan Akkus^3,4, ¹Mechanical and Aerospace Engineering, Case Western Reserve University, Cleveland, OH, ²Medicine and Pediatrics, MetroHealth System, Cleveland, OH, ³Case Western Reserve University School of Medicine, Cleveland, OH, ⁴University Hospitals Case Medical Center, Cleveland, OH
Background/Purpose: There are many types of particulate matter in synovial fluid, and specific identification of these particles are challenging. We assessed synovial fluid samples from…
Abstract Number: 2270 • 2016 ACR/ARHP Annual Meeting
Inflammasome/IL-1β Activation Induced By Calcium Pyrophosphate Dihydrate Crystals Is Mainly Driven By a P2X7 Receptor-Independent Potassium Efflux
Laure Campillo-Gimenez¹, Félix Renaudin², Pierre Bobé³, Marjolaine Gosset⁴, Christèle Combes⁵, Martine Cohen-Solal^2,6, Frederic Lioté^2,6 and Hang-Korng Ea^2,6, ¹Hôpital Lariboisière, Centre Viggo Petersen, INSERM UMR1132, Paris Diderot University, Paris, France, ²INSERM UMR1132, Paris Diderot University, Paris, France, ³INSERM UMRS757, Paris Sud University, Orsay, France, ⁴EA2496, Paris Descartes University, Montrouge, France, ⁵ENSIACET, CIRIMAT, INPT-UPS-CNRS, Toulouse, France, ⁶AP-HP, Lariboisière Hospital, Rheumatology Department, Paris, France
Background/Purpose: Calcium pyrophosphate crystals including monoclinic and triclinic dihydrate phases (m- and t-CPPD) are found in 40% of end-stage osteoarthritis (OA) patients. Frequently asymptomatic, it…
Abstract Number: 2271 • 2016 ACR/ARHP Annual Meeting
Mutation in Osteoprotegerin Gene: Early-Onset Osteoarthritis and Chondrocalcinosis in a US Family of Italian/German Ancestry
Urooj Qazi¹, Charlene J. Williams², Mark L. Bernstein³, Aaron Charniak⁴, Amaryllis Ortiz², Ann K. Rosenthal⁵, Lucien Cardinal¹ and Alan T. Kaell¹, ¹Internal Medicine, SUNY Stony Brook Medicine-John T Mather Memorial Hospital, Port Jefferson, NY, ²Department of Biomedical Sciences, Cooper Medical School of Rowan University, Camden, NJ, ³Rheumatology, SUNY Stony Brook Medicine-John T Mather Memorial Hospital, Stony Brook, NY, ⁴SUNY Stony Brook Medicine-John T Mather Memorial Hospital, Port Jefferson, NY, ⁵Division of Rheumatology, Medical College of WI, Milwaukee, WI
Background/Purpose: Chondrocalcinosis is characterized by calcium pyrophosphate dihydrate (CPPD) deposition in articular cartilage. It can occur as a rare autosomal dominant disorder with florid early-onset…
Abstract Number: 2272 • 2016 ACR/ARHP Annual Meeting
The Influence of Genetic Variants on Renal Uric Acid Excretion in Response to Frusemide
Nicola Dalbeth¹, Jordyn de Kwant¹, Gregory Gamble², Amanda Phipps-Green³, Anne Horne², Robert Doughty¹, Lisa K. Stamp⁴ and Tony R. Merriman⁵, ¹University of Auckland, Auckland, New Zealand, ²Department of Medicine, University of Auckland, Auckland, New Zealand, ³University of Otago, Dunedin, New Zealand, ⁴University of Otago, Christchurch, New Zealand, ⁵Biochemistry Dept, PO Box 56, University of Otago, Dunedin, New Zealand
Background/Purpose: Diuretic use is strongly associated with development of hyperuricaemia and gout. Genetic variation in the renal uric acid transporters SLC2A9 (encoding GLUT9) and SLC22A11…
Abstract Number: 2273 • 2016 ACR/ARHP Annual Meeting
Trans-Ancestral Meta-Analysis Identifies Nine New Loci Associated with Serum Uric Acid Concentrations
James Boocock¹, Eli A. Stahl², David B. Mount³, Tony R. Merriman⁴, Hyon K. Choi⁵, Yukinori Okada⁶, Murray Cadzow¹ and Ruth Topless¹, ¹University of Otago, Dunedin, New Zealand, ²Divisions of Rheumatology and Genetics, Brigham and Women's Hospital, Boston, MA, ³Renal Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, ⁴Biochemistry Dept, PO Box 56, University of Otago, Dunedin, New Zealand, ⁵Rheumatology, Allergy, and Immunology, Massachusetts General Hospital, Harvard Medical School, Boston, MA, ⁶Osaka University, Osaka, Japan
Background/Purpose: Serum uric acid is an important biomarker for gout disease and kidney function. Genome-wide association study (GWAS) meta-analyses have identified 28 loci in…
Abstract Number: 2274 • 2016 ACR/ARHP Annual Meeting
Evidence of Phospho-Degron Regulating Expression of Urate Secretory Transporter ABCG2
Alexis Hofherr¹, Meng Li², Michael Kottgen¹ and Owen M. Woodward², ¹Nephrology, University of Freiburg Medical Center, Freiburg, Germany, ²Physiology, University of Maryland School of Medicine, Baltimore, MD
Background/Purpose: ABCG2 is a high capacity urate secretory transporter of the renal proximal tubule. The common Q141K ABCG2 mutation causes gout in humans through an…
Abstract Number: 2275 • 2016 ACR/ARHP Annual Meeting
Genome-Wide Association Study of Gout in New Zealand Polynesian People
Tanya Flynn¹, Ruth Topless¹, Murray Cadzow¹, Amanda Phipps-Green¹, Nick Burns¹, Nicola Dalbeth², Lisa K. Stamp³, Jennie Harre Hindmarsh⁴ and Tony R. Merriman⁵, ¹University of Otago, Dunedin, New Zealand, ²University of Auckland, Auckland, New Zealand, ³University of Otago, Christchurch, New Zealand, ⁴Ngati Porou Hauora Charitable Trust, Te Puia Springs, New Zealand, ⁵Biochemistry Dept, PO Box 56, University of Otago, Dunedin, New Zealand
Background/Purpose: The prevalence of gout in New Zealand Polynesian (Māori and Pacific) populations is approximately twice that of the New Zealand European population, with a…
Abstract Number: 2276 • 2016 ACR/ARHP Annual Meeting
Pleiotropic Effect of ABCG2 in Gout
Tony R. Merriman¹, Amanda Phipps-Green², James Boocock², Philip Riches³, Anne-Kathrin Tausche⁴, Timothy Radstake⁵, Matthijs Janssen⁶, Leo .A.B. Joosten⁷, Tim L Jansen⁸, Alexander So⁹, Jennie Harre Hindmarsh¹⁰, Lisa K. Stamp¹¹, Nicola Dalbeth¹² and Rebekah Wrigley², ¹Biochemistry Dept, PO Box 56, University of Otago, Dunedin, New Zealand, ²University of Otago, Dunedin, New Zealand, ³University of Edinburgh, Edinburgh, United Kingdom, ⁴Medizinische Klinik und Poliklinik III, Universitätsklinikum Carl Gustav Carus an der Technischen Universität Dresden, Dresden, Germany, ⁵Radboud University Nijmegen Medical Centre, Nijmegen, Netherlands, ⁶Department of Rheumatology, Rijnstate Hospital Arnhem, Arnhem, Netherlands, ⁷Internal Medicine, Radboud University Medical Center, Nijmegen, Netherlands, ⁸Rheumatology, Radboud University Medical Center, Nijmegen, Netherlands, ⁹Rheumatology Department, Lausanne University Hospital, Switzerland, Lausanne, Switzerland, ¹⁰Ngati Porou Hauora Charitable Trust, Te Puia Springs, New Zealand, ¹¹University of Otago, Christchurch, New Zealand, ¹²University of Auckland, Auckland, New Zealand
Background/Purpose: The ABCG2 Q141K (rs2231142) variant is an established cause of hyperuricaemia in Europeans. Although the effect size of ABCG2 rs2231142 on serum urate levels…
Abstract Number: 2277 • 2016 ACR/ARHP Annual Meeting
Exon Sequencing Reveals a Significant Burden of Non-Synonymous Variants in Both SLC22A11 (OAT4) and SLC22A12 (URAT1) in European Hyperuricemic Individuals
Tanya Flynn¹, James Boocock¹, Murray Cadzow¹, Ruth Topless¹, Amanda Phipps-Green¹, Nicola Dalbeth², Lisa K. Stamp³, David B. Mount⁴, Asim Mandal⁴, Hyon K. Choi⁵, Eli A. Stahl⁶ and Tony R. Merriman⁷, ¹University of Otago, Dunedin, New Zealand, ²University of Auckland, Auckland, New Zealand, ³University of Otago, Christchurch, New Zealand, ⁴Renal Division, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, ⁵Rheumatology, Allergy and Immunology, Massachusetts General Hospital and Harvard Medical School, Boston, MA, ⁶Divisions of Rheumatology and Genetics, Brigham and Women's Hospital, Boston, MA, ⁷Biochemistry Dept, PO Box 56, University of Otago, Dunedin, New Zealand
Background/Purpose: Common variants within the uric acid transporter genes SLC22A11 (OAT4) and SLC22A12 (URAT1) have been associated with hyperuricaemia and gout in multiple populations, but…
Abstract Number: 2278 • 2016 ACR/ARHP Annual Meeting
Precision of Gout Definitions for Population-Based Genetic Studies: Analysis of the UK Biobank
Murray Cadzow¹, Tony R. Merriman² and Nicola Dalbeth³, ¹University of Otago, Dunedin, New Zealand, ²Biochemistry Dept, PO Box 56, University of Otago, Dunedin, New Zealand, ³University of Auckland, Auckland, New Zealand
Background/Purpose : Accurate case-definition is important for epidemiological studies of gout. However, in multipurpose cohort studies frequently used for genome wide association studies, limited information…
Abstract Number: 2279 • 2016 ACR/ARHP Annual Meeting
Soluble Urate: A Direct Mediator of Bone Turnover?
Nicola Dalbeth¹, Bregina Pool², Ashika Chhana³, Jian-Ming Lin¹, Mei-Lin Tay¹, Paul Tan¹, Karen E. Callon¹, Dorit Naot³ and Jillian Cornish², ¹University of Auckland, Auckland, New Zealand, ²Department of Medicine, University of Auckland, Auckland, New Zealand, ³Medicine, University of Auckland, Auckland, New Zealand
Background/Purpose: Observational studies have reported that hyperuricemia may be protective in the development of osteoporosis. Serum urate concentrations positively correlate with bone density, and higher…
Abstract Number: 2280 • 2016 ACR/ARHP Annual Meeting
Monosodium Urate Crystal-Induced Inflammation Promotes Osteocyte Expression of Pro-Resorptive and Inflammatory Mediators: Implications for Erosive Gout
Ashika Chhana¹, Mei-Lin Tay², Bregina Pool³, Karen E. Callon², David Musson², Dorit Naot¹, Gregory Gamble³, Jillian Cornish³ and Nicola Dalbeth², ¹Medicine, University of Auckland, Auckland, New Zealand, ²University of Auckland, Auckland, New Zealand, ³Department of Medicine, University of Auckland, Auckland, New Zealand
Background/Purpose: Bone erosion in gout is strongly associated with tophi; lesions comprising of inflammatory cells surrounding collections of monosodium urate (MSU) crystals. Osteocytes are…

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