Abstracts tagged "Diagnostic Tests"

Abstract Number: 1916 • 2015 ACR/ARHP Annual Meeting
Validation of Novel Biomarker Candidates for Systemic Sclerosis
Johannes Schulte-Pelkum¹, Petra Budde¹, Hans-Dieter Zucht¹, Daniel Wirtz¹, Peter Schulz-Knappe¹, Oliver Distler², Suzana Jordan³, Nicolas Hunzelmann⁴, Matthias Schneider⁵ and Britta Maurer², ¹Protagen AG, Dortmund, Germany, ²Division of Rheumatology, University Hospital Zurich, Zurich, Switzerland, ³Department of Rheumatology, University Hospital Zurich, Zurich, Switzerland, ⁴Department of Dermatology, University of Cologne, Cologne, Germany, ⁵Rheumatology, Heinrich-Heine-University, Duesseldorf, Germany
Background/Purpose: Systemic sclerosis (SSc) is a systemic autoimmune disease that manifests as progressive fibrosis of the skin and internal organs. SSc is associated with the…
Abstract Number: 2065 • 2015 ACR/ARHP Annual Meeting
Verification of Novel Soluble Biomarkers That Differentiate Patients with Psoriatic Arthritis from Those with Psoriasis without Psoriatic Arthritis
Vinod Chandran¹, Daniela Cretu^2,3, Lisa Gao⁴, Kun Liang⁴, Antoninus Soosaipillai³ and Eleftherios Diamandis^2,3,5, ¹Rheumatology, University of Toronto, Toronto Western Hospital, Toronto, ON, Canada, ²Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada, ³Department of Pathology and Laboratory Medicine, Mount Sinai Hospital, Toronto, ON, Canada, ⁴Department of Statistics and Actuarial Science, University of Waterloo, Waterloo, ON, Canada, ⁵Department of Clinical Biochemistry, University Health Network, Toronto, ON, Canada
Background/Purpose: There is a high prevalence of undiagnosed psoriatic arthritis (PsA) in psoriasis patients. Therefore identifying soluble biomarkers for PsA will help in screening psoriasis…
Abstract Number: 2190 • 2015 ACR/ARHP Annual Meeting
Antiphospholipid Syndrome Alliance for Clinical Trials and International Networking (APS ACTION) Core Laboratory Validation Exercise: Comparison of Enzyme-Linked Immunosorbant Assay (ELISA) and Chemiluminescence Immunoassay (CIA)
Maria Laura Bertolaccini¹, Danieli Andrade², Gabriella Lakos³, Rohan Willis⁴, Vittorio Pengo⁵, Alessandra Banzato⁶, Hannah Cohen⁷, Steven Krilis⁸, Doruk Erkan⁹ and on behalf of APS ACTION, ¹Lupus Unit, Rayne Institute, Lupus Research Unit, The Rayne Institute, King's College London School of Medicine, St Thomas' Hospital, London, United Kingdom, ²Rheumatology, University of São Paulo, São Paulo, Brazil, ³INOVA Diagnostics, Inc., San Diego, CA, ⁴Department of Internal Medicine, Antiphospholipid Standardization Laboratory, Division of Rheumatology, Galveston, TX, ⁵Clinical Cardiology, Department of Cardiac Thoracic and Vascular Sciences, University of Padova, Padova, Italy, ⁶Department of Cardiac Thoracic and Vascular Sciences, Department of Cardiac Thoracic and Vascular Sciences, University of Padua, Padua, Italy, ⁷Hematology., University College London, LOndon, United Kingdom, ⁸Immunology, Allergy, and Infectious Diseases, St George Hospital, Kogarah NSW, Australia, ⁹Rheumatology, Barbara Volcker Center for Women and Rheumatic Diseases: Hospital for Special Surgery, New York, NY
Background/Purpose: APS ACTION International Clinical Database and Repository was created to study the natural course of disease over 10 years in persistently aPL-positive patients with/without…
Abstract Number: 2231 • 2015 ACR/ARHP Annual Meeting
Vitamin D Deficiency States Can be Actively Prevented. Results from a Cross-Sectional Study of over 3000 Patients with Rheumatic Diseases
Elena Nikiphorou¹, Pekka Hannonen¹, Paula Väre¹, Arto Kokko², Tuomas Rannio^3,4 and Tuulikki Sokka-Isler⁴, ¹Jyvaskyla Central Hospital, Jyvaskyla, Finland, ²Jyvaskyla Central Hospital, Jyväskylä, Finland, ³Kuopio University Hospital, Kuopio, Finland, ⁴Rheumatology, Jyvaskyla Central Hospital, Jyvaskyla, Finland
Background/Purpose: Vitamin D (D25) deficiency has been an ongoing matter of concern, especially in countries at northern latitudes. The effects of D25 deficiency in patients…
Abstract Number: 2598 • 2015 ACR/ARHP Annual Meeting
Neutrophil Extracellular Trap Levels Measured By Cell Free Nucleosome ELISA in Serum Are Highly Specific and Sensitive for Rheumatoid Arthritis
Paul Hasler¹, Stavros Giaglis¹, Ulrich A. Walker², Erik Deman¹, Christoph Hemmeler¹, Christina Ryser¹, Samuel Kretzschmar¹, Guenther Schaefer³, Juliane Franz¹ and Sinuhe Hahn⁴, ¹Rheumatology, Kantonsspital Aarau, Aarau, Switzerland, ²Rheumatology, University Hospital, Basel, Basel, Switzerland, ³Dept. of Biomedicine, Laboratory of Prenatal Medicine, University Hospital Basel, Basel, Switzerland, ⁴Dept. of Biomedicine, Laboratory for Prenatal Medicine, University Hospital Basel, Basel, Switzerland
Background/Purpose: Rheumatoid factor (RF) or anti-citrullinated peptide antibody (ACPA) detection have limited clinical utility for the diagnosis of rheumatoid arthritis (RA), as the specificity and…
Abstract Number: 2614 • 2015 ACR/ARHP Annual Meeting
Single Academic Center Experience with 14-3-3 Eta in the Evaluation of Inflammatory Arthritis
Lance Feller¹, Paul Tuttle IV², Austin M. Dalrymple³, Srikanth Bathula⁴, Katherine Temprano⁵, Reema H. Syed⁶, Rama Bandlamudi⁷, Kathryn Coulson⁸, Peri Pepmueller⁹ and Terry Moore¹⁰, ¹Internal Medicine/Rheumatology, Saint Louis University, Saint Louis, MO, ²Saint Louis University, Saint Louis, MO, ³Pediatric Rheumatology, St. Louis University, St. Louis, MO, ⁴Rheumatology, Saint Louis University, Saint Louis, MO, ⁵Medicine/Rheumatology, Saint Louis University, St. Louis, MO, ⁶IM-Rheumatology, Saint Louis University, St. Louis, MO, ⁷Internal Medicine/Rheumatology, St. Louis Univ Health Sciences, St. Louis, MO, ⁸Rheumatology/ 213A, St. Louis University, St. Louis, MO, ⁹Rheumatology, Saint Louis University, St. Louis, MO, ¹⁰Division of Rheumatology and Pediatric Rheumatology, Saint Louis University School of Medicine, St Louis, MO
Background/Purpose: 14-3-3 proteins are chaperonins found in all eukaryotic cells. There are multiple isoforms which are thought to be involved in intracellular signaling and transcription…
Abstract Number: 101 • 2015 ACR/ARHP Annual Meeting
New Technologies for Typing Self-Identifying Antigens Encoded By HLA Genes Provide Cost-Effective Alternatives to Identifying B27 Allele Status in Rheumatoid Arthritis Subjects
Kimberly Robasky¹, Jatinder Kaur², Jennifer Sims¹, Melissa Howard¹, Eric Earley¹ and Eric Lai², ¹EA|Quintiles, Durham, NC, ²Takeda Pharmaceuticals International, Inc., Deerfield, IL
Background/Purpose: Human leukocyte antigen (HLA) genes code for proteins that allow the immune system to distinguish self from foreign cells. These genes have important indications…
Abstract Number: 2617 • 2015 ACR/ARHP Annual Meeting
Serum 14-3-3eta Protein Elevation in Osteoarthritis Suggests Misclassification or Concurrent Inflammatory Arthritis
Olga S. Zhukov¹, Jonnielyn G. Rivera¹, Rania W. Abolhosn¹, Robert J. Lagier², Charles M. Rowland³, Joanna M. Popov¹, Kaleb Michaud⁴ and Stanley J. Naides¹, ¹Immunology, Quest Diagnostics Nichols Institute, San Juan Capistrano, CA, ²Research Support, Alameda, Quest Diagnostics Alameda, Alameda, CA, ³Research Support, Quest Diagnostics Alameda, Alameda, CA, ⁴Rheumatology & Immunology, University of Nebraska Medical Center and National Data Bank, Omaha, NE
Background/Purpose: Tissue distribution of the chaperonin 14-3-3η (eta) is limited to synovial tissue and brain. Synovium releases proinflammatory 14-3-3η into synovial fluid and serum in…
Abstract Number: 292 • 2015 ACR/ARHP Annual Meeting
Neoepitope Biomarkers As Biomarkers of Polymyositis and Dermatomyositis and Functional Status
Anders Nedergaard¹, Kim Henriksen², Morten Asser Karsdal³, Wendy White⁴ and Xiang Guo⁴, ¹Institute of Sports Medicine Copenhagen, Bispebjerg Hospital, Copenhagen NW, Denmark, ²Nordic Bioscience, Biomarkers and Research, Herlev, Denmark, ³Biomarkers and Research, Nordic Bioscience, Herlev, Denmark, ⁴Translational Sciences, MedImmune, LLC, Gaithersburg, MD
Background/Purpose: Polymyositis (PM) and Dermatomyositis (DM) are inflammatory conditions characterized by persistent inflammation of muscle tissue (and for DM also skin). Myositis has been shown…
Abstract Number: 2653 • 2015 ACR/ARHP Annual Meeting
Diagnostic Value of the Prednisolone Test in Patients with Possible Rheumatoid Arthritis
Uta Kiltz¹, Christine von Zabern¹, Xenofon Baraliakos¹, Frank Heldmann¹, Bernhard Mintrop¹, Michael Sarholz¹, Martin van Werde¹, Claudia Klink², Dietmar Krause², Friedrich Dybowski³, Ludwig Kalthoff³, Liane Hein³ and Juergen Braun¹, ¹Rheumazentrum Ruhrgebiet, Herne, Germany, ²Private rheumatology office, Gladbeck, Germany, ³Private rheumatology office, Herne, Germany
Background/Purpose: In patients with tender and swollen finger joints, the differential diagnosis between rheumatoid arthritis (RA) and osteoarthritis (OA) of the hands can be initially…
Abstract Number: 405 • 2015 ACR/ARHP Annual Meeting
Anti-C1q Antibodies As Potential Diagnostic and Prognostic Biomarkers in Juvenile Systemic Lupus Erythematosus
Thaschawee Arkachaisri^1,2, Justin Hung Tiong Tan¹, Manasita Tanya¹, Sook Fun Hoh³, Lena Das⁴ and Jing Yao Leong^5,6, ¹Rheumatology and Immunology, KK Women's and Children's Hospital, Singapore, Singapore, ²Paediatrics, Duke-NUS Graduate Medical School, Singapore, Singapore, ³Nursing, KK Women's and Children's Hospital, Singapore, Singapore, ⁴Dept of Rheumatology, Cincinnati Children`s Hospital Medical Center, Cincinnati, OH, ⁵Duke-National University of Singapore Graduate Medical School, Singapore, Singapore, ⁶SingHealth Translational Immunology and Inflammation Centre, Singapore Health Services Pte Ltd, Singapore, Singapore
Background/Purpose: Anti-C1q antibodies (AC1q) were shown to strongly correlate with the occurrence and activity of lupus nephritis in adult SLE. Data of the antibodies in…
Abstract Number: 2695 • 2015 ACR/ARHP Annual Meeting
Th17 Cell Related Cytokines and Microarray Expression Profiles in Patients with Early Rheumatoid Arthritis
Youngkyun Kim¹, Kijun Lee², Hae-Rim Kim³, Sang Heon Lee⁴, Ji Hyeon Ju⁵ and HO-YOUN KIM⁶, ¹1Convergent Research Consortium for Immunologic Disease, The Catholic University of Korea, Seoul, South Korea, ²The Catholic University of Korea, Seoul, South Korea, ³Konkuk University Medical Center, Seoul, South Korea, ⁴Konkuk University Hospital, Seoul, South Korea, ⁵Division of Rheumatology, Department of Internal Medicine, College of Medicine, The Catholic University of Korea, Seoul, South Korea, ⁶Konkuk university hospital, Seoul, South Korea
Background/Purpose: The purpose of this study is to explore new biomarkers for early diagnosis of rheumatoid arthritis (RA). For better discrimination power, we especially investigated…
Abstract Number: 765 • 2015 ACR/ARHP Annual Meeting
Clinical Improvements in Systemic Lupus Erthematosus Are Correlated to Cellular and Soluble Biomarkers in Classical Complement Pathway
Chaim Putterman¹, Jill P. Buyon², Richard Furie³, Rosalind Ramsey-Goldman⁴, Kenneth Kalunian⁵, John Conklin⁶, Tyler O'Malley⁷, Derren Barken⁸ and Thierry Dervieux⁷, ¹Division of Rheumatology, Albert Einstein College of Medicine, Bronx, NY, ²NYU School of Medicine, New York, NY, ³NSLIJHS, Lake Success, NM, ⁴Northwestern University Feinberg School of Medicine, Chicago, IL, ⁵UCSD School of Medicine, La Jolla, CA, ⁶1261 Liberty Way Suite C, Exagen Diagnostics, Vista, CA, ⁷Research and Development, Exagen Diagnostics, Vista, CA, ⁸Exagen Diagnostics, Vista, CA
Background/Purpose : There is a need to identify biomarkers that track disease response in systemic lupus erythematosus (SLE). The value of various biomarkers in monitoring…
Abstract Number: 2917 • 2015 ACR/ARHP Annual Meeting
Combined Proliferative and Membranous Lupus Nephritis: Is the Prognosis Really Poor?
Ryota Sakai¹, Akiko Shibata¹, Kentaro Chino¹, Jun Kikuchi², Tsuneo Kondo¹, Ayumi Okuyama¹, Hirofumi Takei¹ and Koichi Amano¹, ¹Department of Rheumatology and Clinical Immunology, Saitama Medical Center, Saitama Medical University, Saitama, Japan, ²Rheumatology and Clinical Immunology, Saitama Medical Center, Saitama Medical University, Saitama, Japan
Background/Purpose: Using light microscopy (LM) or immunofluorescence (IF), combined proliferative and membranous lupus nephritis (LN) is defined as an active proliferative class III/IV lesion and…
Abstract Number: 767 • 2015 ACR/ARHP Annual Meeting
Estimating the Pre-Test Probability of Systemic Lupus Erythematosus By Utilizing Anti-Double Stranded DNA and Cell Bound Complement Activation Products Testing from Rheumatology Based Practices in the United States
Stuart L. Silverman¹, Derren Barken², John Conklin³, Claudia Ibarra⁴ and Thierry Dervieux⁵, ¹OMC Clinical Research Center, Beverly Hills, CA, ²Exagen Diagnostics, Vista, CA, ³1261 Liberty Way Suite C, Exagen Diagnostics, Vista, CA, ⁴Clinical Laboratory, Exagen Diagnostics, Vista, CA, ⁵Research and Development, Exagen Diagnostics, Vista, CA
Background/Purpose : Clinicians are aware that the interpretation of any clinical diagnostic test and post-test probability of disease is highly influenced by pre-test probability or…

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