Abstracts tagged "Rheumatoid Factor"

Abstract Number: 2298 • 2013 ACR/ARHP Annual Meeting
Upper-Half Serum IgA (20+ TU/ml) and IgM (10+ IU/ml) Levels Significantly Predicted The Long-Term (mean 12 yrs) Onset Of Rheumatoid Arthritis When Combined, But Neither test Individually In Their Respective Full Ranges Of Values
Alfonse T. Masi¹, Azeem A. Rehman¹, Jean C. Aldag¹, Huaping Wang², Ned J. Goertzen³ and Marius C. Teodorescu⁴, ¹Medicine, University of Illinois College of Medicine at Peoria, Peoria, IL, ²Pediatrics, University of Illinois College of Medicine at Peoria, Peoria, IL, ³University of Illinois College of Medicine at Peoria, Peoria, IL, ⁴Microbiology, TheraTest Laboratories Inc, Lombard, IL
Background/Purpose: Serum rheumatoid factor (RF) is a major predictor of the new onset of rheumatoid arthritis (RA). In very early arthritis patients, higher titers…
Abstract Number: 2303 • 2013 ACR/ARHP Annual Meeting
Clinical Characteristics Of Rheumatoid Factor-Positive Or Negative Subsets Of Anti-Citrullinated Peptide/Protein Antibody-Negative Rheumatoid Arthritis
Ryosuke Hiwa¹, Koichiro Ohmura¹, Noriyuki Yamakawa¹, Moritoshi Furu², Chikashi Terao³, Ran Nakashima¹, Yoshitaka Imura⁴, Naoichiro Yukawa⁵, Hajime Yoshifuji¹, Motomu Hashimoto⁶, Hiromu Ito², Takao Fujii² and Tsuneyo Mimori^1,2, ¹Department of Rheumatology and Clinical Immunology, Graduate School of Medicine, Kyoto University, Kyoto, Japan, ²Department of the Control for Rheumatic Diseases, Graduate School of Medicine, Kyoto University, Kyoto, Japan, ³Center for Genomic Medicine, Kyoto University, Kyoto, Japan, ⁴Rheumatology and Clinical Immunology, Kyoto University Graduate School of Medicine, Kyoto, Japan, ⁵Department of Rheumatology and Clinical Immunology, Kyoto University Graduate School of Medicine, Kyoto, Japan, ⁶The Control for Rheumatic Diseases, Graduate School of Medicine, Kyoto University, Kyoto, Japan
Background/Purpose: Although anti-citrullinated peptide/protein antibody (ACPA) is a specific autoantibody for rheumatoid arthritis (RA), ~20% of RA are ACPA negative. It has been reported that…

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