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Seronegative arthritis

A L Fedele, L Petricca, B Tolusso, S Alivernini, S Canestri, C Di Mario, S L Bosello, G Ferraccioli, E Gremese
OBJECTIVES: To define baseline clinical and immunological characteristics [anti-citrullinated peptide antibodies (ACPAs), immunoglobulin M (IgM)- and IgA-rheumatoid factor (RF), and interleukin-6 (IL-6) levels] involved in determining baseline erosiveness, outcome, and radiographic progression among seropositive and seronegative early rheumatoid arthritis (ERA) patients. METHOD: The 408 ERA patients enrolled in the study were monitored every 3 months according to the treat-to-target strategy...
March 15, 2018: Scandinavian Journal of Rheumatology
Katy A Lloyd, Johanna Steen, Khaled Amara, Philip J Titcombe, Lena Israelsson, Susanna L Lundström, Diana Zhou, Roman A Zubarev, Evan Reed, Luca Piccoli, Cem Gabay, Antonio Lanzavecchia, Dominique Baeten, Karin Lundberg, Daniel L Mueller, Lars Klareskog, Vivianne Malmström, Caroline Grönwall
Autoreactive B cells have a central role in the pathogenesis of rheumatoid arthritis (RA), and recent findings have proposed that anti-citrullinated protein autoantibodies (ACPA) may be directly pathogenic. Herein, we demonstrate the frequency of variable-region glycosylation in single-cell cloned mAbs. A total of 14 ACPA mAbs were evaluated for predicted N-linked glycosylation motifs in silico, and compared to 452 highly-mutated mAbs from RA patients and controls. Variable region N-linked motifs (N-X-S/T) were strikingly prevalent within ACPA (100%) compared to somatically hypermutated (SHM) RA bone marrow plasma cells (21%), and synovial plasma cells from seropositive (39%) and seronegative RA (7%)...
March 7, 2018: European Journal of Immunology
Erika Chocholova, Tomas Bertok, Eduard Jane, Lenka Lorencova, Alena Holazova, Ludmila Belicka, Stefan Belicky, Danica Mislovicova, Alica Vikartovska, Richard Imrich, Peter Kasak, Jan Tkac
In this study, one hundred serum samples from healthy people and patients with rheumatoid arthritis (RA) were analyzed. Standard immunoassays for detection of 10 different RA markers and analysis of glycan markers on antibodies in 10 different assay formats with several lectins were applied for each serum sample. A dataset containing 2000 data points was data mined using artificial neural networks (ANN). We identified key RA markers, which can discriminate between healthy people and seropositive RA patients (serum containing autoantibodies) with accuracy of 83...
February 24, 2018: Clinica Chimica Acta; International Journal of Clinical Chemistry
Janine S Hähnlein, Reza Nadafi, Tineke de Jong, Tamara H Ramwadhdoebe, Johanna F Semmelink, Karen I Maijer, IJsbrand A Zijlstra, Mario Maas, Danielle M Gerlag, Teunis B H Geijtenbeek, Paul P Tak, Reina E Mebius, Lisa G M van Baarsen
BACKGROUND: Systemic autoimmunity can be present years before clinical onset of rheumatoid arthritis (RA). Adaptive immunity is initiated in lymphoid tissue where lymph node stromal cells (LNSCs) regulate immune responses through their intimate connection with leucocytes. We postulate that malfunctioning of LNSCs creates a microenvironment in which normal immune responses are not properly controlled, possibly leading to autoimmune disease. In this study we established an experimental model for studying the functional capacities of human LNSCs during RA development...
February 26, 2018: Arthritis Research & Therapy
Marlieke Molendijk, Johanna Mw Hazes, Erik Lubberts
It is believed that therapy for rheumatoid arthritis (RA) is the most effective and beneficial within a short time frame around RA diagnosis. This insight has caused a shift from research in patients with established RA to patients at risk of developing RA and recently diagnosed patients. It is important for improvement of RA therapy to understand when and what changes occur in patients developing RA. This is true for both seropositive and seronegative patients. Activation of the immune system as presented by autoantibodies, increased cytokine and chemokine production, and alterations within several immune cells occur during RA development...
2018: RMD Open
Linh Ngo, Eric Miller, Peter Valen, Elie Gertner
BACKGROUND: Novel immune checkpoint inhibitors have been often utilized for different types of malignancies as salvage therapy with varying success. One obstacle to immune checkpoint inhibitor use is the higher incidence of immune-mediated side effects that can prompt discontinuation of therapy. Remitting seronegative symmetrical synovitis with pitting edema has been described with immune checkpoint inhibitors only once previously. We report a case of a patient who developed remitting seronegative symmetrical synovitis with pitting edema related to immune checkpoint inhibitor therapy and stress that these symptoms can be managed without cessation of immune checkpoint inhibitor therapy...
February 26, 2018: Journal of Medical Case Reports
Alen Zabotti, Enzo Errichetti, Francesca Zuliani, Luca Quartuccio, Stefania Sacco, Giuseppe Stinco, Salvatore De Vita
OBJECTIVE: Exclusion of psoriatic skin/nail lesions is important in differentiating early seronegative rheumatoid arthritis (ERA) from early polyarticular psoriatic arthritis (EPsA) and such manifestations may go unnoticed in atypical or minimally expressed cases. The aim of this study is to assess the usefulness of integrated rheumatological-dermatological evaluation in highlighting dermatological lesions missed on rheumatological examination and to investigate the role of ultrasonography (US) and dermoscopy in improving the recognition of subclinical psoriatic findings...
February 15, 2018: Journal of Rheumatology
Farhad Babaie, Milad Hasankhani, Hamed Mohammadi, Elham Safarzadeh, Alireza Rezaiemanesh, Reza Salimi, Behzad Baradaran, Zohreh Babaloo
Ankylosing spondylitis (AS) is a type of arthritis that is referred to a group of chronic immune-mediated inflammatory diseases termed as seronegative spondyloarthropathies or spondyloarthritides. It typically affects the joints of the spinal and axial skeleton and exhibits common clinical features and genetic factors such as human leukocyte antigen class I allele HLA-B27, the Endoplasmic Reticulum Aminopeptidase 1 (ERAP1), and environmental factors such as microbial triggers. Although the precise etiopathogenic mechanisms that implicate the pathogenesis of AS have still remained to be clarified, the IL-23/IL-17 immune axis has been detected as an important factor in the immunopathogenesis of AS...
February 2, 2018: Immunology Letters
Ammar Haikal, E Borba, Taqui Khaja, Gary Doolittle, Paul Schmidt
Immune-related adverse events have been reported in patients treated with anti-programmed death-1 receptor drugs such as nivolumab. We present a case of a new-onset seronegative rheumatoid arthritis in a patient with metastatic melanoma treated with nivolumab.
January 2018: Avicenna Journal of Medicine
Trixy David, Stephanie Ling, Anne Barton
Immune-mediated inflammatory diseases (IMIDs) are characterised by dysregulation of the normal immune response, which leads to inflammation. Together, they account for a high disease burden in the population, given that they are usually chronic conditions with associated co-morbidities. Examples include systemic lupus erythematosus, rheumatoid arthritis, Crohn's disease and type 1 diabetes. Since the advent of genome-wide association studies, evidence of considerable genetic overlap in the loci predisposing to a wide range of IMIDs has emerged...
January 12, 2018: Clinical and Experimental Immunology
Alime Okkesim, Mehmet Zahit Adisen, Melda Misirlioglu
Psoriasis is a chronic, papulosquamous, and an inflammatory skin disease. It has been found that between 5% and 24% of patients develop psoriatic arthritis (PA) at the same time after or even prior to skin findings. The involvement of temporomandibular joint (TMJ) is a rare condition. In this report, a-46-year-old male patient was referred to our clinic with the complaint of pain in the bilateral TMJs, and a limited jaw movement. Medical anamnesis revealed he had psoriasis for the last 21 years, and developed a seronegative polyarthritis with destructive changes for 8 years...
November 2017: Nigerian Journal of Clinical Practice
Austin Nabet, Safi Faruqui, Christopher J Hogan
CASE: We present a case of rice-body formation and partial flexor tendon rupture in a 3-year-old child with seronegative juvenile idiopathic arthritis (JIA), which presented as a painless soft-tissue mass of the volar aspect of the hand. The diagnosis was not confirmed until histologic examination. The patient was managed with a tenosynovectomy and oral medication; he made a full recovery. CONCLUSION: JIA is one of the most common rheumatologic conditions of childhood...
April 2017: JBJS Case Connector
Ari Polachek, Wilma Vree Egberts, Elizabeth Fireman, Ido Druckman, Moshe Stark, Daphna Paran, Ilana Kaufman, Irena Wigler, David Levartovsky, Dan Caspi, Ger J M Pruijn, Ori Elkayam
OBJECTIVE: The aim of this study was to evaluate the presence of autoantibodies to cyclic citrullinated synthetic peptides (ACPAs) in the sputum of patients with long-standing rheumatoid arthritis (RA). METHODS: Nineteen consecutive RA patients and 16 age- and sex-matched control subjects participated in this cross-sectional study. All underwent complete lung function tests and provided induced sputum. Antibodies to citrullinated (CitP) and the corresponding norleucine-containing (NorP) peptides in the sputum of the RA patients and control subjects, as well as in the serum of the RA patients, were determined by enzyme-linked immunosorbent assay...
December 1, 2017: Journal of Clinical Rheumatology: Practical Reports on Rheumatic & Musculoskeletal Diseases
Hui Shi, Hui Zheng, Yu-Feng Yin, Qiong-Yi Hu, Jia-Lin Teng, Yue Sun, Hong-Lei Liu, Xiao-Bing Cheng, Jun-Na Ye, Yu-Tong Su, Xin-Yao Wu, Jin-Feng Zhou, Gary L Norman, Hui-Yun Gong, Xin-Ming Shi, Yi-Bing Peng, Xue-Feng Wang, Cheng-De Yang
BACKGROUND: The aim of the study was to determine the prevalence and clinical associations of antiphosphatidylserine/prothrombin antibodies (aPS/PT) with thrombosis and pregnancy loss in Chinese patients with antiphospholipid syndrome (APS) and seronegative APS (SNAPS). METHODS: One hundred and eighty six Chinese patients with APS (67 primary, 119 secondary), 48 with SNAPS, 176 disease controls (79 systemic lupus erythematosus [SLE], 29 Sjogren's syndrome [SS], 30 ankylosing spondylitis [AS], 38 rheumatoid arthritis [RA]) and 90 healthy donors were examined...
November 22, 2017: Clinical Chemistry and Laboratory Medicine: CCLM
Sarah M Labuda, John S Schieffelin, Jeffrey G Shaffer, Barbara M Stryjewska
Hansen's Disease (HD) is a rare, chronic granulomatous infection of the skin and peripheral nerves caused by the noncultivable organism Mycobacterium leprae . Arthritis is the third most common symptom of HD. Subjects with both confirmed HD on skin biopsy and chronic arthritis were identified at the National Hansen's Disease Program (NHDP). We conducted a series of medical chart reviews and extracted and logged personally deidentified data into a database and carried out descriptive analyses. Eighteen of 261 subjects presented to the NDHP with both HD and chronic arthritis between 2001 and 2015...
December 2017: American Journal of Tropical Medicine and Hygiene
John R Stack, Anne Madigan, Laura Helbert, Eimear Dunne, Elizabeth E Gardiner, Robert K Andrews, Roisin Finan, Elizabeth Smyth, Dermot Kenny, Geraldine M McCarthy
OBJECTIVES: Anti-citrullinated protein antibodies (ACPA) have been shown to cause platelet activation in vitro, through the low-affinity immunoglobulin G (IgG) receptor (FcγRIIa) on platelets. Platelet activation via engagement of FcγRIIa results in proteolytic cleavage and shedding of platelet specific glycoprotein VI (GPVI) which can be detected in the plasma as soluble GPVI (sGPVI). We hypothesized that plasma levels of sGPVI would be increased among patients with seropositive RA as a consequence of antibody-induced platelet activation and GPVI shedding...
2017: PloS One
Anastasia Skalkou, Sofia-Magdalini Manoli, Alexandros Sachinidis, Vasilios Ntouros, Konstantinos Petidis, Eleni Pagkopoulou, Efstratios Vakirlis, Athina Pyrpasopoulou, Theodoros Dimitroulas
Rheumatoid arthritis is a systemic autoimmune disease resulting in joint destruction and deformities, but also associated with extraarticular and systemic manifestations. The later devastating conditions, such as the development of rheumatoid vasculitis, are more frequently encountered in seropositive patients and their incidence has been attenuated after the introduction of biologic disease modifying drugs, such as anti-tumor necrosis factor alpha (TNFa) agents, which generally have considerably contributed to the better control and long-term outcomes of the disease...
January 2018: Rheumatology International
Jeffrey A Sparks, Tzu-Chieh Lin, Carlos A Camargo, Medha Barbhaiya, Sara K Tedeschi, Karen H Costenbader, Benjamin A Raby, Hyon K Choi, Elizabeth W Karlson
OBJECTIVE: We investigated whether RA increases risk for chronic obstructive pulmonary disease (COPD) or asthma independent of factors occurring before RA onset or mediating these respiratory morbidities after diagnosis, such as cigarette smoking. METHODS: Within the prospective Nurses' Health Study (n = 121,701 women; 1976-2014), we identified an incident RA cohort and matched each woman with RA to 10 comparators without RA by age and year at index date of RA diagnosis, excluding women with COPD or asthma at baseline...
September 18, 2017: Seminars in Arthritis and Rheumatism
Linda Johansson, Lisbeth Ärlestig, Heidi Kokkonen, Mikael Brink, Solbritt Rantapää-Dahlqvist
Objectives: RANK ligand (RANKL) is involved in destruction and osteoporosis in RA. In this study, the relationships between RANKL and ACPA, anti-carbamylated protein antibodies (anti-CarP), cytokines and chemokines were analysed in individuals before the onset of RA symptoms, and their associations with radiological findings at disease onset were assessed. Methods: This was a case-control study performed within the Medical Biobank of Northern Sweden that included 470 pre-symptomatic individuals [334 women and 136 men; mean (s...
December 1, 2017: Rheumatology
Kyle W Morse, Edwin P Su
INTRODUCTION: Modern metal-on-metal hip resurfacing arthroplasty has led to decreased revision rates and high implant survival rates as compared to prior generations of resurfacing. Many of the series that report on resurfacing outcomes focus upon patients treated with a diagnosis of osteoarthritis. Patients with inflammatory arthritis such as rheumatoid arthritis (RA) and ankylosing spondylitis (AS) are also treated in these series, however, their outcomes following resurfacing are underreported...
October 12, 2017: Hip International: the Journal of Clinical and Experimental Research on Hip Pathology and Therapy
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