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Rheumatoid arthritis biomarkers

Emilio Russo, Salvatore D'Angelo, Giorgio Ammerata, Ludovico Abenavoli, Daniele Mauro, Caterina Bruno, Saverio Naty, Ignazio Olivieri, Giovambattista De Sarro, Francesco Ursini
BACKGROUND: Recent evidence demonstrated a potential role of complement C3 as a candidate biomarker of cardiometabolic risk in the general population. OBJECTIVE: Aim of the present study was to investigate the correlation between complement C3 levels and comorbid type 2 diabetes (T2DM) in rheumatoid arthritis (RA) patients. METHODS: For the present study, 40 consecutive diabetic RA patients (RA/T2DM+ group) and 80 consecutive RA patients without diabetes (RA/T2DM- group) were recruited...
March 13, 2018: Reviews on Recent Clinical Trials
José Kennedy Amaral, Robert T Schoen
INTRODUCTION: Chronic chikungunya (CHIK) arthritis, an inflammatory arthritis, often follows acute CHIK fever (CHIKF), a viral infection. The pathogenesis of chronic CHIK arthritis is poorly characterized, but may resemble other forms of inflammatory arthritis. Clinically, chronic CHIK arthritis sometimes mimics rheumatoid arthritis (RA). CASE REPORT: We report a patient with well-characterized CHIKF followed 2 months later by chronic CHIK arthritis not only resembling RA clinically, but also associated with RA biomarkers and extra-articular features, including Felty's syndrome (FS)...
March 13, 2018: Rheumatology and Therapy
Yanhua Hu, Julie A Carman, Deborah Holloway, Selena Kansal, Li Fan, Christine Goldstine, Deborah Lee, John E Somerville, Robert Latek, Robert Townsend, Alyssa Johnsen, Sean Connolly, Somnath Bandyopadhyay, Nancy Shadick, Michael E Weinblatt, Richard Furie, Steven G Nadler
OBJECTIVE: To develop an objective, readily measurable pharmacodynamic biomarker of glucocorticoid (GC) activity. METHODS: Genes modulated by prednisolone were identified from in vitro studies using peripheral blood mononuclear cells from normal healthy volunteers (NHVs). Using the criteria of a >2-fold change relative to vehicle controls and an adjusted P value cutoff of <0.05, 64 upregulated and 18 downregulated genes were identified. A composite score of the upregulated genes was generated using a single-sample gene set enrichment analysis algorithm...
March 13, 2018: Arthritis & Rheumatology
Magdalena Kopec-Medrek, Eugene J Kucharz
BACKGROUND: Fibulin-3 (Fib-3) is a new potential biomarker of articular cartilage metabolism. OBJECTIVES: The aim of the study was to evaluate the effect of anti-TNF therapy on serum fibulin-3, cartilage oligomeric matrix protein (COMP), procollagen II C-propeptide (PIICP), and urinary C-terminal telopeptide of type II collagen (CTX-II) levels in relation to calprotectin (MRP8/14) and disease activity in rheumatoid arthritis patients. MATERIAL AND METHODS: In the study, 35 female patients with rheumatoid arthritis (RA) were investigated...
March 13, 2018: Advances in Clinical and Experimental Medicine: Official Organ Wroclaw Medical University
Li Yunchun, Wang Yue, Fang Zhong Jun, Su Qizhu, Ding Liumei
OBJECTIVES: To investigate the serum level of Myeloid-Related Protein 8/14 complex (MRP8/14) and to predict and monitor the response to biologic treatment in rheumatoid arthritis (RA) patients. METHODS: Each patient underwent clinical examination and blood sampling for assessment of serum high-sensitivity C-reactive protein (hs-CRP) levels, erythrocyte sedimentation rate (ESR), rheumatoid factors (RF), anti-cyclic citrullinated protein antibodies (anti-CCP), and serum concentrations of MRP8/14 protein complexes (myeloid-related proteins, MRP8/14) were measured at baseline, and weeks 4 and 12 (after initiation of treatment)...
January 2018: Annals of Clinical and Laboratory Science
Li Yang, Qing-Hua Zou, Yan Zhang, Yin Shi, Chun-Rong Hu, Cai-Xia Hui, Xiao-Fei Liu, Yong-Fei Fang
Rheumatoid arthritis (RA) patients may suffer from comorbid neuropsychiatric symptoms including mild cognitive impairment (MCI). Although comorbidity of MCI is common, there are currently no validated plasma biomarkers to aid MCI diagnosis. This study screened plasma from patients with RA with and without comorbid MCI to identify potential biomarkers useful in the differential diagnosis of comorbid MCI. Plasma samples were collected from patients with RA without comorbid MCI, with comorbid MCI, and from healthy controls...
March 10, 2018: Clinical Rheumatology
Nesa Jafari, Sonbol Nazeri, Sattar Tahmasebi Enferadi
BACKGROUND: Use of pharmaceutical agent for breast cancer chemotherapy is an interesting method that induces cells death by different way, such as apoptosis. Parthenolide is the main compound in feverfew that has been used to cure migraine and rheumatoid arthritis for long time. Parthenolide has been predominately investigated as inducer of apoptosis in human cancer cells. PURPOSE: We examined the expression of vimentin and Elongation factor α - 1 as breast cancer biomarkers in MCF7 cells exposure to Parthenolide...
March 1, 2018: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
Robby Engelmann, Sven Nekarda, Daniela Kuthning, Christian Kneitz, Brigitte Müller-Hilke
The treatment options for patients suffering from rheumatoid arthritis expanded over the last years. However, reliable biomarkers to guide therapy decisions are still warranted. Therefore, we here evaluated the value of antibodies against citrullinated peptide antigens (ACPA) IgG subclasses and peripheral blood antigen presenting cells as biomarkers to monitor and predict therapy response of patients with rheumatoid arthritis. Thirty-four ACPA-positive RA patients were enrolled and monitored for 3 months after therapy begin...
March 3, 2018: Clinical Rheumatology
Paul Emery, Gerd R Burmester, Esperanza Naredo, Yijie Zhou, Maja Hojnik, Philip G Conaghan
INTRODUCTION: The current American College of Rheumatology and European League Against Rheumatism treatment recommendations advise tapering biological disease-modifying antirheumatic drug (bDMARD) therapy in patients with rheumatoid arthritis (RA) who achieve stable clinical remission while receiving bDMARDs. However, not all patients maintain remission or low disease activity after tapering or discontinuation of bDMARDs. The aim of the Im P act of R esidual Inflammation Detected via Imaging T E chniques, D rug Levels and Patient Characteristics on the Outcome of Dose Taper I ng of Adalimumab in C linical Remission Rheumatoid Ar T hritis ( RA ) study, or PREDICTRA, is to generate data on patient and disease characteristics that may predict the clinical course of a fixed dose-tapering regimen with the bDMARD adalimumab...
February 28, 2018: BMJ Open
Mara Oleszowsky, Matthias F Seidel
Objective: Antinuclear antibodies (ANA) serve as screening tests for connective tissue diseases but have low specificity. In this pilot study, we aimed to identify patients with first-time positive ANA and musculoskeletal complaints and correlate serum soluble vascular adhesion molecules as biomarkers. Methods: Prospective, observational study with 100 ANA-positive patients, comparing them to age- and gender-matched healthy controls (HC, n = 75), was conducted. Serum levels of soluble intercellular adhesion molecule-1 (sICAM-1), endothelial-leukocyte adhesion molecule-1 (sELAM-1), and vascular cell adhesion molecule-1 (sVCAM-1) were measured...
2018: BioMed Research International
Ruohan Yu, Changhong Li, Lin Sun, Leilei Jian, Zhenzhen Ma, Jinxia Zhao, Xiangyuan Liu
Hypoxia is a prominent microenvironment feature in a range of disorders including cancer, rheumatoid arthritis (RA), atherosclerosis, inflammatory bowel disease (IBD), infection, and obesity. Hypoxia promotes biological functions of fibroblast-like synoviocytes via regulating hypoxia-inducible factor 1α (HIF1α). Dysregulated protein citrullination in RA drives the production of antibodies to citrullinated proteins, a highly specific biomarker of RA. However, the mechanisms promoting citrullination in RA are not yet fully elucidated...
February 27, 2018: Scandinavian Journal of Immunology
Stéphane Jaisson, Christine Pietrement, Philippe Gillery
Protein carbamylation refers to a nonenzymatic modification, which consists in the binding of isocyanic acid on protein functional groups. This reaction is responsible for the alteration in structural and functional properties of proteins, which participate in their molecular aging. Protein molecular aging is now considered a molecular substratum for the development of chronic and inflammatory diseases, including atherosclerosis, chronic kidney disease, or rheumatoid arthritis. As a consequence, carbamylation-derived products have been proposed as interesting biomarkers in various pathological contexts and appropriate analytical methods have been developed for their quantification in biological fluids...
2018: Advances in Clinical Chemistry
Natasja Stæhr Gudmann, Shintaro Hirata, Morten Asser Karsdal, Satoshi Kubo, Anne-Christine Bay-Jensen, Yoshiya Tanaka
OBJECTIVES: This prospective study aimed to use serological biomarkers for evaluation of, connective tissue turnover, in a population of 149 Japanese patients with rheumatoid arthritis (RA). It was aimed to investigate how the connective tissue was affected by treatment at follow-up after 1 year (+/- 6 weeks) with either methotrexate (n=23) alone, or in combination with: adalimumab (n=49), tofacitinib (n=27) or tocilizumab (n=50). METHODS: Clinical characteristics were collected and connective tissue turnover, was evaluated by 4 serological biomarkers: C1M and C3M reflect degradation of types I and III collagen in interstitial tissue; C4M, reflecting degraded type IV collagen of the basement membranes; and CRPM, a marker of degraded C-reactive protein...
February 14, 2018: Clinical and Experimental Rheumatology
Pernille Juhl, Christian S Thudium, Natasja S Gudmann, Morten A Karsdal, Anne-Christine Bay-Jensen, Anne Sofie Siebuhr
OBJECTIVES: The objective of this study was to examine the tissue degradation in response to anti-IL6 receptor treatment in rheumatoid arthritis (RA) patients which are anti-TNF-α inadequate responders. METHODS: RADIATE was a randomised, double-blinded, placebo-controlled, parallel-group, phase III trial. RA patients with previous inadequate response to anti-TNFα therapy (n=299) were randomly assigned to tocilizumab 4 or 8 mg/kg with methotrexate (10-25 mg weekly) or placebo with methotrexate...
January 31, 2018: Clinical and Experimental Rheumatology
Alessia Alunno, Onelia Bistoni, Federico Pratesi, Giuliana Maria Concetta La Paglia, Ilaria Puxeddu, Paola Migliorini, Roberto Gerli
Objectives: RA is an articular chronic inflammatory disease that in a subgroup of patients can also present with extra-articular manifestations (EAMs). Despite intense investigation on this topic, reliable biomarkers for EAMs are lacking. In recent years several ACPAs, including those targeting anti-citrullinated alpha enolase peptide-1 (anti-CEP-1), have been identified in patients with RA. Data about the ability of anti-CEP-1 to predict the development of erosive disease are confliciting and no evidence concerning their possible association with EAMs in RA is currently available...
February 14, 2018: Rheumatology
Ju Li, Nan Che, Lingxiao Xu, Qian Zhang, Qi Wang, Wenfeng Tan, Miaojia Zhang
Metabolomics has been applied to explore altered metabolite profiles in disease and identify unique metabolic signatures in recent years. We aim to characterize the metabolic profile of rheumatoid arthritis patients and explore its underlying pathological processes using metabolomics approach. Serum samples from 30 rheumatoid arthritis (RA) patients, 30 primary Sjogren's syndrome (pSS) patients, and 32 healthy controls (HC) were collected. The sample was analyzed by ultra-high-performance liquid chromatography coupled with high-resolution mass spectrometry (UPLC-HRMS)...
February 13, 2018: Clinical Rheumatology
Arthur M Mandelin, Philip J Homan, Alexander M Shaffer, Carla M Cuda, Salina T Dominguez, Emily Bacalao, Mary Carns, Monique Hinchcliff, Jungwha Lee, Kathleen Aren, Anjali Thakrar, Anna B Montgomery, S Louis Bridges, Joan M Bathon, John P Atkinson, David A Fox, Eric L Matteson, Christopher D Buckley, Costantino Pitzalis, Deborah Parks, Laura B Hughes, Laura Geraldino-Pardilla, Robert Ike, Kristine Phillips, Kerry Wright, Andrew Filer, Stephen Kelly, Eric M Ruderman, Vince Morgan, Hiam Abdala-Valencia, Alexander V Misharin, G Scott Budinger, Elizabeth T Bartom, Richard M Pope, Harris Perlman, Deborah R Winter
OBJECTIVE: Currently, there are no reliable biomarkers for predicting therapeutic response in patients with rheumatoid arthritis (RA). The synovium may unlock critical information for determining efficacy as reduction in numbers of sublining synovial macrophages remains the most reproducible biomarker. Thus, a clinically actionable method for collection of synovial tissue, which can be analyzed using high-throughput strategies, must become a reality. METHODS: Rheumatologists at six United States academic sites were trained in minimally invasive ultrasound-guided synovial tissue biopsy...
February 13, 2018: Arthritis & Rheumatology
Paola de Pablo, Dora Romaguera, Helena L Fisk, Philip C Calder, Anne-Marie Quirke, Alison J Cartwright, Salvatore Panico, Amalia Mattiello, Diana Gavrila, Carman Navarro, Carlotta Sacerdote, Paolo Vineis, Rosario Tumino, William E Ollier, Dominique S Michaud, Elio Riboli, Patrick J Venables, Benjamin A Fisher
OBJECTIVES: Findings relating to dietary intake of n-3 polyunsaturated fatty acids (PUFA) and risk of rheumatoid arthritis (RA) are mixed. Erythrocyte membrane PUFA is an accurate objective biomarker of PUFA status; however, there are little data on erythrocyte membrane PUFA and risk of RA. The objective was therefore to compare erythrocyte membrane PUFA between pre-RA individuals and matched controls from a population-based sample, and specifically to test the hypothesis that higher levels of longer chain n-3 PUFA are associated with lower risk of RA...
February 7, 2018: Annals of the Rheumatic Diseases
Yu-Hui Li, Ya-Ping Gao, Jie Dong, Lian-Jie Shi, Xiao-Lin Sun, Ru Li, Xue-Wu Zhang, Yu Liu, Li Long, Jing He, Qun-Jie Zhong, Eric Morand, Guang Yang, Zhan-Guo Li
BACKGROUND: Sjögren's syndrome (SS) is a primary autoimmune disease (pSS) or secondarily associated with other autoimmune diseases (sSS). The mechanisms underlying immune dysregulation in this syndrome remain unknown, and clinically it is difficult to diagnose owing to a lack of specific biomarkers. METHODS: We extracted immunoglobulins (Igs) from the sera of patients with sSS associated with rheumatoid arthritis (RA) and used them to screen a phage display library of peptides with random sequences...
February 12, 2018: Arthritis Research & Therapy
Cristina Municio, Ángeles Dominguez-Soto, Sara Fuentelsaz-Romero, Amalia Lamana, Nuria Montes, Víctor D Cuevas, Raquel García Campos, José L Pablos, Isidoro González-Álvaro, Amaya Puig-Kröger
OBJECTIVES: Methotrexate (MTX) is the anchor drug for treatment of rheumatoid arthritis (RA), but the mechanism of its anti-inflammatory action is not fully understood. In RA, macrophages display a proinflammatory polarisation profile that resembles granulocyte-macrophage colony-stimulating factor (GM-CSF)-differentiated macrophages and the response to MTX is only observed in thymidylate synthase+ GM-CSF-dependent macrophages. To determine the molecular basis for the MTX anti-inflammatory action, we explored toll-like receptor (TLR), RA synovial fluid (RASF) and tumour necrosis factor receptor (TNFR)-initiated signalling in MTX-exposed GM-CSF-primed macrophages...
February 3, 2018: Annals of the Rheumatic Diseases
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