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Arthritis Research & Therapy

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https://www.readbyqxmd.com/read/28738907/rig-i-expression-in-perifascicular-myofibers-is-a-reliable-biomarker-of-dermatomyositis
#1
Xavier Suárez-Calvet, Eduard Gallardo, Iago Pinal-Fernandez, Noemi De Luna, Cinta Lleixà, Jordi Díaz-Manera, Ricardo Rojas-García, Ivan Castellví, M Angeles Martínez, Josep M Grau, Albert Selva-O'Callaghan, Isabel Illa
BACKGROUND: Dermatomyositis (DM) is inflammatory myopathy or myositis characterized by muscle weakness and skin manifestations. In the differential diagnosis of DM the evaluation of the muscle biopsy is of importance among other parameters. Perifascicular atrophy in the muscle biopsy is considered a hallmark of DM. However, perifascicular atrophy is not observed in all patients with DM and, conversely, perifascicular atrophy can be observed in other myositis such as antisynthetase syndrome (ASS), complicating DM diagnosis...
July 24, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28738887/emerging-technologies-in-autoantibody-testing-for-rheumatic-diseases
#2
REVIEW
Nancy J Olsen, May Y Choi, Marvin J Fritzler
Testing for the presence of antinuclear antibodies (ANAs) is a key step in the diagnosis of systemic lupus erythematosus (SLE) and other systemic autoimmune rheumatic diseases (SARD). The standard slide-based indirect immunofluorescence (IIF) test is widely used, but is limited by a relative lack of specificity for SLE and not all SARD-ANAs are detected. Alternative immunoassays that might offer enhanced diagnostic and prognostic information have evolved, and some of these have entered clinical practice. This review summarizes the current state of ANA testing and multiplex techniques for detecting other autoantibodies, the possibility of point-of-care testing, and approaches for applications in early disease stages...
July 24, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28738835/incidence-of-and-risk-factors-for-nephrolithiasis-in-patients-with-gout-and-the-general-population-a-cohort-study
#3
A J Landgren, L T H Jacobsson, U Lindström, T Z S Sandström, P Drivelegka, L Björkman, E Fjellstedt, M Dehlin
BACKGROUND: Nephrolithiasis (NL) is known to be associated with gout, although there are few comparative studies on risk and risk factors for NL in gout compared to population cohorts. In this cohort study we investigated: (1) overall incidence of NL in gout (cases) and general population controls; (2) risk and risk factors (common comorbidities and medications) for first-time NL in cases and controls separately. METHODS: Cases (n = 29,968) and age-matched and sex-matched controls (n = 138,678) were identified from the regional healthcare database in western Sweden (VEGA)...
July 24, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28732526/ultrasonography-and-dual-energy-computed-tomography-provide-different-quantification-of-urate-burden-in-gout-results-from-a-cross-sectional-study
#4
Tristan Pascart, Agathe Grandjean, Laurène Norberciak, Vincent Ducoulombier, Marguerite Motte, Hélène Luraschi, Marie Vandecandelaere, Catherine Godart, Eric Houvenagel, Nasser Namane, Jean-François Budzik
BACKGROUND: Ultrasonography (US) and dual-energy computed tomography (DECT) can assess urate burden in gout. The objective of this study was to compare the quantification of urate deposition provided by US to the one provided by DECT. METHODS: Patients with a diagnosis of gout were prospectively recruited to undergo quantification of urate deposition using US and DECT. US examination for tophi and the double contour (DC) sign was performed on the knees and feet and corresponding DECT scans provided volumes of tophi and of overall urate deposition...
July 21, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28728606/levels-of-serum-biomarkers-from-a-two-year-multicentre-trial-are-associated-with-treatment-response-on-knee-osteoarthritis-cartilage-loss-as-assessed-by-magnetic-resonance-imaging-an-exploratory-study
#5
Johanne Martel-Pelletier, Jean-Pierre Raynauld, François Mineau, François Abram, Patrice Paiement, Philippe Delorme, Jean-Pierre Pelletier
BACKGROUND: There is an obvious need to identify biomarkers that could predict patient response to an osteoarthritis (OA) treatment. This post hoc study explored in a 2-year randomized controlled trial in patients with knee OA, the likelihood of some serum biomarkers to be associated with a better response to chondroitin sulfate in reducing cartilage volume loss. METHODS: Eight biomarkers were studied: hyaluronic acid (HA), C reactive protein (CRP), adipsin, leptin, N-terminal propeptide of collagen IIα (PIIANP), C-terminal crosslinked telopeptide of type I collagen (CTX-1), matrix metalloproteinase-1 (MMP-1), and MMP-3...
July 20, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28728599/a-phase-iii-randomized-two-armed-double-blind-parallel-active-controlled-and-non-inferiority-clinical-trial-to-compare-efficacy-and-safety-of-biosimilar-adalimumab-cinnora%C3%A2-to-the-reference-product-humira%C3%A2-in-patients-with-active-rheumatoid-arthritis
#6
Ahmadreza Jamshidi, Farhad Gharibdoost, Mahdi Vojdanian, Soosan G Soroosh, Mohsen Soroush, Arman Ahmadzadeh, Mohammad Ali Nazarinia, Mohammad Mousavi, Hadi Karimzadeh, Mohammad Reza Shakibi, Zahra Rezaieyazdi, Maryam Sahebari, Asghar Hajiabbasi, Ali Asghar Ebrahimi, Najmeh Mahjourian, Amin Mohammadinejad Rashti
BACKGROUND: This study aimed to compare efficacy and safety of test-adalimumab (CinnoRA®, CinnaGen, Iran) to the innovator product (Humira®, AbbVie, USA) in adult patients with active rheumatoid arthritis (RA). METHODS: In this randomized, double-blind, active-controlled, non-inferiority trial, a total of 136 patients with active RA were randomized to receive 40 mg subcutaneous injections of either CinnoRA® or Humira® every other week, while receiving methotrexate (15 mg/week), folic acid (1 mg/day), and prednisolone (7...
July 20, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28728567/settings-and-artefacts-relevant-for-doppler-ultrasound-in-large-vessel-vasculitis
#7
REVIEW
L Terslev, A P Diamantopoulos, U Møller Døhn, W A Schmidt, S Torp-Pedersen
Ultrasound is used increasingly for diagnosing large vessel vasculitis (LVV). The application of Doppler in LVV is very different from in arthritic conditions. This paper aims to explain the most important Doppler parameters, including spectral Doppler, and how the settings differ from those used in arthritic conditions and provide recommendations for optimal adjustments. This is addressed through relevant Doppler physics, focusing, for example, on the Doppler shift equation and how angle correction ensures correctly displayed blood velocity...
July 20, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28728565/identification-of-differential-co-expressed-gene-networks-in-early-rheumatoid-arthritis-achieving-sustained-drug-free-remission-after-treatment-with-a-tocilizumab-based-or-methotrexate-based-strategy
#8
Xavier M Teitsma, Johannes W G Jacobs, Michal Mokry, Michelle E A Borm, Attila Pethö-Schramm, Jacob M van Laar, Johannes W J Bijlsma, Floris P J Lafeber
BACKGROUND: Methotrexate is endorsed to be used as first-line treatment in rheumatoid arthritis (RA). However, a large proportion of patients need additional treatment with a biological disease-modifying anti-rheumatic drug (DMARD) to adequately suppress their disease activity. A better understanding of genotypes could help to distinguish between patients with different pathogenic mechanisms. The aim of this study was therefore to identify networks of genes within DMARD-naive early RA patients associated with achieving sustained drug-free remission (sDFR) after initiating tocilizumab plus methotrexate, tocilizumab, or methotrexate therapy...
July 20, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28724445/sustained-benefit-from-combined-plasmapheresis-and-allogeneic-mesenchymal-stem-cells-transplantation-therapy-in-systemic-sclerosis
#9
Huayong Zhang, Jun Liang, Xiaojun Tang, Dandan Wang, Xuebing Feng, Fan Wang, Bingzhu Hua, Hong Wang, Lingyun Sun
BACKGROUND: Systemic sclerosis (SSc) is an autoimmune disease involving the skin and several internal organs. Most therapies available for this disease are symptomatic. Given the difficulty in treating SSc, we conducted this study to investigate the effect of combined plasmapheresis (PE) and allogeneic mesenchymal stem cells transplantation (MSCT) therapy on SSc. METHODS: Fourteen patients underwent three repeated PE treatments with subsequent pulse cyclophosphamide on days 1, 3 and 5...
July 19, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28724442/impact-of-obesity-on-the-response-to-tumor-necrosis-factor-inhibitors-in-axial-spondyloarthritis
#10
Raphael Micheroli, Monika Hebeisen, Lukas M Wildi, Pascale Exer, Giorgio Tamborrini, Jürg Bernhard, Burkhard Möller, Pascal Zufferey, Michael J Nissen, Almut Scherer, Adrian Ciurea
BACKGROUND: Few studies have investigated the impact of obesity on the response to tumor necrosis factor inhibitors (TNFi) in patients with axial spondyloarthritis (axSpA). The aim of our study was to investigate the impact of different body mass index (BMI) categories on TNFi response in a large cohort of patients with axSpA. METHODS: Patients with axSpA within the Swiss Clinical Quality Management (SCQM) program were included in the current study if they fulfilled the Assessment in Spondyloarthritis International Society (ASAS) criteria for axSpA, started a first TNFi after recruitment, and had available BMI data as well as a baseline and follow-up visit at 1 year (±6 months)...
July 19, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28724439/genetic-deficiency-of-wnt5a-diminishes-disease-severity-in-a-murine-model-of-rheumatoid-arthritis
#11
Susan MacLauchlan, Maria A Zuriaga, José J Fuster, Carla M Cuda, Jennifer Jonason, Fernanda Behzadi, Jennifer Parker Duffen, G Kenneth Haines, Tamar Aprahamian, Harris Perlman, Kenneth Walsh
BACKGROUND: Rheumatoid arthritis (RA) is a common autoimmune disease characterized by chronic inflammation of the joints, leading to bone erosion and joint dysfunction. Despite the recent successes of disease-modifying anti-rheumatic drugs (DMARDs), there is still clinical need for understanding the development and molecular etiology of RA. Wnts are developmental morphogens whose roles in adult pathology are poorly characterized. Wnt5a is a member of the non-canonical family of Wnts that modulates a wide range of cell processes, including differentiation, migration, and inflammation...
July 19, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28724396/pathogenic-roles-of-cxcl10-signaling-through-cxcr3-and-tlr4-in-macrophages-and-t-cells-relevance-for-arthritis
#12
Jong-Ho Lee, Bongjun Kim, Won Jong Jin, Hong-Hee Kim, Hyunil Ha, Zang Hee Lee
BACKGROUND: Rheumatoid arthritis (RA) is a chronic autoimmune disease characterized by uncontrolled joint inflammation and destruction of bone and cartilage. We previously reported that C-X-C motif chemokine 10 (CXCL10; also called IP-10) has important roles in joint inflammation and bone destruction in arthritis. However, the specific mechanisms by which CXCL10 regulates the recruitment of inflammatory cells and the production of osteoclastogenic cytokines in RA progression are not fully understood...
July 19, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28683836/the-myth-of-loss-of-angiogenesis-in-systemic-sclerosis-a-pivotal-early-pathogenetic-process-or-just-a-late-unavoidable-event
#13
EDITORIAL
Marco Matucci-Cerinic, Mirko Manetti, Cosimo Bruni, Ines Chora, Silvia Bellando-Randone, Gemma Lepri, Amato De Paulis, Serena Guiducci
Systemic sclerosis is considered a disease dominated by a "loss of angiogenesis", although in its early phases evidence indicates a disturbed angiogenic response only. In fact, microvascular changes are primarily due to endothelial cell injury, triggering downstream significant enlargement of the capillary in an inflammatory environment, followed by capillary rupture (microhemorrhages). Subsequent pro-angiogenic efforts lead to an aberrant angiogenesis and, eventually, to a total loss of vessel repair and regeneration (loss of angiogenesis)...
July 6, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28679452/interaction-of-the-gckr-and-a1cf-loci-with-alcohol-consumption-to-influence-the-risk-of-gout
#14
Humaira Rasheed, Lisa K Stamp, Nicola Dalbeth, Tony R Merriman
BACKGROUND: Some gout-associated loci interact with dietary exposures to influence outcome. The aim of this study was to systematically investigate interactions between alcohol exposure and urate-associated loci in gout. METHODS: A total of 2792 New Zealand European and Polynesian (Māori or Pacific) people with or without gout were genotyped for 29 urate-associated genetic variants and tested for a departure from multiplicative interaction with alcohol exposure in the risk of gout...
July 5, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28679449/abatacept-reduces-synovial-regulatory-t-cell-expression-in-patients-with-psoriatic-arthritis
#15
Agnes Szentpetery, Eric Heffernan, Martina Gogarty, Lisa Mellerick, Janet McCormack, Muhammad Haroon, Musaab Elmamoun, Phil Gallagher, Genevieve Kelly, Aurelie Fabre, Brian Kirby, Oliver FitzGerald
BACKGROUND: The aim was to study changes in immunohistochemical expression markers of synovial and skin inflammation, clinical outcomes and magnetic resonance imaging (MRI) scores with abatacept treatment in patients with psoriatic arthritis (PsA). METHODS: Biological-treatment-naïve PsA patients with active disease including synovitis of a knee were enrolled in this single-centre, crossover study. Patients were randomised to receive intravenous abatacept 3 mg/kg of body weight or placebo infusion on day 1, 15 and 29; thereafter abatacept 10 mg/kg of body weight was administered every 28 days for 5 months...
July 5, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28679445/coculture-of-bovine-cartilage-with-synovium-and-fibrous-joint-capsule-increases-aggrecanase-and-matrix-metalloproteinase-activity
#16
Per Swärd, Yang Wang, Maria Hansson, L Stefan Lohmander, Alan J Grodzinsky, André Struglics
BACKGROUND: A hallmark of osteoarthritis is increased proteolytic cleavage of aggrecan. Cross talk between cartilage and the synovium + joint capsule (SJC) can drive cartilage degradation by activating proteases in both tissues. We investigated aggrecan proteolysis patterns in cartilage explants using a physiologically relevant explant model of joint injury combining cartilage mechanical compression and coincubation with SJC. METHODS: Bovine cartilage explants were untreated; coincubated with SJC; or subjected to mechanical injury and coincubated with SJC, mechanical injury alone, or mechanical injury and incubated with tumor necrosis factor-α (TNF-α)...
July 5, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28679431/iga-n-and-o-glycosylation-profiling-reveals-no-association-with-the-pregnancy-related-improvement-in-rheumatoid-arthritis
#17
Albert Bondt, Simone Nicolardi, Bas C Jansen, T Martijn Kuijper, Johanna M W Hazes, Yuri E M van der Burgt, Manfred Wuhrer, Radboud J E M Dolhain
BACKGROUND: The Fc glycosylation of immunoglobulin G (IgG) is well known to associate with rheumatoid arthritis (RA) disease activity. The same may be true for other classes of Igs. In the present study, we sought to determine whether the glycosylation of IgA was different between healthy subjects and patients with RA, as well as whether it was associated with RA disease activity, in particular with the pregnancy-associated improvement thereof or the flare after delivery. METHODS: A recently developed high-throughput method for glycoprofiling of IgA1 was applied to affinity-captured IgA from sera of patients with RA (n = 252) and healthy control subjects (n = 32) collected before, during and after pregnancy...
July 5, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28679392/factors-associated-with-initial-or-subsequent-choice-of-biologic-disease-modifying-antirheumatic-drugs-for-treatment-of-rheumatoid-arthritis
#18
Yinzhu Jin, Rishi J Desai, Jun Liu, Nam-Kyong Choi, Seoyoung C Kim
BACKGROUND: Biologic disease-modifying antirheumatic drugs (DMARDs) are increasingly used for rheumatoid arthritis (RA) treatment. However, little is known based on contemporary data about the factors associated with DMARDs and patterns of use of biologic DMARDs for initial and subsequent RA treatment. METHODS: We conducted an observational cohort study using claims data from a commercial health plan (2004-2013) and Medicaid (2000-2010) in three study groups: patients with early untreated RA who were naïve to any type of DMARD and patients with prevalent RA with or without prior exposure to one biologic DMARD...
July 5, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28676129/evaluation-of-newly-proposed-remission-cut-points-for-disease-activity-score-in-28-joints-das28-in-rheumatoid-arthritis-patients-upon-il-6-pathway-inhibition
#19
M Schoels, F Alasti, J S Smolen, D Aletaha
BACKGROUND: Stringent remission criteria are crucial in rheumatoid arthritis (RA) assessment. Disease activity score in 28 joints (DAS28)-remission has not been included among American College of Rheumatology/European League Against Rheumatism definitions, because of its association with significant residual disease activity, partly due to high weighting of acute-phase reactants (APR). New, more stringent cut-points for DAS28-remission have recently been proposed that are suggested to reflect remission by clinical and simplified disease activity indices (clinical disease activity index (CDAI), simple disease activity index (SDAI))...
July 4, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28676069/limited-cutaneous-systemic-sclerosis-skin-demonstrates-distinct-molecular-subsets-separated-by-a-cardiovascular-development-gene-expression-signature
#20
Emma C Derrett-Smith, Viktor Martyanov, Cecilia B Chighizola, Pia Moinzadeh, Corrado Campochiaro, Korsa Khan, Tammara A Wood, Pier Luigi Meroni, David J Abraham, Voon H Ong, Robert Lafyatis, Michael L Whitfield, Christopher P Denton
BACKGROUND: Systemic sclerosis (SSc; scleroderma) is an uncommon autoimmune rheumatic disease characterised by autoimmunity, vasculopathy and fibrosis. Gene expression profiling distinguishes scleroderma from normal skin, and can detect different subsets of disease, with potential to identify prognostic biomarkers of organ involvement or response to therapy. We have performed gene expression profiling in skin samples from patients with limited cutaneous SSc (lcSSc). METHODS: Total RNA was extracted from clinically uninvolved skin biopsies of 15 patients with lcSSc and 8 healthy controls (HC)...
July 4, 2017: Arthritis Research & Therapy
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