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Rheumatoid arthritis biomarkers

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https://www.readbyqxmd.com/read/28102737/platelet-microvesicles-in-health-and-disease
#1
Imene Melki, Nicolas Tessandier, Anne Zufferey, Eric Boilard
Interest in cell-derived extracellular vesicles and their physiological and pathological implications is constantly growing. Microvesicles, also known as microparticles, are small extracellular vesicles released by cells in response to activation or apoptosis. Among the different microvesicles present in the blood of healthy individuals, platelet-derived microvesicles (PMVs) are the most abundant. Their characterization has revealed a heterogeneous cargo that includes a set of adhesion molecules. Similarly to platelets, PMVs are also involved in thrombosis through support of the coagulation cascade...
January 19, 2017: Platelets
https://www.readbyqxmd.com/read/28102705/the-acetyl-code-in-rheumatoid-arthritis-and-other-rheumatic-diseases
#2
Chiara Angiolilli, Dominique L Baeten, Timothy R Radstake, Kris A Reedquist
Growing evidence supports the idea that aberrancies in epigenetic processes contribute to the onset and progression of human immune-mediated inflammatory diseases, such as rheumatoid arthritis (RA). Epigenetic regulators of histone tail modifications play a role in chromatin accessibility and transcriptional responses to inflammatory stimuli. Among these, histone deacetylases (HDACs) regulate the acetylation status of histones and nonhistone proteins, essential for immune responses. Broad-spectrum HDAC inhibitors are well-known anti-inflammatory agents and reduce disease severity in animal models of arthritis; however, selective HDAC inhibitors remain poorly studied...
January 19, 2017: Epigenomics
https://www.readbyqxmd.com/read/28099107/case-238-spontaneous-pneumothorax-secondary-to-intrapulmonary-necrobiotic-rheumatoid-nodule
#3
Ammar A Chaudhry, Maryam Gul, Abbas A Chaudhry, William Moore
History A 54-year-old white woman with a history of rheumatoid arthritis who was taking glucocorticoids and methotrexate presented to the emergency department in December with worsening shortness of breath and chest heaviness for 1 week. She reported additional symptoms of weakness, headache, and arthralgia primarily involving her bilateral hands, wrist, ankles, and feet. She denied experiencing fevers, syncope or presyncope, focal neurologic deficits, chest pain, nausea, vomiting, unintentional weight loss, or recent trauma...
February 2017: Radiology
https://www.readbyqxmd.com/read/28096457/the-predictive-value-of-serum-s100a9-and-response-to-etanercept-is-not-confirmed-in-a-large-uk-rheumatoid-arthritis-cohort
#4
Samantha Louise Smith, Darren Plant, Stephen Eyre, Kimme Hyrich, Ann W Morgan, Anthony G Wilson, John D Isaacs, Anne Barton
OBJECTIVE: The aim was to correlate protein concentrations of S100A9 in pretreatment serum samples with response to the tumour-necrosis factor (TNF) inhibitor drugs etanercept in a large UK replication cohort. METHODS: Pretreatment serum samples from patients with RA (n = 236) about to commence treatment with etanercept had S100A9 serum concentration measured using an ELISA. Following the experimental procedure, S100A9 concentrations were analysed with respect to EULAR response...
January 16, 2017: Rheumatology
https://www.readbyqxmd.com/read/28091549/urinary-proteomics-can-define-distinct-diagnostic-inflammatory-arthritis-subgroups
#5
Stefan Siebert, Duncan Porter, Caron Paterson, Rosie Hampson, Daniel Gaya, Agnieszka Latosinska, Harald Mischak, Joost Schanstra, William Mullen, Iain McInnes
Current diagnostic tests applied to inflammatory arthritis lack the necessary specificity to appropriately categorise patients. There is a need for novel approaches to classify patients with these conditions. Herein we explored whether urinary proteomic biomarkers specific for different forms of arthritis (rheumatoid arthritis (RA), psoriatic arthritis (PsA), osteoarthritis (OA)) or chronic inflammatory conditions (inflammatory bowel disease (IBD)) can be identified. Fifty subjects per group with RA, PsA, OA or IBD and 50 healthy controls were included in the study...
January 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28088881/an-industry-update-the-latest-developments-in-therapeutic-delivery
#6
Iain Simpson
This Industry Update covers the period from 1 October through to 31 October 2016, and is based on information sourced from company press releases, scientific literature, patents and various news websites. The month saw several news items covering drug-delivery devices, including a new sensor to monitor and support the use of inhalers; launch in the UK of a new autoinjector for Cimzia(®), UCB's rheumatoid arthritis drug; and approval of Roche's Lucentis(®) in a prefilled syringe. Research was also published to show the value of continuous blood pressure monitoring in dementia management...
February 2017: Therapeutic Delivery
https://www.readbyqxmd.com/read/28064091/dose-response-characteristics-of-clematis-triterpenoid-saponins-and-clematichinenoside-ar-in-rheumatoid-arthritis-rats-by-liquid-chromatography-mass-spectrometry-based-serum-and-urine-metabolomics
#7
Rui Li, Lin-Xiu Guo, Yi Li, Wen-Qi Chang, Jian-Qun Liu, Li-Fang Liu, Gui-Zhong Xin
Clematidis Radix et Rhizoma is a traditional Chinese medicine widely used for treating arthritic disease. Clematis triterpenoid saponins (TS) and clematichinenoside AR (C-AR) have been considered to be responsible for its antiarthritic effects. However, the underling mechanism is still unclear because of their low bioavailability. To address of this issue, metabolomics tools were performed to determine metabolic variations associated with rheumatoid arthritis (RA) and responses to Clematis TS, C-AR and positive drug (Triptolide, TP) treatments...
December 29, 2016: Journal of Pharmaceutical and Biomedical Analysis
https://www.readbyqxmd.com/read/28042319/scavenger-receptor-mediated-targeted-treatment-of-collagen-induced-arthritis-by-dextran-sulfate-methotrexate-prodrug
#8
Modi Yang, Jianxun Ding, Xiangru Feng, Fei Chang, Yinan Wang, Zhongli Gao, Xiuli Zhuang, Xuesi Chen
Rheumatoid arthritis (RA) is a chronic autoimmune disorder implicated in multiple joint affection and even disability. The activated macrophages perform a predominant role in onset and persistence of RA. Scavenger receptor (SR), one of several receptors overexpressed on the activated macrophages, is a specific biomarker for targeted therapy of numerous chronic inflammation diseases like RA. In this work, dextran sulfate-graft-methotrexate conjugate (DS-g-MTX) is synthesized and characterized, which exhibits excellent targetability to SR on the activated RAW 264...
2017: Theranostics
https://www.readbyqxmd.com/read/28036035/serum-interleukin-34-levels-are-elevated-in-patients-with-systemic-lupus-erythematosus
#9
Hongxu Wang, Ju Cao, Xiaofei Lai
Interleukin-34 (IL-34) was initially identified as an alternative ligand for the colony-stimulating factor-1 receptor (CSF-1R) to mediate the biology of mononuclear phagocytic cells. Recently, IL-34 was found to be associated with chronic inflammation, such as in rheumatoid arthritis (RA). Both RA and systemic lupus erythematosus (SLE) are multifactorial autoimmune diseases and are characterized by excessive immune and inflammatory responses. Thus, we investigated whether IL-34 is involved in the pathogenesis of SLE...
December 28, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28011155/soluble-vascular-endothelial-ve-cadherin-and-autoantibodies-to-ve-cadherin-in-rheumatoid-arthritis-patients-treated-with-etanercept-or-adalimumab
#10
Christopher Banse, Helena Polena, Barry Stidder, Abir Khalil-Mgharbel, Estelle Houivet, Thierry Lequerré, Patrice Fardellone, Xavier Le-Loët, Peggy Philippe, Christian Marcelli, Olivier Vittecoq, Isabelle Vilgrain
OBJECTIVES: The aim of this study was to investigate the clinical value of sVE and anti-vascular endothelial-cadherin antibodies (AAVE) in RA treated with etanercept or adalimumab combined with methotrexate. METHODS: This was an 18-month prospective multicenter study in which patients had active RA, requiring TNF antagonist. sVE rates and AAVE titers were measured respectively by dot blot and ELISA. The relationship of these biomarkers with parameters reflecting articular or systemic disease activity, progression of structural damage, and response or remission to treatment was analyzed...
November 25, 2016: Joint, Bone, Spine: Revue du Rhumatisme
https://www.readbyqxmd.com/read/28008295/relationship-between-lymph-node-volume-and-pain-following-certolizumab-therapy-for-rheumatoid-arthritis-flare-a-pilot-study
#11
Homaira Rahimi, Gregory Dieudonne, Valeriy Kheyfits, Echoe M Bouta, Ronald W Wood, Rick Barrett, Sharon Moorehead, Edward M Schwarz, Christopher T Ritchlin
OBJECTIVES: The mechanisms that trigger flare in rheumatoid arthritis (RA) are unknown. In murine arthritis models, dysfunctional lymph node (LN) drainage is associated with joint flare. To examine if LN alterations are associated with RA flare, we analyzed the change in LN volume via contrast-enhanced magnetic resonance imaging (CE-MRI) in patients with active joint flare at baseline and 16 weeks after certolizumab pegol (CZP) therapy. We also assessed the changes in popliteal or epitrochlear LN volumes versus the Rheumatoid and Arthritis Outcome Score (RAOS) (knee), or the Michigan Hand Questionnaire (MHQ; wrist/hand), and Disease Activity Score 28 (DAS28), at baseline and 16 weeks...
2016: Clinical Medicine Insights. Arthritis and Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28004828/analysis-of-cxcr5-th17-cells-in-relation-to-disease-activity-and-tnf-inhibitor-therapy-in-rheumatoid-arthritis
#12
Deepika Singh, Matthew Henkel, Bernadette Sendon, June Feng, Anthony Fabio, Diana Metes, Larry W Moreland, Mandy J McGeachy
Th17 and TfH cells are thought to promote tissue inflammation and autoantibody production, respectively, in autoimmune diseases including rheumatoid arthritis (RA). TfH cells that co-express Th17 markers (CXCR5(+)Th17) encompass both of these pathogenic functions, and are increased in some human autoimmune settings including juvenile dermatomyositis. We investigated CXCR5(+)Th17 cells in RA subjects with stable or active disease and before and after TNF inhibitor therapy. CXCR5(+)Th17 cell frequency was increased in RA compared to healthy controls, but other helper T cell subsets were not different...
December 22, 2016: Scientific Reports
https://www.readbyqxmd.com/read/28002154/the-role-of-25-hydroxyvitamin-d-as-a-predictor-of-clinical-and-radiological-outcomes-in-early-onset-rheumatoid-arthritis
#13
Mario Andrés Quintana-Duque, Jorge Eduardo Caminos, Adriana Varela-Nariño, Enrique Calvo-Paramo, Juan José Yunis, Antonio Iglesias-Gamarra
OBJECTIVE: The aims of this study were to compare the levels of 25-hydroxyvitamin D (25(OH)D) in patients with early-onset rheumatoid arthritis (EORA) versus a healthy control group and to assess the association of 25(OH)D deficiency and the BsmI polymorphism of the vitamin D receptor gene with clinical, radiological, and laboratory parameters. METHODS: Early-onset RA Colombian patients were enrolled in a 3-year follow-up study. Vitamin D deficiency was diagnosed for 25(OH)D levels of less than 20 ng/mL...
January 2017: Journal of Clinical Rheumatology: Practical Reports on Rheumatic & Musculoskeletal Diseases
https://www.readbyqxmd.com/read/27999674/development-and-validation-of-a-novel-bioassay-to-determine-glucocorticoid-sensitivity
#14
Emily L Williams, Madeleine L Stimpson, Peter L Collins, Doyo G Enki, Ashish Sinha, Richard W Lee, Ashwin D Dhanda
BACKGROUND: Glucocorticoids (GCs) remain the first line treatment for almost all non-infectious inflammatory diseases, ranging from acute asthma to rheumatoid arthritis. However, across all conditions, patients have a variable response to GCs with approximately 30% being non-responders. This group of GC resistant patients is typically exposed to high-dose GCs and their side-effects before more appropriate immunotherapy is instituted. Hence, there is a pressing clinical need for a predictive biomarker of GC responsiveness...
2016: Biomarker Research
https://www.readbyqxmd.com/read/27992691/a-multi-biomarker-disease-activity-score-and-the-choice-of-second-line-therapy-in-early-rheumatoid-arthritis-after-methotrexate-failure
#15
Karen Hambardzumyan, Saedis Saevarsdottir, Kristina Forslind, Ingemar F Petersson, Johan K Wallman, Sofia Ernestam, Rebecca J Bolce, Ronald F van Vollenhoven
OBJECTIVE: We investigated whether the multi-biomarker disease activity (MBDA) score predicts optimal add-on treatment in methotrexate-inadequate-responders (MTX-IR) in early rheumatoid arthritis (RA). METHODS: We analysed 157 MTX-IRs (28-joint disease activity score based on erythrocyte sedimentation rate [DAS28-ESR] >3.2) from the Swedish Farmacotherapy (SWEFOT) trial who were randomized to triple therapy (TT [MTX+sulfasalazine+hydroxychloroquine]) versus MTX+infliximab...
December 19, 2016: Arthritis & Rheumatology
https://www.readbyqxmd.com/read/27988813/cardiovascular-risk-assessment-in-patients-with-rheumatoid-arthritis-a-correlative-study-of-noninvasive-arterial-health-testing
#16
Erin M Scanlon, Rekha Mankad, Cynthia S Crowson, Iftikhar J Kullo, Sharon L Mulvagh, Eric L Matteson, Zoran Kvrgic, John M Davis
This study aimed to determine the relationship between noninvasive measures of arterial health and both estimated 10-year cardiovascular risk and measures of disease activity over time in established rheumatoid arthritis. Fifty rheumatoid arthritis patients underwent noninvasive arterial health testing (brachial artery reactivity, aortic augmentation index [AIx], pulse wave velocity, carotid artery intima-media thickness, and carotid artery plaque presence) and assessment of clinical disease activity (tender or swollen joint counts, Clinical Disease Activity Index [CDAI], and Health Assessment Questionnaire II [HAQ-II])...
December 17, 2016: Clinical Rheumatology
https://www.readbyqxmd.com/read/27987497/-significance-of-different-t-follicular-helper-subsets-in-rheumatoid-arthritis
#17
X M Chen, J Li, X Y Zhang, Y B Jin, D Yu, X L Sun, L J Wu, J He, Z G Li
OBJECTIVE: To detect the expressions of T follicular helper (Tfh) subsets and T follicular helper effect memory (Tfhem) cells in circulation of patients with rheumatoid arthritis (RA), as well as to examine their roles in providing biomarkers for active RA. METHODS: This study enrolled 41 patients with RA, who were navely-treated or had no application of hormone and disease-modifying anti-rheumatic drugs in recent 3 months, as well as 32 healthy controls. The percentages of Tfhem (CD4(+)CXCR5(+)CCR7(low)PD1(high)) cells, Tfh (CD3(+)CD4(+)CXCR5(+)CD45RA(-)) subsets, Tfh1 (CXCR3(+)CCR6(-)Tfh),Tfh2 (CXCR3(-)CCR6(-)Tfh),and Tfh17 (CXCR3(-)CCR6(+)Tfh), were determined by flow cytometry of peripheral blood from the patients with RA and health controls...
December 18, 2016: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/27964744/differential-gene-and-protein-expression-of-chemokines-and-cytokines-in-synovial-fluid-of-patients-with-arthritis
#18
Anastasiya Muntyanu, Fatima Abji, Kun Liang, Remy A Pollock, Vinod Chandran, Dafna D Gladman
BACKGROUND: Psoriatic arthritis (PsA), an inflammatory musculoskeletal disease, develops in approximately 30% of patients with psoriasis. Previously, chemokine (C-X-C motif) ligand 10 (CXCL10) was identified as a predictive biomarker of PsA in patients with psoriasis and was reduced after development of PsA. The purpose of the present study was to explore messenger RNA (mRNA) and protein expression of CXCL10 and its receptor, chemokine (C-X-C motif) receptor 3 (CXCR3), in the joints of patients with PsA to gain insight into their role in the pathogenesis of the disease...
December 13, 2016: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/27943573/circulating-cell-free-dna-a-marker-to-predict-the-therapeutic-response-for-biological-dmards-in-rheumatoid-arthritis
#19
Teppei Hashimoto, Kohsuke Yoshida, Naonori Hashimoto, Ayako Nakai, Kenta Kaneshiro, Kohjin Suzuki, Yoshiko Kawasaki, Nao Shibanuma, Akira Hashiramoto
AIM: To evaluate the correlation between circulating cell-free DNA (ccfDNA) in plasma and clinical disease activities in patients with rheumatoid arthritis (RA). METHOD: The study group included 30 patients with RA who started biological disease-modifying anti-rheumatic drugs (DMARDs) therapy. The concentration of ccfDNA in plasma was measured by quantitative real-time polymerase chain reaction at baseline to 24 weeks in every 4-week period from 30 patients and 21 healthy individuals...
December 10, 2016: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/27933212/spontaneous-destructive-periodontitis-and-skeletal-bone-damage-in-transgenic-mice-carrying-a-human-shared-epitope-coding-hla-drb1-allele
#20
Prashasnika Gehlot, Sarah L Volk, Hector F Rios, Karl J Jepsen, Joseph Holoshitz
OBJECTIVE: Shared epitope (SE)-coding DRB1 alleles are associated with bone erosion in several diseases, including rheumatoid arthritis (RA) and periodontal disease (PD), but the underlying mechanism is unknown. We have recently identified the SE as an osteoclast-activating ligand. To better understand the biological effects of the SE in vivo, here we sought to determine whether it can facilitate spontaneous bone damage in naïve mice. METHODS: 3-month old naïve transgenic mice that carry the human SE-coding allele DRB1*04:01, or a SE-negative allele DRB1*04:02 were studied...
2016: RMD Open
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