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Rheumatoid arthritis biomarkers

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https://www.readbyqxmd.com/read/28629539/uplc-esi-qtof-ms-based-metabolomics-survey-on-the-toxicity-of-triptolide-and-detoxication-of-licorice
#1
Zhuo Wang, Jian-Qun Liu, Jin-Di Xu, He Zhu, Ming Kong, Guo-Hua Zhang, Su-Min Duan, Xiu-Yang Li, Guang-Fu Li, Li-Fang Liu, Song-Lin Li
Triptolide (TP) from Tripterygium wilfordii has been demonstrated to possess anti-inflammatory, immunosuppressive, and anticancer activities. TP is specially used for the treatment of awkward rheumatoid arthritis, but its clinical application is confined by intense side effects. It is reported that licorice can obviously reduce the toxicity of TP, but the detailed mechanisms involved have not been comprehensively investigated. The current study aimed to explore metabolomics characteristics of the toxic reaction induced by TP and the intervention effect of licorice water extraction (LWE) against such toxicity...
June 2017: Chinese Journal of Natural Medicines
https://www.readbyqxmd.com/read/28629188/serum-biomarkers-for-discrimination-between-hepatitis-c-related-arthropathy-and-early-rheumatoid-arthritis
#2
Isabela Siloşi, Lidia Boldeanu, Viorel Biciuşcă, Maria Bogdan, Carmen Avramescu, Citto Taisescu, Vlad Padureanu, Mihail Virgil Boldeanu, Anica Dricu, Cristian Adrian Siloşi
In the present study, we aimed to estimate the concentrations of cytokines (interleukin 6, IL-6, tumor necrosis factor-α, TNF-α) and auto-antibodies (rheumatoid factor IgM isotype, IgM-RF, antinuclear auto-antibodies, ANA, anti-cyclic citrullinated peptide antibodies IgG isotype, IgG anti-CCP3.1, anti-cardiolipin IgG isotype, IgG anti-aCL) in serum of patients with eRA (early rheumatoid arthritis) and HCVrA (hepatitis C virus-related arthropathy) and to assess the utility of IL-6, TNF-α together with IgG anti-CCP and IgM-RF in distinguishing between patients with true eRA and HCVrA, in the idea of using them as differential immunomarkers...
June 19, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28626499/the-effects-of-blast-exposure-on-protein-deimination-in-the-brain
#3
Peter J Attilio, Michael Flora, Alaa Kamnaksh, Donald J Bradshaw, Denes Agoston, Gregory P Mueller
Oxidative stress and calcium excitotoxicity are hallmarks of traumatic brain injury (TBI). While these early disruptions may be corrected over a relatively short period of time, long-lasting consequences of TBI including impaired cognition and mood imbalances can persist for years, even in the absence of any evidence of overt injury based on neuroimaging. This investigation examined the possibility that disordered protein deimination occurs as a result of TBI and may thus contribute to the long-term pathologies of TBI...
2017: Oxidative Medicine and Cellular Longevity
https://www.readbyqxmd.com/read/28625080/in-vivo-pet-imaging-of-the-activated-immune-environment-in-a-small-animal-model-of-inflammatory-arthritis
#4
Benjamin L Franc, Sam Goth, John MacKenzie, Xiaojuan Li, Joseph Blecha, Tina Lam, Salma Jivan, Randall A Hawkins, Henry VanBrocklin
BACKGROUND: Evolving immune-mediated therapeutic strategies for rheumatoid arthritis (RA) may benefit from an improved understanding of the complex role that T-cell activation plays in RA. This study assessed the potential of fluorine-18-labeled 9-β-d-arabinofuranosylguanine ([(18)F]F-AraG) positron emission tomography (PET) imaging to report immune activation in vivo in an adjuvant-induced arthritis (AIA) small animal model. METHODS: Using positron emission tomography-computed tomography imaging, uptake of [(18)F]F-AraG in the paws of mice affected by arthritis at 6 (acute) and 20 (chronic) days following AIA induction in a single paw was assessed and compared to uptake in contralateral control paws...
January 1, 2017: Molecular Imaging
https://www.readbyqxmd.com/read/28619676/peroxynitrite-modified-histone-as-a-pathophysiological-biomarker-in-autoimmune-diseases
#5
REVIEW
Md Asad Khan, Khursheed Alam, Md Zafaryab, M Moshahid A Rizvi
Under physiological conditions, reactive nitrogen and oxygen species are produced continuously. However, excess of these radicals may damage biomolecules like lipids, proteins and nucleic acids. These reactive species have been implicated in many disease conditions including acute/chronic inflammation, rheumatoid arthritis (RA), neurodegenerative diseases and systemic lupus erythematosus (SLE). Peroxynitrite, an oxidant and nitrating molecule, formed in in vivo, when nitric oxide reacts with superoxide radical...
June 12, 2017: Biochimie
https://www.readbyqxmd.com/read/28618429/microarray-expression-profile-of-circular-rnas-in-peripheral-blood-mononuclear-cells-from-rheumatoid-arthritis-patients
#6
Qingqing Ouyang, Jing Wu, Zhenlan Jiang, Jinjun Zhao, Ran Wang, Aiju Lou, Dingji Zhu, Guo-Ping Shi, Min Yang
BACKGROUND/AIMS: Circular RNAs (circRNAs) compose a large class of RNAs that can be used as biomarkers in clinical blood samples. This study aimed to determine the expression of circRNAs in peripheral blood mononuclear cells (PBMCs) from rheumatoid arthritis (RA) patients to identify novel biomarkers for RA screening. METHODS: We started with a microarray screening of circRNA changes in PBMCs from 5 RA patients and 5 healthy controls. We then confirmed the selected circRNA changes in PBMCs from 30 RA patients and 25 age- and sex-matched controls using the real-time quantitative reverse transcription-polymerase chain reaction (qRT-PCR)...
June 15, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28616915/-association-of-elevated-platelet-microparticles-with-disease-activity-in-rheumatoid-arthritis
#7
Li-Jia Xue, Bei-Bei Cui, Xi Li, Qiao-Rong Huang, Yi Liu, Hui Lin
OBJECTIVES: To explore the expression of platelets microparticles (PMPs) in peripheral blood (PB) and synovial fluid (SF) of rheumatoid arthritis (RA) patients and its correlation with clinical inflammatory parameters. METHODS: The levels of PMPs in PB were detected by flow cytometry in 26 active RA patients and 15 healthy control (HC). SF was collected from 16 patients. The percentages of CD62P(+)PMPs, CD154(+)PMPs and clinical parameters (including CRP, ESR, RF and ACPA) were also measured, then the correlations of PMPs with these parameters were analyzed...
May 2017: Sichuan da Xue Xue Bao. Yi Xue Ban, Journal of Sichuan University. Medical Science Edition
https://www.readbyqxmd.com/read/28612349/role-of-hydrotherapy-in-the-amelioration-of-oxidant-antioxidant-status-in-rheumatoid-arthritis-patients
#8
Somaiya Mateen, Shagufta Moin, Abdul Q Khan, Atif Zafar, Naureen Fatima, Sumayya Shahzad
AIM: Rheumatoid arthritis (RA) is an inflammatory autoimmune disease. Reactive oxygen species (ROS) are involved in the pathophysiology of RA. Moderate intensity exercises have been reported to have anti-oxidant and anti-inflammatory effects. The aim of this study was to evaluate the effect of hydrotherapy on oxidant-antioxidant status in RA patients. METHODS: Forty RA patients and 30 age- and sex-matched healthy controls were included in this study. RA patients were subdivided into two groups: the first group (n = 20) received treatment with conventional RA drugs, while the second group (n = 20) received hydrotherapy along with the conventional drugs for a period of 12 weeks...
June 14, 2017: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/28607508/systematic-review-and-meta-analysis-pharmacogenetics-of-anti-tnf-treatment-response-in-rheumatoid-arthritis
#9
REVIEW
S Bek, A B Bojesen, J V Nielsen, J Sode, S Bank, U Vogel, V Andersen
Rheumatoid arthritis (RA) is a chronic inflammatory disease that affects ~1% of the Caucasian population. Over the last decades, the availability of biological drugs targeting the proinflammatory cytokine tumour necrosis factor α, anti-TNF drugs, has improved the treatment of patients with RA. However, one-third of the patients do not respond to the treatment. We wanted to evaluate the status of pharmacogenomics of anti-TNF treatment. We performed a PubMed literature search and all studies reporting original data on associations between genetic variants and anti-TNF treatment response in RA patients were included and results evaluated by meta-analysis...
June 13, 2017: Pharmacogenomics Journal
https://www.readbyqxmd.com/read/28606626/serum-alarm-antiproteases-in-systemic-sclerosis-patients
#10
Anna Olewicz-Gawlik, Dorota Trzybulska, Katarzyna Graniczna, Barbara Kuznar-Kaminska, Katarzyna Katulska, Halina Batura-Gabryel, Magdalena Frydrychowicz, Aleksandra Danczak-Pazdrowska, Iwona Mozer-Lisewska
Alarm antiproteases, i.e. secretory leukocyte protease inhibitor ad elafin, are key mediators in innate immune response and integrate innate and adaptive immunity systems. The aim of the study was to assess clinical significance of serum levels of alarm antiproteases, elafin and secretory leukocyte protease inhibitor (SLPI) in patients with systemic sclerosis (SSc). Twenty-eight patients with SSc, 25 patients with rheumatoid arthritis (RA) and 22 healthy controls were recruited. Serum elafin and SLPI levels were examined using enzyme-linked immunosorbent assay (ELISA)...
June 9, 2017: Human Immunology
https://www.readbyqxmd.com/read/28600618/application-of-omics-in-predicting-anti-tnf-efficacy-in-rheumatoid-arthritis
#11
Xi Xie, Fen Li, Shu Li, Jing Tian, Jin-Wei Chen, Jin-Feng Du, Ni Mao, Jian Chen
Rheumatoid arthritis (RA) is a systemic autoimmune disease characterized by progressive joint erosion. Tumor necrosis factor (TNF) antagonists are the most widely used biological disease-modifying anti-rheumatic drug in RA. However, there continue to be one third of RA patients who have poor or no response to TNF antagonists. Following consideration of the uncertainty of therapeutic effects and the high price of TNF antagonists, it is worthy to predict the treatment responses before anti-TNF therapy. According to the comparisons between the responders and non-responders to TNF antagonists by omic technologies, such as genomics, transcriptomics, proteomics, and metabolomics, rheumatologists are eager to find significant biomarkers to predict the effect of TNF antagonists in order to optimize the personalized treatment in RA...
June 10, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28600026/metabolitepredict-a-de-novo-human-metabolomics-prediction-system-and-its-applications-in-rheumatoid-arthritis
#12
QuanQiu Wang, Rong Xu
Human metabolomics has great potential in disease mechanism understanding, early diagnosis, and therapy. Existing metabolomics studies are often based on profiling patient biofluids and tissue samples and are difficult owing to the challenges of sample collection and data processing. Here, we report an alternative approach and developed a computation-based prediction system, MetabolitePredict, for disease metabolomics biomarker prediction. We applied MetabolitePredict to identify metabolite biomarkers and metabolite targeting therapies for rheumatoid arthritis (RA), a last-lasting complex disease with multiple genetic and environmental factors involved...
June 6, 2017: Journal of Biomedical Informatics
https://www.readbyqxmd.com/read/28599787/anti-cd26-autoantibodies-are-involved-in-rheumatoid-arthritis-and-show-potential-clinical-interest
#13
Oscar J Cordero, Rubén Varela-Calviño, Tania López-González, Milica Grujic, Zorica Juranic, Coral Mouriño, Íñigo Hernández-Rodríguez, Marina Rodríguez-López, Bruno Aspe de la Iglesia, José María Pego-Reigosa
OBJECTIVES: Rheumatoid arthritis (RA) patients show low serum levels of the Ag dipeptidyl peptidase IV (DPP-IV/CD26), both soluble CD26 (sCD26) concentration and its DPP-IV activity. The aim of this study was to test if anti-DPP-IV/CD26 Abs (Anti-CD26) cleared sCD26. DESIGN & METHODS: Serum Anti-CD26 and Total titers (as comparison) of isotypes IgA, IgM and IgG as well as sCD26 concentration and DPP-IV activity were measured in a cohort of RA patients undergoing different biological and non-biological therapies (n=105) and controls (n=50)...
June 6, 2017: Clinical Biochemistry
https://www.readbyqxmd.com/read/28598779/preclinical-biomarker-associations-with-both-incident-rheumatoid-arthritis-and-its-subsequent-mortality-sex-effects-in-a-41-year-community-based-case-control-cohort-study
#14
Alfonse T Masi, Azeem A Rehman, Laura C Jorgenson, Jean C Aldag
OBJECTIVES: To identify sex effects and preclinical serum biomarker associations with both incident rheumatoid arthritis (RA) and its subsequent mortality, using a 41-year, community-based, case-control cohort. METHODS: After cohort entry in 1974, incident RA cases (n=54) had clinical onsets between 1977 and 1994. Cohort control (CN) subjects were individually matched on entry to cases (4 CN:1 RA, n=216). All subjects were followed for survival from 1995 through 2015...
June 5, 2017: Clinical and Experimental Rheumatology
https://www.readbyqxmd.com/read/28598681/soluble-cd206-plasma-levels-in-rheumatoid-arthritis-reflect-decrease-in-disease-activity
#15
Line Dam Heftdal, Kristian Stengaard-Pedersen, Lykke Midtbøll Ørnbjerg, Merete Lund Hetland, Kim Hørslev-Petersen, Peter Junker, Mikkel Østergaard, Malene Hvid, Bent Deleuran, Holger Jon Møller, Stinne Ravn Greisen
Rheumatoid arthritis (RA) is characterized by chronic joint inflammation and infiltration by activated macrophages. TNFα is a central mediator in this process. The mannose receptor, CD206, is a scavenger receptor expressed by M2A-macrophages and dendritic cells. It is involved in collagen internalization and degradation. The soluble form has been suggested as a biomarker of M2A-macrophage activation. The aim of this study was to investigate sCD206 plasma levels in early RA patients initiating anti-TNFα treatment...
June 9, 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/28598026/altered-expression-of-micrornas-in-rheumatoid-arthritis
#16
Fataneh Tavasolian, Elham Abdollahi, Ramin Rezaei, Amir Abbas Momtazi, Yves Henrotin, Amirhossein Sahebkar
Rheumatoid arthritis is one of the most common types of inflammatory joint diseases. Women, smokers and people with positive family history are more susceptible to this disease. Diagnostic criteria include at least one swollen joint that has not been caused by other diseases. MicroRNAs are non-coding RNAs that are evolutionarily conserved and have a length of 18-25 nucleotides. MicroRNAs control gene expression at the post-transcriptional level via promoting mRNA degradation or translational repression. Recognition of alterations in microRNA status and their respective targets, may offer an opportunity to better identify the pathways that are involved in the etiopathogenesis of autoimmune diseases...
June 9, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28592200/anti-carbamylated-protein-antibodies-in-systemic-lupus-erythematosus-patients-with-articular-involvement
#17
L Massaro, F Ceccarelli, T Colasanti, M Pendolino, C Perricone, E Cipriano, F Natalucci, G Capalbo, R Lucchetti, A Pecani, M Vomero, R Mancini, F R Spinelli, C Alessandri, G Valesini, F Conti
Objective Several studies have evaluated the prevalence of rheumatoid factor (RF) and anti-citrullinated proteins antibodies (ACPA) in systemic lupus erythematosus (SLE) patients but no data are available on the anti-carbamylated proteins (anti-CarP), a new biomarker for rheumatoid arthritis (RA). We evaluated the anti-CarP prevalence in SLE patients with joint involvement and the associations with different phenotypes. Methods Seventy-eight SLE patients with joint involvement were enrolled (F/M 73/5; mean ± SD age 47...
January 1, 2017: Lupus
https://www.readbyqxmd.com/read/28587321/clinical-evaluation-of-cenp-b-and-scl-70-autoantibodies-in-silicosis-patients
#18
Suni Lee, Hiroaki Hayashi, Naoko Kumagai-Takei, Hidenori Matsuzaki, Kei Yoshitome, Yasumitsu Nishimura, Kozo Uragami, Masayasu Kusaka, Shoko Yamamoto, Miho Ikeda, Tamayo Hatayama, Wataru Fujimoto, Takemi Otsuki
Silicosis patients (SIL) suffer from respiratory disorders and dysregulation of autoimmunity. Frequent complications such as rheumatoid arthritis, systemic sclerosis (SSc) and vasculitis are known in SIL. Furthermore, we reported previously that some SIL exhibited better respiratory conditions in association with a worse immunological status. In this study, the clinical roles of anti-CENP-B and Scl-70 autoantibodies in SIL were analyzed. The titer index (Log10) of anti-CENP-B autoantibody in SIL was higher than that of healthy volunteers (HV), and that of SSc was higher than those of HV and SIL...
June 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28584189/the-efficacy-of-motivational-counselling-and-sms-reminders-on-daily-sitting-time-in-patients-with-rheumatoid-arthritis-a-randomised-controlled-trial
#19
Tanja Thomsen, Mette Aadahl, Nina Beyer, Merete Lund Hetland, Katrine Løppenthin, Julie Midtgaard, Robin Christensen, Mikkel Østergaard, Poul Jørgen Jennum, Bente Appel Esbensen
OBJECTIVES: The aim of this report is to investigate the efficacy of an individually tailored, theory-based behavioural intervention for reducing daily sitting time, pain and fatigue, as well as improving health-related quality of life, general self-efficacy, physical function and cardiometabolic biomarkers in patients with rheumatoid arthritis (RA). METHODS: In this randomised controlled trial 150 patients with RA were randomised to an intervention or a no-intervention control group...
June 5, 2017: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/28582758/rheumatoid-arthritis-recent-advances-on-its-etiology-role-of-cytokines-and-pharmacotherapy
#20
REVIEW
Javaid Alam, Ibrahim Jantan, Syed Nasir Abbas Bukhari
An autoimmune disease is defined as a clinical syndrome resulted from an instigation of both T cell and B cell or individually, in the absence of any present infection or any sort of distinguishable cause. Clonal deletion of auto reactive cells remains the central canon of immunology for decades, keeping the role of T cell and B cell aside, which are actually the guards to recognize the entry of foreign body. According to NIH, 23.5 million Americans are all together affected by these diseases. They are rare, but with the exception of RA...
June 2, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
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