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Arthritis Research & Therapy

Pan Liao, Yi He, Fangyuan Yang, Guihu Luo, Jian Zhuang, Zeqing Zhai, Lili Zhuang, Zhuomiao Lin, Jiehuang Zheng, Erwei Sun
BACKGROUND: Neutrophil extracellular trap (NET) formation has been described to be closely involved in the pathogenesis of systemic lupus erythematosus (SLE). In this study, we aimed to investigate the effect of polydatin (PD) on NET formation and its effects on disease activity in lupus-prone mouse models. METHODS: In vitro, neutrophils from SLE patients and healthy people stimulated with phorbol 12-myristate 13-acetate (PMA) or phosphate-buffered saline (PBS) were treated with PD, and reactive oxygen species (ROS) production and NET formation examined...
November 12, 2018: Arthritis Research & Therapy
Michaela A Stoffer-Marx, Meike Klinger, Simone Luschin, Silvia Meriaux-Kratochvila, Monika Zettel-Tomenendal, Valerie Nell-Duxneuner, Jochen Zwerina, Ingvild Kjeken, Marion Hackl, Sylvia Öhlinger, Anthony Woolf, Kurt Redlich, Josef S Smolen, Tanja A Stamm
BACKGROUND: Evidence for non-pharmacological interventions in hand osteoarthritis is promising but still scarce. Combined interventions are most likely to best cover the clinical needs of patients with hand osteoarthritis (OA). The aim of this study was to evaluate the effect of a combined, interdisciplinary intervention feasible in both primary and specialist care compared to routine care plus placebo in patients with hand OA. METHODS: This was a randomised, controlled 2-month trial with a blinded assessor...
November 9, 2018: Arthritis Research & Therapy
David Schub, Gunter Assmann, Urban Sester, Martina Sester, Tina Schmidt
BACKGROUND: Varicella zoster virus (VZV)-specific cellular immunity is essential for viral control, and the incidence of VZV reactivation is increased in patients with rheumatic diseases. Because knowledge of the influence of antirheumatic drugs on specific cellular immunity is limited, we analyzed VZV-specific T cells in patients with rheumatoid arthritis (RA) and seronegative spondylarthritis (SpA), and we assessed how their levels and functionality were impacted by disease-modifying antirheumatic drugs (DMARDs)...
November 9, 2018: Arthritis Research & Therapy
Mériem Belhocine, Laetitia Coutte, Nicolas Martin Silva, Nathalie Morel, Gaëlle Guettrot-Imbert, Romain Paule, Claire Le Jeunne, Micaela Fredi, Michel Dreyfus, Jean-Charles Piette, Odile Souchaud-Debouverie, Catherine Deneux-Tharaux, Vassilis Tsatsaris, Emmanuelle Pannier, Véronique Le Guern, Nathalie Costedoat-Chalumeau
OBJECTIVE: Although one of the three obstetric manifestations of antiphospholipid syndrome (APS) is intrauterine fetal death (IUFD), little is known about it in this context. We report the first large series of patients with APS and IUFD. METHODS: We retrospectively analyzed the history and clinical data of women at four French hospitals. All had (1) APS diagnosis (Sydney criteria) and (2) IUFD at or after 10 weeks of gestation (weeks) between 2000 and 2016. RESULTS: The study included 65 women...
November 6, 2018: Arthritis Research & Therapy
Carla Cunha, Ana J Silva, Paulo Pereira, Rui Vaz, Raquel M Gonçalves, Mário A Barbosa
Lumbar disc herniation (LDH) is highly associated with inflammation in the context of low back pain. Currently, inflammation is associated with adverse symptoms related to the stimulation of nerve fibers that may lead to pain. However, inflammation has also been indicated as the main factor responsible for LDH regression. This apparent controversy places inflammation as a good prognostic indicator of spontaneous regression of LDH. This review addresses the molecular and cellular mechanisms involved in LDH regression, including matrix remodeling and neovascularization, in the scope of the clinical decision on conservative versus surgical intervention...
November 6, 2018: Arthritis Research & Therapy
Yuanyuan Wang, Andrew J Teichtahl, François Abram, Sultana Monira Hussain, Jean-Pierre Pelletier, Flavia M Cicuttini, Johanne Martel-Pelletier
BACKGROUND: There is evidence that knee pain not only is a consequence of structural deterioration in osteoarthritis (OA) but also contributes to structural progression. Clarifying this is important because targeting the factors related to knee pain may offer a clinical approach for slowing the progression of knee OA. The aim of this study was to examine whether knee pain over 1 year predicted cartilage volume loss, incidence and progression of radiographic osteoarthritis (ROA) over 4 years...
November 6, 2018: Arthritis Research & Therapy
Giovanni Orsolini, Giovanni Adami, Maurizio Rossini, Angelo Fassio, Alessandro Giollo, Cristian Caimmi, Luca Idolazzi, Davide Gatti, Ombretta Viapiana
Following publication of the original article [1], the authors reported a typesetting error.
November 5, 2018: Arthritis Research & Therapy
Syuichi Munenaga, Kazuhisa Ouhara, Yuta Hamamoto, Mikihito Kajiya, Katsuhiro Takeda, Satoshi Yamasaki, Toshihisa Kawai, Noriyoshi Mizuno, Tsuyoshi Fujita, Eiji Sugiyama, Hidemi Kurihara
BACKGROUND: Epidemiological evidence to suggest that periodontal disease (PD) is involved in the progression of rheumatoid arthritis (RA) is increasing. The complement system plays a critical role in immune responses. C5a has been implicated in chronic inflammatory diseases, including PD and RA. Porphyromonas gingivalis is the major causative bacteria of PD and can produce C5a. Therefore, it is hypothesized that P. gingivalis infection is involved in the progression of RA by elevating C5a levels...
November 3, 2018: Arthritis Research & Therapy
Ya-Chih Tien, Hsu-Heng Yen, Ching-Fang Li, Mei-Ping Liu, Yin-Tzu Hsue, Ming-Hui Hung, Ying-Ming Chiu
BACKGROUND: Our aim was to investigate dynamic changes in hepatitis B virus (HBV) surface antibody (HBsAb) titer and the associated risk of HBV reactivation and clinical course in patients with HBV surface antigen negative/core antibody positive (HBsAg- /HBcAb+ ) serostatus during antirheumatic therapy with biologic agents. METHODS: In a prospective study from January 2013 to June 2017, we monitored the HBV serostatus of HBsAg- /HBcAb+ patients undergoing biologic therapy for rheumatic diseases...
November 1, 2018: Arthritis Research & Therapy
Yeon-Ah Lee, Dae-Hyun Hahm, Jung Yeon Kim, Bonjun Sur, Hyun Min Lee, Chun Jeih Ryu, Hyung-In Yang, Kyoung Soo Kim
BACKGROUND: Different adiponectin isoforms appear to be differentially involved in the pathogenesis of various diseases. The purpose of this study was to generate monoclonal antibodies (mAbs) specific to different adiponectin isoforms and investigate whether these mAbs have potential as therapeutic agents for such diseases. METHODS: Hybridoma cells producing monoclonal antibodies were generated and screened using enzyme-linked immunosorbent assay and Western blotting for the production of mAbs recognizing human adiponectin isoforms...
October 30, 2018: Arthritis Research & Therapy
Irazú Contreras-Yáñez, Emmanuel Ruiz-Medrano, Luz Del Carmen R Hernández, Virginia Pascual-Ramos
BACKGROUND: Rheumatoid arthritis (RA) knowledge has been constructed with studies performed in Caucasians patients; Latin American patients present unique characteristics. Empowerment is a social multidimensional construct that has been associated to better health-related quality of life in RA. There is no validated instrument for use with Spanish-speaking patients. The objective of the study was to adapt the Spanish version of the Health Empowerment Scale (S-HES), which was selected for its psychometric properties and suitability for low-literacy populations, for RA Hispanic patients (RAEH), and to perform its psychometric validation...
October 30, 2018: Arthritis Research & Therapy
Matthew Roughley, Alyshah Abdul Sultan, Lorna Clarson, Sara Muller, Rebecca Whittle, John Belcher, Christian D Mallen, Edward Roddy
BACKGROUND: An association between gout and renal disease is well-recognised but few studies have examined whether gout is a risk factor for subsequent chronic kidney disease (CKD). Additionally, the impact of urate-lowering therapy (ULT) on development of CKD in gout is unclear. The objective of this study was to quantify the risk of CKD stage ≥ 3 in people with gout and the impact of ULT. METHODS: This was a retrospective cohort study using data from the Clinical Practice Research Datalink (CPRD)...
October 30, 2018: Arthritis Research & Therapy
Philip Helliwell, Laura C Coates, Oliver FitzGerald, Peter Nash, Enrique R Soriano, M Elaine Husni, Ming-Ann Hsu, Keith S Kanik, Thijs Hendrikx, Joseph Wu, Elizabeth Kudlacz
BACKGROUND: The multiple disease domains affected in psoriatic arthritis (PsA) may make composite endpoints appropriate for assessing changes in disease activity over time. Tofacitinib is an oral Janus kinase inhibitor for the treatment of PsA. Data from two phase 3 studies of patients with PsA were used to evaluate the effect of tofacitinib on composite endpoints. METHODS: Oral Psoriatic Arthritis triaL (OPAL) Broaden was a 12-month study of tumor necrosis factor inhibitor (TNFi)-naïve patients with an inadequate response to at least one conventional synthetic disease-modifying anti-rheumatic drug; OPAL Beyond was a 6-month study of patients with inadequate response to TNFi...
October 29, 2018: Arthritis Research & Therapy
Duygu Tecer, Gozde Kubra Yardımcı, Alper Sari, Hakan Babaoglu
No abstract text is available yet for this article.
October 26, 2018: Arthritis Research & Therapy
Yuichi Ishikawa, Shigeru Iwata, Kentaro Hanami, Aya Nawata, Mingzeng Zhang, Kaoru Yamagata, Shintaro Hirata, Kei Sakata, Yasuyuki Todoroki, Kazuhisa Nakano, Shingo Nakayamada, Minoru Satoh, Yoshiya Tanaka
BACKGROUND: Dermatomyositis (DM) with rapidly progressive interstitial lung disease (DM RP-ILD) is a life-threatening condition. Serum cytokine levels are potentially suitable biomarkers for DM RP-ILD. However, the relationships among cytokine levels, lung imaging findings, and lung pathology have not been investigated. The aim of the present retrospective study was to determine the association between hypercytokinemia and lung inflammation in patients with DM RP-ILD. METHODS: The study subjects were nine patients with life-threatening DM RP-ILD and severe hypoxemia (partial arterial oxygen pressure (PaO2 )/fraction of inspired oxygen (FiO2 ) ratio ≤ 200) before receiving intensive care management, who were admitted to our hospital between 2006 and 2015...
October 26, 2018: Arthritis Research & Therapy
Ulrich A Walker, Veronika K Jaeger, Katharina M Bruppacher, Rucsandra Dobrota, Lionel Arlettaz, Martin Banyai, Jörg Beron, Carlo Chizzolini, Ernst Groechenig, Rüdiger B Mueller, François Spertini, Peter M Villiger, Oliver Distler
BACKGROUND: Nailfold capillaroscopy (NC) is an important tool for the diagnosis of systemic sclerosis (SSc). The capillaroscopic skin ulcer risk index (CSURI) was suggested to identify patients at risk of developing digital ulcers (DUs). This study aims to assess the reliability of the CSURI across assessors, the CSURI change during follow-up and the value of the CSURI in predicting new DUs. METHODS: This multicentre, longitudinal study included SSc patients with a history of DUs...
October 25, 2018: Arthritis Research & Therapy
Karin Hjorton, Niklas Hagberg, Elisabeth Israelsson, Lisa Jinton, Olof Berggren, Johanna K Sandling, Kristofer Thörn, John Mo, Maija-Leena Eloranta, Lars Rönnblom
BACKGROUND: In systemic lupus erythematosus (SLE), immune complexes (ICs) containing self-derived nucleic acids trigger the synthesis of proinflammatory cytokines by immune cells. We asked how an interleukin (IL)-1 receptor-associated kinase 4 small molecule inhibitor (IRAK4i) affects RNA-IC-induced cytokine production compared with hydroxychloroquine (HCQ). METHODS: Plasmacytoid dendritic cells (pDCs) and natural killer (NK) cells were isolated from peripheral blood mononuclear cells (PBMCs) of healthy individuals...
October 24, 2018: Arthritis Research & Therapy
Zhaohua Zhu, Changhai Ding, Weiyu Han, Shuang Zheng, Tania Winzenberg, Flavia Cicuttini, Graeme Jones
BACKGROUD: The natural history of semi-quantitative magnetic resonance imaging (MRI)-detected osteophytes (MRI-detected OPs) has not been described and it is unknown whether knee structural abnormalities can predict MRI-detected OP change over time. Thus, the aim of current study is to describe the natural history of knee MRI-detected OP, and to determine if knee structural abnormalities are associated with change of MRI-detected OP in a longitudinal study of older adults. METHODS: Randomly selected older adults (n = 837, mean age 63 years) had MRI at baseline and 413 of them had MRI 2...
October 23, 2018: Arthritis Research & Therapy
Giuliana Guggino, Valentina Orlando, Laura Saieva, Piero Ruscitti, Paola Cipriani, Marco Pio La Manna, Roberto Giacomelli, Riccardo Alessandro, Giovanni Triolo, Francesco Ciccia, Francesco Dieli, Nadia Caccamo
BACKGROUND: We aimed to evaluate the phenotype, function, and microRNA (miRNA)17-92 cluster expression in Vγ9Vδ2 T-cell subsets and the correlation with immune response in rheumatoid arthritis (RA) patients. METHODS: Peripheral blood from 10 early RA untreated patients and 10 healthy donors (HD) was obtained. Polyclonal Vγ9Vδ2 T-cell lines were generated and analysed by flow cytometry. Analysis of miRNA17-92 cluster expression was performed by real-time polymerase chain reaction (RT-PCR), and expression of mRNA target genes was also studied...
October 22, 2018: Arthritis Research & Therapy
Shasha Hu, Yong Hou, Qian Wang, Mengtao Li, Dong Xu, Xiaofeng Zeng
BACKGROUND: Systemic sclerosis is a disease that has significant clinical heterogeneity. This study aims to determine the causes and risk factors of death in a single center European League Against Rheumatism Scleroderma Trials and Research Group (EUSTAR) cohort at the Peking Union Medical College Hospital (PUMCH) in China. METHODS: Patients clinically diagnosed with systemic sclerosis (SSc) between Feb 2009 and Dec 2015 were prospectively recruited from the EUSTAR database and Chinese Rheumatism Data Center (CRDC) of the PUMCH...
October 22, 2018: Arthritis Research & Therapy
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