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Julie Gueudry, Jennifer E Thorne, Rakesh Bansie, Juergen Braun, P Martin van Hagen, Bahram Bodaghi
The treatment of articular and extra-articular manifestations associated with HLA-B27 has undergone dramatic changes over the past two decades, mainly as a consequence of the introduction of biologic agents and in particular anti-tumor necrosis factor α (anti-TNFα) agents. Uveitis is known to be the most frequent extra-articular feature in HLA-B27-associated spondyloarthritides. Topical corticosteroids and cycloplegic agents remain the cornerstones of treatment. However, biologic therapy may be effective in the management of refractory or recurrent forms of uveitis...
October 17, 2016: Ocular Immunology and Inflammation
Alice Ashouri Christiansen, Oliver Hendricks, Dorota Kuettel, Kim Hørslev-Petersen, Anne Grethe Jurik, Steen Nielsen, Kaspar Rufibach, Anne Gitte Loft, Susanne Juhl Pedersen, Louise Thuesen Hermansen, Mikkel Østergaard, Bodil Arnbak, Claus Manniche, Ulrich Weber
OBJECTIVE: To determine the reproducibility of evaluation of sacroiliac joint (SIJ) radiographs among readers with varying levels of experience, and to identify potential drivers of disagreement in classification among 5 predefined radiographic lesion types. METHODS: The study sample consisted of 104 consecutive patients aged 18-40 with low back pain ≥ 3 months of duration who met the Assessment of SpondyloArthritis international Society (ASAS) definition for a positive SIJ magnetic resonance imaging, or were HLA-B27-positive and had ≥ 1 spondyloarthritis (SpA)-related clinical/laboratory feature according to the ASAS classification criteria for axial SpA...
October 15, 2016: Journal of Rheumatology
Bodil Arnbak, Rikke Krüger Jensen, Claus Manniche, Oliver Hendricks, Peter Kent, Anne Grethe Jurik, Tue Secher Jensen
BACKGROUND: The aim of this study was to investigate subgroups of magnetic resonance imaging (MRI) findings for the spine and sacroiliac joints (SIJs) using latent class analysis (LCA), and to investigate whether these subgroups differ in their demographic and clinical characteristics. METHODS: The sample included 1037 patients aged 18-40 years with persistent low back pain (LBP). LCA was applied to MRI findings of the spine and SIJs. The resulting subgroups were tested for differences in self-reported demographic and clinical characteristics...
October 13, 2016: Arthritis Research & Therapy
Preethi S Ganapathy, Careen Y Lowder, Sunil K Srivastava
PURPOSE: HLA-B27-associated uveitis is classically thought to be a disease of the young, with a median age of onset in the 30s. There is a paucity of literature reporting on older individuals with HLA-B27 uveitis. Here, we describe cases of HLA-B27 uveitis presenting initially at age ≥70. METHODS: Retrospective review of patients with HLA-B27-associated uveitis that presented initially at ≥70 years of age. RESULTS: Three patients were identified...
October 11, 2016: Ocular Immunology and Inflammation
David B Guiliano, Helen North, Eleni Panayoitou, Elaine C Campbell, Kirsty McHugh, Fiona G M Cooke, Marine Silvestre, Paul Bowness, Simon J Powis, Antony N Antoniou
Objective - HLA-B27 is associated with the inflammatory spondyloarthropathies (SpAs). Of significance, subtypes HLA-B*27:06 and HLA-B*27:09 are not associated with the SpAs. These subtypes primarily differ from the HLA-B*27:05 disease associated allele at residues 114 and 116 of the heavy chain, part of the F pocket of the antigen-binding groove. Dimerisation of HLA-B27 during assembly has been implicated in disease onset. This study investigated the factors influencing differences in dimerisation between disease associated and non-associated HLA-B27 alleles...
October 9, 2016: Arthritis & Rheumatology
Ankush Kawali, Ringhoo Theresa Jose, Aishwarya, Mathew Kurian, Kushal Kacha, Padmamalini Mahendradas, Rohit Shetty
BACKGROUND: Psycho-immunology is an emerging branch of science which studies the interaction between the brain and the immune system. The purpose of this study is to identify the types of personality factors in patients with non-infectious uveitis and to find its association with a particular uveitic entity if any. This is a prospective, observational, case-control study of 186 patients with non-infectious uveitis (group A) and controls from general ophthalmology outpatient department (group B)...
December 2016: Journal of Ophthalmic Inflammation and Infection
Chaoqun Yang, Peipei Ding, Qingkai Wang, Long Zhang, Xin Zhang, Jianquan Zhao, Enjie Xu, Na Wang, Jianfeng Chen, Guang Yang, Weiguo Hu, Xuhui Zhou
Ankylosing spondylitis (AS) is a chronic axial spondyloarthritis (SpA) resulting in back pain and progressive spinal ankyloses. Currently, there are no effective therapeutics targeting AS largely due to elusive pathogenesis mechanisms, even as potential candidates such as HLA-B27 autoantigen have been identified. Herein, we employed a proteoglycan (PG)-induced AS mouse model together with clinical specimens, and found that the complement system was substantially activated in the spinal bone marrow, accompanied by a remarkable proportion alteration of neutrophils and macrophage in bone marrow and spleen, and by the significant increase of TGF-β1 in serum...
October 4, 2016: Scientific Reports
Fiona Maas, Suzanne Arends, Elisabeth Brouwer, Ivette Essers, Eveline van der Veer, Monique Efde, Peter M A van Ooijen, Rinze Wolf, Nic J G M Veeger, Hendrika Bootsma, Freke R Wink, Anneke Spoorenberg
OBJECTIVE: To evaluate the course of spinal radiographic progression up to 8 years of follow-up in a large cohort of ankylosing spondylitis (AS) patients treated with TNF-α inhibitors. METHODS: Consecutive patients from the Groningen Leeuwarden AS (GLAS) cohort starting TNF-α inhibitors between 2004-2012 were included. Baseline and biannual radiographs were randomized with radiographs of TNF-α naïve AS patients and scored in chronological time order according to mSASSS...
October 1, 2016: Arthritis Care & Research
Manish Kumar Rana, Manni Luthra-Guptasarma
The MHC Class I molecule, HLA-B27, is strongly linked with development of the inflammatory arthritic disease, ankylosing spondylitis (AS); whereas the B*2705 subtype shows strong association, B*2709 is not associated with disease, even though the two subtypes differ in only a single residue at position 116. Currently, attention is focused on the misfolding propensities of these two subtypes, including studies of disulfide-linked dimers and non-covalently formed high molecular weight (HMW) aggregates. Using mutants retaining only a single cysteine at positions C67 or C164, and using a cysteine-reactive, environment-sensitive, fluorescence probe (acrylodan), we find that within the same overall population of identical single-cysteine HLA-B27 molecules, there exist sub-populations which (a) possess free cysteines which react with acrylodan, (b) form disulfide-linked dimers, and (c) form HMW aggregates...
September 28, 2016: International Journal of Biological Macromolecules
Natalia Pereira Machado, Eliana Nogueira, Karen Oseki, Pâmela Carolina Cruz Ebbing, Clarice Silvia Taemi Origassa, Tatiane Mohovic, Niels Olsen Saraiva Câmara, Marcelo de Medeiros Pinheiro
OBJECTIVES: Innate immunity is involved in the physiopathology of ankylosing spondylitis (AS), with the participation of Gram-negative bacteria, modulation of human leukocyte antigen (HLA) B27 and the involvement of pattern recognition receptors, such as Toll-like receptors (TLRs). The aim of this study was to investigate the clinical characteristics and frequency of TLR4 polymorphisms (Asp299Gly and Thr 399Ile) in a cohort of Brazilian patients with AS. METHODS: A cross-sectional study was carried out involving 200 patients with a diagnosis of AS and a healthy control group of 200 individuals...
September 2016: Revista Brasileira de Reumatologia
Laís Uyeda Aivazoglou, Orlando Rondan Zotti, Marcelo de Medeiros Pinheiro, Moacir Ribeiro de Castro Junior, Andrea Puchnick, Artur da Rocha Corrêa Fernandes, Eloy de Ávila Fernandes
OBJECTIVE: To evaluate the imaging features of spondyloarthritis in magnetic resonance imaging (MRI) of the sacroiliac (SI) joint, topography (in thirds) and affected margin, considering that this issue is rarely addressed in the literature. METHODS: Cross-sectional study evaluating MRI (1.5T) of SI joints in 16 patients with axial spondyloarthritis for the presence of acute changes (subchondral bone edema, enthesitis, synovitis and capsulitis) and chronic changes (erosions, subchondral bone sclerosis, bony bridges, and fatty infiltration), performed by two radiologists blind for clinical data...
September 9, 2016: Revista Brasileira de Reumatologia
Oliwia Rysnik, Kirsty McHugh, Leonie van Duivenvoorde, Melissa van Tok, Joel Taurog, Simon Kollnberger, Dominique Baeten, Paul Bowness
Data is presented showing expression of non-conventional (NC) heavy chain forms of B27 in synovial tissues from SpA patients. Data is presented showing the expression patterns of NC-B27 in joint, gastrointestinal and lymphoid tissues from B27 transgenic (TG(1)) rats with M. tuberculosis-induced SpA. Expression of NC-B27 was determined by immunohistochemistry and flow cytometry using HC10 and HD6 antibodies. These data are the extension of the data presented and discussed in "Non-conventional forms of HLA-B27 are expressed in Spondyloarthritis joints and gut tissue" (O...
December 2016: Data in Brief
Mingjie Wang, Xindie Zhou, Hui Zhang, Ruiping Liu, Nanwei Xu
To investigate the roles of the plasma vascular endothelial growth factor (VEGF) level and VEGF gene polymorphisms in ankylosing spondylitis (AS) susceptibility. The plasma VEGF level was measured using an enzyme-linked immunosorbent assay. The VEGF rs2010963 G/C gene polymorphism was analyzed by matrix-assisted laser desorption/ionization time-of-flight mass spectrometry. Our data indicated that the average plasma VEGF concentration in the AS patients was markedly higher than in the controls. Stratification analysis indicated a significant correlation between an elevated plasma VEGF level in AS patients and sex, but not age, HLA-B27, C-reactive protein (CRP), or grade of the sacroiliac joint...
September 13, 2016: Immunology Letters
Anuj Singhal, Darshan Bhakuni, Vishal Marwaha, Vivek Hande, Garvit Bagga
INTRODUCTION: Ankylosing Spondylitis (AS) with non-steroidal anti-inflammatory drug (NSAID) therapeutic failure is treated with biologics. AIM: To compare the clinical outcomes of different biologics for Asian Indian patients with AS who have NSAID therapeutic failure. MATERIALS AND METHODS: Thirty-five AS patients with NSAID failure were administered Etanercept (n=15) (50mg SQ, weekly) or Infliximab (n=20) (5mg/kg IV every 2(nd) month) based on patient convenience or physician discretion as per 2015 ACR/SAA/SPARTAN recommendations...
July 2016: Journal of Clinical and Diagnostic Research: JCDR
Ahmed M Abu El-Asrar, Nele Berghmans, Saleh A Al-Obeidan, Ahmed Mousa, Ghislain Opdenakker, Jo Van Damme, Sofie Struyf
PURPOSE: The purpose of this study was to determine levels of the cytokines IL-1β, IL-6, IL-21, IL-22, and IL-23 and the chemokines CXCL13, CCL19, CCL20, and CCL21 in aqueous humor (AH) samples from patients with specific uveitic entities. METHODS: Paired serum samples (n = 13) and AH samples (n = 111) from patients with active idiopathic granulomatous uveitis (IGU) or with uveitis associated with HLA-B27-related inflammation, Behçet's disease (BD), Vogt-Koyanagi-Harada (VKH) disease, or sarcoidosis and control patients were analyzed in two different multiplex assays...
September 1, 2016: Investigative Ophthalmology & Visual Science
Somsiri Sukavatcharin, Ornsirin Kijdaoroong, Kaevalin Lekhanont, Sakda Arj-Ong Vallipakorn
PURPOSE: To study the etiology and pattern of uveitis in a tertiary ophthalmology center in Thailand. METHODS: A cross-sectional study was conducted on uveitis patients presenting to a uveitis clinic at Ramathibodi Hospital, Thailand, between February 2014 and January 2015. RESULTS: A total of 758 uveitis patients were enrolled into this study. The most common identified cause was herpetic uveitis (17.2%), followed by Vogt-Koyanagi-Harada disease (13...
September 7, 2016: Ocular Immunology and Inflammation
Manish Kumar Rana, Manni Luthra-Guptasarma
A self-derived-peptide with the same amino acid sequence (N-RRYLENGKETLQR-C) as residues 169-181 of the human leukocyte antigen (HLA) B27 heavy chain is known to bind to MHC Class I complexes containing the HLA-B27 heavy chain. This observation has been invoked previously in at least two different (but related) molecular explanations for the disease-association of the HLA-B27 allele. Here, we use a combination of fluorescence polarization, competitive inhibition and gel filtration chromatographic studies to show that a fluorescently-labeled peptide of the above sequence binds to two disease-associated subtypes of HLA-B27 (namely HLA-B*27:04 and HLA-B*27:05) but not to non-disease-associated subtypes (HLA-B*27:06 or HLA-B*27:09)...
September 7, 2016: Protein Journal
L T Hermansen, A G Loft, A A Christiansen, H L Munk, L Gilbert, A G Jurik, B Arnbak, C Manniche, U Weber, M Østergaard, S J Pedersen, T Barington, P Junker, K Hørslev-Petersen, O Hendricks
OBJECTIVES: To investigate whether antibody response patterns against Klebsiella pneumoniae capsular serotypes can discriminate patients with axial spondyloarthritis (axSpA) from patients with non-specific low back pain (LBP). METHOD: Immunoglobulin (Ig)G and IgA antibodies against K. pneumoniae capsular serotypes K2, K26, K36, and K50 were measured, and antibody seropositivity compared between groups and analysed for patient correlation in five different groups: (a) 96 patients fulfilling the Assessment of SpondyloArthritis International Society (ASAS) classification criteria for axSpA; (b) 38 patients with either a positive magnetic resonance imaging (MRI) scan as defined by ASAS or a positive human leucocyte antigen (HLA)-B27 status plus one clinical SpA feature, characterized as 'non-axSpA'; (c) 82 non-specific LBP patients; (d) 40 healthy blood donors and (e) 43 patients with diagnosed ankylosing spondylitis (AS) served as the negative and positive control groups...
September 7, 2016: Scandinavian Journal of Rheumatology
I Yu Razumova, A A Godzenko, O K Vorob'eva, I A Guseva
AIM: to perform a prospective study of clinical presentation and course of uveitis in spondyloarthritis (SpA) patients as well as its association with the HLA-B27 histocompatibility antigen. MATERIAL AND METHODS: The study included 219 patients with uveitis, all tested for HLA-B27 antigen and various infections (viral, bacterial, and parasitic) as well as examined for locomotive system involvement. RESULTS: The presence of the HLA-B27 antigen was determined in 142 (64...
July 2016: Vestnik Oftalmologii
Mohamed G A Saleh, Mansi Parikh, Phoebe Lin
We report a case of an elderly woman with congenital rubella who presented with epithelial downgrowth (EDG) masquerading as hypopyon uveitis. We highlight the importance of endoscopy to completely identify all ingrowing epithelium with combined use of 5-fluorouracil to completely eradicate invading tissue.
September 6, 2016: Ocular Immunology and Inflammation
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