Abstract:
BACKGROUND:Ankylosing spondylitis (AS) shares many characteristics with inflammatory bowel disease (IBD). Intestinal microbiota most likely plays an important role in the development of IBDs and may also be involved in the pathogenesis of AS. We aimed to define and compare the fecal microbiota composition in patients with AS, ulcerative colitis (UC), and healthy controls (HC) and to determine relationships between fecal microbiota, fecal calprotectin, and disease-related variables in AS. METHODS:Fecal microbiota composition was assessed with GA-map™ Dysbiosis Test (Genetic Analysis, Oslo, Norway), which also reports the degree of deviation of the microbiota composition compared with a healthy control population, a Dysbiosis Index (DI) score 1-5. The AS patients were assessed with questionnaires, back mobility tests, fecal calprotectin, erythrocyte sedimentation rate (ESR), and C-reactive protein (CRP). RESULTS:Totally, 150 patients with AS (55% men, median age 55.5 years, median BASDAI 3.2), 18 patients with UC (56% men, median age 30.5 years), and 17 HC (65% men, median age 22 years) were included. Principal component analysis showed highly separate clustering of fecal microbiota from the patients with AS, UC, and HC. Compared with HC, fecal microbiota in AS was characterized by a higher abundance of Proteobacteria, Enterobacteriaceae, Bacilli, Streptococcus species, and Actinobacteria, but lower abundance of Bacteroides and Lachnospiraceae. Further, fecal microbiota composition differed between patients with normal (≤ 50 mg/kg, n = 57) and increased (≥ 200 mg/kg, n = 36) fecal calprotectin. Patients with increased fecal calprotectin had lower abundance of bacteria with anti-inflammatory properties such as Faecalibacterium prausnitzii and Clostridium and higher abundance of the genus Streptococcus. No association was found between the fecal microbiota composition and HLAB27 status, disease activity, function, or medication. Dysbiosis (defined as DI ≥ 3) was found in 87% of AS patients. CONCLUSIONS:Patients with AS have a distinct fecal microbiota signature, which is linked to fecal calprotectin levels, a marker of intestinal inflammation, but not to other clinical parameters. These findings suggest a local interplay between intestinal microbiota and gut inflammation in AS. TRIAL REGISTRATION:ClinicalTrials.gov, NCT00858819. Registered March 9, 2009.
journal_name
Arthritis Res Therjournal_title
Arthritis research & therapyauthors
Klingberg E,Magnusson MK,Strid H,Deminger A,Ståhl A,Sundin J,Simrén M,Carlsten H,Öhman L,Forsblad-d'Elia Hdoi
10.1186/s13075-019-2018-4subject
Has Abstractpub_date
2019-11-27 00:00:00pages
248issue
1eissn
1478-6354issn
1478-6362pii
10.1186/s13075-019-2018-4journal_volume
21pub_type
杂志文章abstract::Behçet's disease is characterized by recurrent aphthous stomatitis, uveitis, genital ulcers, and skin lesions. The role of the HLA-B*51 gene has been confirmed in recent years, although its contribution to the overall genetic susceptibility to Behçet's disease was estimated to be only 19%. The production of a variety ...
journal_title:Arthritis research & therapy
pub_type: 杂志文章,评审
doi:10.1186/ar757
更新日期:2003-01-01 00:00:00
abstract:INTRODUCTION:The purpose of this study was the evaluation of synovial effusion (SE), synovial fluid (SF) and synovial tissue (ST) biomarkers in relation to disease activity indexes to assess the response to intraarticular (IA) tumor necrosis factor (TNF)-α blockers in psoriatic arthritis (PsA). METHODS:Systemic and lo...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar3090
更新日期:2010-01-01 00:00:00
abstract:INTRODUCTION:Lesional skin of patients with discoid lupus erythematosus (DLE) contains macrophages, whose polarization has yet to be investigated. To test our hypothesis that M1 macrophages would be increased in DLE skin, we examined transcriptome alterations in immune cell gene expression and macrophage features in DL...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/s13075-015-0839-3
更新日期:2015-11-13 00:00:00
abstract:INTRODUCTION:The major histocompatibility complex (H-2d) and non-major histocompatibility complex genetic backgrounds make the BALB/c strain highly susceptible to inflammatory arthritis and spondylitis. Although different BALB/c colonies develop proteoglycan-induced arthritis and proteoglycan-induced spondylitis in res...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar2613
更新日期:2009-01-01 00:00:00
abstract::Glucosamine in its acetylated form is a natural constituent of some glycosaminoglycans (for example, hyaluronic acid and keratan sulfate) in the proteoglycans found in articular cartilage, intervertebral disc and synovial fluid. Glucosamine can be extracted and stabilized by chemical modification and used as a drug or...
journal_title:Arthritis research & therapy
pub_type: 杂志文章,评审
doi:10.1186/ar3657
更新日期:2012-01-30 00:00:00
abstract:BACKGROUND:The aim was to further characterize immunoglobulin G4-related disease (IgG4-RD) by a large-scale multicenter study of its clinical and laboratory features conducted by multidisciplinary physicians of IgG4-RD in Japan. METHODS:Various specialists retrospectively evaluated IgG4-RD patients diagnosed between 1...
journal_title:Arthritis research & therapy
pub_type: 杂志文章,多中心研究
doi:10.1186/s13075-017-1467-x
更新日期:2017-12-01 00:00:00
abstract::The clinical spectrum of the anti-phospholipid syndrome (APS) is not limited to vascular thrombosis or miscarriages but includes additional manifestations that cannot be explained solely by a thrombophilic state. Anti-cardiolipin, anti-beta₂ glycoprotein I (anti-β₂GPI) and lupus anticoagulant (LA) assays are not only ...
journal_title:Arthritis research & therapy
pub_type: 杂志文章,评审
doi:10.1186/ar4549
更新日期:2014-01-01 00:00:00
abstract::Over the last decades, genetic factors for rheumatoid diseases like the HLA haplotypes have been studied extensively. However, during the past years of research, it has become more and more evident that the influence of epigenetic processes on the development of rheumatic diseases is probably as strong as the genetic ...
journal_title:Arthritis research & therapy
pub_type: 杂志文章,评审
doi:10.1186/ar2500
更新日期:2008-01-01 00:00:00
abstract:INTRODUCTION:Enhanced B cell activity, particularly memory B cells have gained interest in evaluating response during therapies with biologics. CD27-IgD- double-negative (DN) B cells lacking the conventional memory marker CD27 are reported to be part of the memory compartment, however, only scarce data is available for...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/s13075-015-0580-y
更新日期:2015-03-14 00:00:00
abstract:BACKGROUND:Risk prediction algorithms increase understanding of which patients are at greatest risk of a harmful outcome. Our goal was to create a clinically useful prediction algorithm for structural progression of knee osteoarthritis (OA), using medial joint space loss as a proxy; and to quantify the benefit of inclu...
journal_title:Arthritis research & therapy
pub_type: 杂志文章,多中心研究
doi:10.1186/s13075-017-1291-3
更新日期:2017-05-16 00:00:00
abstract:INTRODUCTION:An adjuvanted pandemic H1N1 influenza (pH1N1) vaccine (Pandemrix) was reported as highly immunogenic resulting in seroconversion in 77 to 94% of adults after administration of a single dose. The aim of the study was to investigate the impact of different anti-rheumatic treatments on antibody response to pH...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar4427
更新日期:2014-01-02 00:00:00
abstract::We investigated the therapeutic potential and mechanism of action of IFN-beta protein for the treatment of rheumatoid arthritis (RA). Collagen-induced arthritis was induced in DBA/1 mice. At the first clinical sign of disease, mice were given daily injections of recombinant mouse IFN-beta or saline for 7 days. Disease...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar1165
更新日期:2004-01-01 00:00:00
abstract:BACKGROUND:Rheumatoid arthritis-associated interstitial lung disease (RA-ILD) is a sometimes life-threatening complication in RA patients. SKG mice develop not only arthritis but also an ILD resembling RA-ILD. We previously reported that tofacitinib, a JAK inhibitor, facilitates the expansion of myeloid-derived suppres...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/s13075-019-1963-2
更新日期:2019-08-06 00:00:00
abstract::Decreased number and impaired functions of endothelial progenitor cells (EPCs) leading to impaired vasculogenesis have been associated with rheumatoid arthritis (RA). Defective vasculogenesis has also been implicated in premature atherosclerosis in RA. Recently, early-outgrowth monocytic and late-outgrowth hemangiobla...
journal_title:Arthritis research & therapy
pub_type: 评论,社论
doi:10.1186/ar2943
更新日期:2010-01-01 00:00:00
abstract:INTRODUCTION:Disease-modifying antirheumatic drugs (DMARDs) have become the treatment standard for patients with rheumatoid arthritis (RA). Although several general-population studies document that a large population of patients diagnosed with RA do not use DMARDs, little is known about this group. We explored the char...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar4459
更新日期:2014-01-29 00:00:00
abstract:BACKGROUND:Toll-like receptors (TLRs) and macrophages play an important role in rheumatoid arthritis (RA). Currently, it is not clear whether inflammatory M1 or anti-inflammatory M2 predominate among the resident macrophages in the synovium. In the present study, we set out to investigate the impact of TLR stimulation ...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/s13075-017-1447-1
更新日期:2017-11-02 00:00:00
abstract::The detection of autoantibodies in human sera is an important approach to the diagnosis and management of patients with autoimmune conditions. To meet market demands, manufacturers have developed a wide variety of easy to use and cost-effective diagnostic kits that are designed to detect a variety of human serum autoa...
journal_title:Arthritis research & therapy
pub_type: 杂志文章,评审
doi:10.1186/ar782
更新日期:2003-01-01 00:00:00
abstract:BACKGROUND:Reactive oxygen species (ROS) regulate the migration and invasion of fibroblast-like synoviocytes (FLS), which are key effector cells in rheumatoid arthritis (RA) pathogenesis. Nicotinamide adenine dinucleotide phosphate oxidase 4 (NOX4) induces ROS generation and, consequently, enhances cell migration. Desp...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/s13075-020-02204-0
更新日期:2020-05-15 00:00:00
abstract:INTRODUCTION:The aim of the study was to determine whether Olf1/EBF associated zinc finger protein (OAZ), a transcription factor encoded by a positional systemic lupus erythematosus (SLE) candidate gene, plays a functional role in the pathogenesis in SLE. METHODS:Gene expression levels in peripheral blood cells (PBLs)...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar2972
更新日期:2010-01-01 00:00:00
abstract:BACKGROUND:The receptor activator of NF-κB ligand (RANKL), a member of the TNF ligand superfamily, is known to regulate bone metabolism. The expression of each component of the RANK/RANKL/osteoprotegerin (OPG) system in the intervertebral disc (IVD) has not been examined in detail. The purposes of this study were to ex...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/s13075-017-1332-y
更新日期:2017-06-02 00:00:00
abstract:INTRODUCTION:Nucleus pulposus (NP) cells have a phenotype similar to articular cartilage (AC) cells. However, the matrix of the NP is clearly different to that of AC suggesting that specific cell phenotypes exist. The aim of this study was to identify novel genes that could be used to distinguish bovine NP cells from A...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar2929
更新日期:2010-01-01 00:00:00
abstract::The transcription factor STAT-1 (signal transducer and activator of transcription-1) plays a pivotal role in the expression of inflammatory gene products involved in the pathogenesis of arthritis such as various cytokines and the CD40/CD40 ligand (CD40/CD40L) receptor-ligand dyad. The therapeutic efficacy of a synthet...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar1869
更新日期:2006-01-01 00:00:00
abstract:INTRODUCTION:The objective of this study was to examine the association between occupation and osteoarthritis (OA) leading to total knee (TKR) or hip (THR) joint replacement. METHODS:The following is the case-control study design. All patients still living in Iceland who had had a TKR or THR due to OA as of the end of...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar3033
更新日期:2010-01-01 00:00:00
abstract:INTRODUCTION:The arthritis-specific Work Productivity Survey (WPS) was developed to evaluate productivity limitations associated with arthritis within and outside the home. There is an unmet need for an instrument assessing similar productivity limitations in axial spondyloarthritis (axSpA), including nonradiographic a...
journal_title:Arthritis research & therapy
pub_type: 杂志文章,随机对照试验
doi:10.1186/ar4680
更新日期:2014-08-06 00:00:00
abstract:BACKGROUND:Glomerulonephritis is one of the major complications and causes of death in systemic lupus erythematosus (SLE) and is characterized by glomerulosclerosis, interstitial fibrosis, and tubular atrophy, along with severe persistent proteinuria. DZ2002 is a reversible S-adenosyl-L-homocysteine hydrolase (SAHH) in...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/s13075-019-1820-3
更新日期:2019-01-29 00:00:00
abstract::T-helper (Th) lymphocytes contribute to arthritis pathogenesis by helping B cells to produce antibodies, by producing cytokines that activate effector cells involved in the destruction of cartilage and bone, and by contributing to osteoclast differentiation. There are murine models of arthritis, most notably collagen-...
journal_title:Arthritis research & therapy
pub_type: 评论,社论
doi:10.1186/ar3008
更新日期:2010-01-01 00:00:00
abstract:INTRODUCTION:NLRP3 plays a role in sensing various pathogen components or stresses in the innate immune system. Once activated, NLRP3 associates with apoptosis-associated speck-like protein containing a caspase recruitment domain (ASC) and procaspase-1 to form a large protein complex termed inflammasome. Although some ...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar4483
更新日期:2014-02-12 00:00:00
abstract:INTRODUCTION:Mesenchymal stem cells (MSCs) can differentiate into various connective tissue cells. Several techniques have been used for the clinical application of MSCs in articular cartilage repair; however, there are many issues associated with the selection of the scaffold material, including its ability to support...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/ar3735
更新日期:2012-02-07 00:00:00
abstract:INTRODUCTION:C-reactive protein (CRP) is one of the biomarkers for the diagnosis and assessment of disease activity in rheumatoid arthritis (RA). CRP is not only the by-product of inflammatory response, but also plays proinflammatory and prothrombotic roles. The aim of this study was to determine the role of CRP on bon...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/s13075-015-0563-z
更新日期:2015-03-04 00:00:00
abstract:BACKGROUND:Persistence of biologic therapy in psoriatic arthritis (PsA) patients is an important factor in individualized patient treatment planning and healthcare policy and guideline development. OBJECTIVE:To estimate the persistence of biologic agents prescribed to PsA patients in a real-life setting as well as fac...
journal_title:Arthritis research & therapy
pub_type: 杂志文章
doi:10.1186/s13075-021-02417-x
更新日期:2021-01-29 00:00:00