Abstract:
OBJECTIVE:To elucidate factors involved in the arthritogenicity of bacterial cell walls. METHODS:For characterisation of an arthritogenic Eubacterium aerofaciens cell wall, peptidoglycan-polysaccharide (PG-PS) polymers were isolated by removing cell wall associated proteins (CWPs), PG and PS moieties were separated, and an attempt was made to de-O-acetylate PG-PS. The cell wall of E limosum was used as a non-arthritogenic control. The chemical composition of these cell wall preparations was analysed by gas chromatography-mass spectrometry. Also, their ability to resist lysozyme degradation and to sustain experimental chronic arthritis was tested. RESULTS:The observations made with the cell wall of E aerofaciens, an anaerobic habitant of the human intestine, were compared with those reported from a pathogenic Streptococcus, showing that in both strains a complex consisting of PG-PS is required for the induction of chronic arthritis. The PS moiety most probably protects PG from enzyme degradation, allowing prolonged tissue persistence and leading to the chronic synovial inflammation. CWPs attached to PG-PS are not necessary for this function. O-Acetylation of PG, which is required for arthritogenicity of the streptococcal cell wall, seems not to be present in the arthritogenic E aerofaciens PG or only occurs to a small degree; attempts to de-O-acylate the E aerofaciens cell wall did not affect its arthritogenicity or lysozyme resistance. CONCLUSION:The results obtained indicate that the source of bacterial cell wall plays no part in the chemical or structural requirements for PG to induce chronic cell wall arthritis in the rats; the chemical structure of the PG moiety is decisive.
journal_name
Ann Rheum Disjournal_title
Annals of the rheumatic diseasesauthors
Zhang X,Rimpiläinen M,Simelyte E,Toivanen Pdoi
10.1136/ard.60.3.269subject
Has Abstractpub_date
2001-03-01 00:00:00pages
269-74issue
3eissn
0003-4967issn
1468-2060journal_volume
60pub_type
杂志文章abstract:OBJECTIVE:To define the mechanisms whereby methotrexate (MTX) manifests its effects in patients with rheumatoid arthritis. METHODS:T and B cells from peripheral blood and rheumatoid synovial tissues, synovial adherent cells, and the human fibrosarcoma cell line HT1080 and its mutant (defective in an enzyme in the nucl...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.55.4.237
更新日期:1996-04-01 00:00:00
abstract::Erosions on the triquetrum and pisiform are frequent in early rheumatoid arthritis and occur characteristically at 3 sites. (a) A shallow erosion on the proximal medial triquetral "bare" area is related to synovial proliferation at the margin of the radiocarpal cavity, although compressive forces from an adjacent long...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.35.1.46
更新日期:1976-02-01 00:00:00
abstract::Naproxen at 10 mg per kg body weight was compared with aspirin at 80 mg per kg body weight in children suffering from juvenile chronic polyarthritis. It was found to be as effective as aspirin, with certainly no more and possibly fewer gastrointestinal side effects. A long-term tolerance study up to 12 months confirme...
journal_title:Annals of the rheumatic diseases
pub_type: 临床试验,杂志文章
doi:10.1136/ard.38.2.152
更新日期:1979-04-01 00:00:00
abstract:OBJECTIVES:To study the short term effects of a single dose of D2E7, a fully human anti-tumour necrosis factor (TNFalpha) monoclonal antibody (mAb), on the local and systemic homeostasis of interleukin 1beta (IL1beta) and TNFalpha in patients with rheumatoid arthritis (RA). METHODS:All patients with RA enrolled in a p...
journal_title:Annals of the rheumatic diseases
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1136/ard.60.7.660
更新日期:2001-07-01 00:00:00
abstract:OBJECTIVES:To compare the prevalence and pattern of neuropsychiatric (NP) syndromes observed in systemic lupus erythematosus (SLE) to patients with Primary Sjögren syndrome (PSS) using the American College of Rheumatology (ACR) criteria for the 19 NP syndromes seen in SLE. METHODS:A population-based study was conducte...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.2008.098301
更新日期:2009-10-01 00:00:00
abstract:OBJECTIVES:Evidence suggests that doxycycline might have disease-modifying properties in osteoarthritis. However, the clinically relevant question as to whether doxycycline also modifies symptoms in knee osteoarthritis is unanswered. The objective of this study was to investigate the effectiveness of doxycycline on pai...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章,随机对照试验
doi:10.1136/ard.2010.147967
更新日期:2011-07-01 00:00:00
abstract:OBJECTIVES:Systemic sclerosis (SSc) is a rare disease requiring multicentre collaboration to reveal comprehensive details of disease-related causes for morbidity and mortality. METHODS:The European League Against Rheumatism (EULAR) Scleroderma Trials and Research (EUSTAR) group initiated a database to prospectively ga...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章,多中心研究
doi:10.1136/annrheumdis-2011-200742
更新日期:2012-08-01 00:00:00
abstract::Evidence is presented that a single injection of bacterial antigen in oil into a footpad of rats of 5 strains induced different clinical forms of adjuvant disease in the individual rat strains. Rats were injected with 300 micrograms heat-killed Mycobacterium tuberculosis in 50 microliters paraffin. Inflammatory lesion...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.41.5.538
更新日期:1982-10-01 00:00:00
abstract:OBJECTIVES:To compare the efficacy and safety of lumiracoxib with placebo and celecoxib for osteoarthritis OA in a 13 week, multicentre, randomised, double blind study. METHODS:After a 37 day washout period for nonsteroidal antiinflammatory drugs, 1702 patients with knee OA were randomised to lumiracoxib 200 or 400 mg...
journal_title:Annals of the rheumatic diseases
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1136/ard.2003.015974
更新日期:2004-11-01 00:00:00
abstract:OBJECTIVE:To study the demographic and clinical characteristics of patients with antiphospholipid syndrome (APS) with serious haemorrhagic complications of anticoagulant treatment in an attempt to establish risk factors for bleeding. METHODS:Patients with APS who were attending our lupus unit and who presented with se...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.60.5.527
更新日期:2001-05-01 00:00:00
abstract:OBJECTIVE:Regulatory T cells (Tregs) with the plasticity of producing proinflammatory cytokine IL-17 have been demonstrated under normal and pathogenic conditions. However, it remains unclear whether IL-17-producing Tregs lose their suppressive functions because of their plasticity toward Th17 in autoimmunity. The aim ...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/annrheumdis-2013-204228
更新日期:2015-06-01 00:00:00
abstract:BACKGROUND:Psoriatic arthritis (PsA) is a chronic inflammatory disease, characterised by synovitis and destruction of articular cartilage/bone. Janus-kinase and signal transducer and activator of transcription (JAK-STAT) signalling pathway is implicated in the pathogenesis of PsA. OBJECTIVES:To examine the effect of t...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/annrheumdis-2014-207201
更新日期:2016-01-01 00:00:00
abstract:OBJECTIVES:To characterise and quantify the CD4+ CD25+ T cell population in patients with systemic lupus erythematosus (SLE) and to detect the possible influence of treatments and clinical manifestations. METHODS:Characterisation of CD25(low) and CD25(high) CD4+ T cells from healthy controls and from patients with SLE...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.2005.049924
更新日期:2006-11-01 00:00:00
abstract:OBJECTIVES:To study whether hand osteoarthritis (OA) is associated with increased mortality and cardiovascular events in a large community based cohort (Framingham Heart Study) in which OA, mortality and cardiovascular events have been carefully assessed. METHODS:We examined whether symptomatic (≥1 joint(s) with radio...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/annrheumdis-2013-203789
更新日期:2015-01-01 00:00:00
abstract:BACKGROUND:Human osteoarthritic (OA) chondrocytes were previously classified into L (low)- and H (high)-OA according to matrix metalloproteinase-13 (MMP-13) basal levels and interleukin 1beta (IL1beta) inducibility. In H-OA chondrocytes, the regulatory proteins p130(cas) and nuclear matrix protein 4 (NMP4) acting on th...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.2008.092288
更新日期:2009-06-01 00:00:00
abstract::Concanavalin-A-induced T-suppressor cell activity was decreased in spleen cell suspensions from Lewis rats with adjuvant arthritis. This decreased activity was evident on day 10 after the induction of the disease, just before the development of the polyarthritic lesions, and persisted during the period of active infla...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.42.6.693
更新日期:1983-12-01 00:00:00
abstract:BACKGROUND:Antibodies directed to proteins containing the non-standard amino acid citrulline, are extremely specific for rheumatoid arthritis (RA). Peptidylcitrulline can be generated by post-translational conversion of arginine residues. This process, citrullination, is catalysed by a group of calcium dependent peptid...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.2003.012211
更新日期:2004-04-01 00:00:00
abstract::Plasma DNA has been measured by a new physiochemical approach based on fluorimetric analysis of phenol extracted nucleic acids electrophoresed on polyacrylamide gels. This method is specific for native double-stranded DNA of molecular weight greater than 5 x 10(6). The use of plasma rigorously freed of leucocytes is e...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.40.6.593
更新日期:1981-12-01 00:00:00
abstract:BACKGROUND:Vascular damage is a key pathological process in systemic sclerosis (SSc) and accounts for significant disease-related morbidity. To determine the clinical burden of severe digital vasculopathy (SDV), we have reviewed hospital-based treatment for this important complication of SSc in a large single centre co...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.2007.072686
更新日期:2008-01-01 00:00:00
abstract:OBJECTIVES:The recombinant zoster vaccine (RZV) containing a strong non-aluminium adjuvant is associated with increased risk of gout flares, presumably via NLRP3 inflammasome activation. We tested the possibility that other vaccines may also be associated with gout flares. METHODS:We conducted an online case-crossover...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/annrheumdis-2019-215724
更新日期:2019-11-01 00:00:00
abstract:BACKGROUND:Osteoarthritis is the most frequent chronic joint disease causing pain and disability. Besides biomechanical mechanisms, the pathogenesis of osteoarthritis may involve inflammation, vascular alterations and dysregulation of lipid metabolism. As statins are able to modulate many of these processes, this study...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/annrheumdis-2011-200092
更新日期:2012-05-01 00:00:00
abstract::The performance of four different assays for circulating immune complexes-the C1q solid phase method, one using protein A and one using anti-IgG, C1q PEG, and the 2% PEG method-were compared in 61 patients with early rheumatoid arthritis followed up for two years. There were weak but statistically significant correlat...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.44.2.79
更新日期:1985-02-01 00:00:00
abstract:BACKGROUND:Optimal treatment for rheumatoid arthritis (RA) after inadequate response (IR) to tumour necrosis factor α inhibitors (TNFi) remains uncertain. OBJECTIVE:To compare the efficacy and safety of biological agents after TNFi-IR. METHODS:A systematic literature search was carried out using Medline and Cochrane ...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章,meta分析,评审
doi:10.1136/annrheumdis-2011-200490
更新日期:2012-08-01 00:00:00
abstract::A nutritional assessment of 50 patients with rheumatoid arthritis (RA) showed evidence of malnutrition in 13 (26%), while all 50 control subjects had normal nutritional status. Of the anthropometric measurements the body-mass index and triceps skinfold thickness values in men and women were significantly reduced in RA...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.43.3.386
更新日期:1984-06-01 00:00:00
abstract:OBJECTIVES:A prospective randomised trial to compare two different durations of maintenance immunosuppressive therapy for the prevention of relapse in anti-neutrophil cytoplasmic antibodies (ANCA)-associated vasculitis (AAV). METHODS:Patients with AAV were recruited 18-24 months after diagnosis if they were in stable ...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章,随机对照试验
doi:10.1136/annrheumdis-2017-211123
更新日期:2017-10-01 00:00:00
abstract:OBJECTIVES:Immune checkpoint inhibitors (ICIs) targeting cytotoxic T-lymphocyte-associated protein 4 and programmed cell death protein 1 (PD-1) have demonstrated improved survival for multiple cancers. However, these new drug classes have led to increased immune-related adverse events (IrAE). Rheumatic IrAEs have not b...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/annrheumdis-2017-211216
更新日期:2017-10-01 00:00:00
abstract:BACKGROUND:An imbalance in cytokine homoeostasis is thought to have a key role in the neuropsychiatric syndromes of systemic lupus erythematosus (NPSLE), and recently, a role for chemokines has been noted. OBJECTIVE:To compare concentrations of monocyte chemotactic protein-1 (MCP-1)/CCL2 in cerebral spinal fluid (CSF)...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.2005.041640
更新日期:2006-02-01 00:00:00
abstract:OBJECTIVE:To study the feasibility and validity of a two-step telephone screening procedure for symptomatic knee and hip osteoarthritis (OA) in the general population. METHOD:The screening questionnaire was based on signs and symptoms, previous diagnosis of OA and validated OA criteria. A random sample of telephone nu...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章
doi:10.1136/ard.2007.075952
更新日期:2008-10-01 00:00:00
abstract:BACKGROUND:Knee osteoarthritis (OA) is a major cause of pain and functional limitation in older adults, yet longer-term studies of medical treatment of OA are limited. OBJECTIVE:To evaluate the efficacy and safety of glucosamine and chondroitin sulphate (CS), alone or in combination, as well as celecoxib and placebo o...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1136/ard.2009.120469
更新日期:2010-08-01 00:00:00
abstract:OBJECTIVES:Lipid profiles are altered by active disease in patients with rheumatoid arthritis (RA) and may be further modified by treatment with Janus kinase inhibitors and other disease-modifying antirheumatic drugs. METHODS:Lipid data were analysed from phase II and III studies of 4 mg (n=997) and 2 mg (n=479) oral ...
journal_title:Annals of the rheumatic diseases
pub_type: 杂志文章,评审
doi:10.1136/annrheumdis-2017-212461
更新日期:2018-07-01 00:00:00