Abstract:
:Synovial fluids of patients suffering from rheumatoid arthritis contain elevated levels of granulocyte (PMN) elastase in complex with alpha 1-proteinase inhibitor (alpha 1-PI), whereas free-elastase activity is usually not detectable. This absence of free enzymatic activity in joint effusions has cast some doubt on the pathophysiological relevance of PMN elastase in inflammatory joint destruction. Our in vitro experiments using bovine nasal cartilage demonstrate that incubation with elastase and alpha 1-PI in equimolar concentrations to or even in excess of the serum proteinase inhibitor resulted in significant tissue destruction as assessed by histological staining for proteoglycans, release of uronic acid from the matrix and loss of mechanical stability. Though in the supernatants containing alpha 1-PI, free-elastase activity was not detectable, immunofluorescent staining for elastase evidenced penetration of the enzyme into the matrix. Simultaneous measurements of the incubation media employing a sandwich enzyme-linked immunoadsorption assay (ELISA) revealed PMN elastase in complex with alpha 1-PI but without correlation to the parameters of tissue degradation. In comparison with the results obtained using the chromogenic substrate Suc-Ala-Ala-Ala-pNA (SAPA) for titration of alpha 1-PI against elastase, the employment of cartilage matrix showed that a fourfold increase in inhibitor concentration was necessary to achieve 100% enzyme inhibition. Hence, cartilage surface obviously interferes with the interaction between alpha 1-PI and elastase. Measurements of elastase-inhibitor concentrations or free enzymatic activity in synovial fluid seem to have limited value in predicting cartilage destruction.
journal_name
Rheumatol Intjournal_title
Rheumatology internationalauthors
Burkhardt H,Kasten M,Rauls S,Rehkopf Edoi
10.1007/BF00270466subject
Has Abstractpub_date
1987-01-01 00:00:00pages
133-8issue
3eissn
0172-8172issn
1437-160Xjournal_volume
7pub_type
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journal_title:Rheumatology international
pub_type: 杂志文章
doi:10.1007/BF00541379
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journal_title:Rheumatology international
pub_type: 杂志文章,meta分析
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journal_title:Rheumatology international
pub_type: 杂志文章
doi:10.1007/BF00300811
更新日期:1994-01-01 00:00:00
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journal_title:Rheumatology international
pub_type: 杂志文章
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更新日期:2002-01-01 00:00:00
abstract::Ankylosing spondylitis (AS) is a chronic inflammatory disease primarily involving the spine and sacroiliac joint and rarely the kidneys. This study aimed to define the clinical and histological features and biology of renal disease in AS. We reviewed the medical records of 681 patients diagnosed with AS from November ...
journal_title:Rheumatology international
pub_type: 杂志文章
doi:10.1007/s00296-012-2624-9
更新日期:2013-07-01 00:00:00
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pub_type: 杂志文章
doi:10.1007/s00296-008-0523-x
更新日期:2008-06-01 00:00:00
abstract::Rheumatoid arthritis (RA) in Thai population is significantly associated with HLA-DR4 shared epitope (SE) alleles, particularly with DRB1*0405 (P = 0.00004, OR = 3.84, 95% CI = 1.93, 7.7). In addition, tumor necrosis factor-alpha (TNF-alpha) gene -863A alleles were found to be significantly increased in 77 RA patients...
journal_title:Rheumatology international
pub_type: 杂志文章
doi:10.1007/s00296-007-0392-8
更新日期:2007-12-01 00:00:00
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journal_title:Rheumatology international
pub_type: 杂志文章
doi:10.1007/s00296-004-0460-2
更新日期:2005-08-01 00:00:00
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journal_title:Rheumatology international
pub_type: 杂志文章
doi:10.1007/s00296-017-3844-9
更新日期:2017-12-01 00:00:00
abstract::Total hip arthroplasty (THA) and total knee arthroplasty (TKA) bring relief of pain and functional disability to patients with end-stage osteoarthritis, and however, the literature on their impact on patients' level of physical activity (PA) is scarce. Cross-sectional study in patients who underwent THA/TKA surgery in...
journal_title:Rheumatology international
pub_type: 杂志文章
doi:10.1007/s00296-016-3598-9
更新日期:2017-02-01 00:00:00
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journal_title:Rheumatology international
pub_type: 杂志文章,多中心研究
doi:10.1007/s00296-016-3499-y
更新日期:2016-07-01 00:00:00
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journal_title:Rheumatology international
pub_type: 信件
doi:10.1007/s00296-012-2424-2
更新日期:2013-08-01 00:00:00
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journal_title:Rheumatology international
pub_type: 杂志文章
doi:10.1007/s00296-008-0722-5
更新日期:2009-03-01 00:00:00
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journal_title:Rheumatology international
pub_type: 杂志文章
doi:10.1007/s00296-018-4058-5
更新日期:2018-10-01 00:00:00
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journal_title:Rheumatology international
pub_type: 杂志文章
doi:10.1007/s00296-002-0255-2
更新日期:2003-03-01 00:00:00
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journal_title:Rheumatology international
pub_type: 杂志文章,评审
doi:10.1007/s00296-019-04501-7
更新日期:2020-02-01 00:00:00
abstract::IL-17 has a role in inflammation in RA, and its levels in joints correlate with disease severity. Multiple RCTs have been performed to study effects of anti-IL-17 agents. The objective of this study was to perform a systematic review and meta-analysis to analyze the efficacy and safety of anti-IL-17 agents in the mana...
journal_title:Rheumatology international
pub_type: 杂志文章,meta分析,评审
doi:10.1007/s00296-016-3480-9
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journal_title:Rheumatology international
pub_type: 杂志文章
doi:10.1007/s00296-018-4117-y
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journal_title:Rheumatology international
pub_type: 杂志文章
doi:10.1007/BF00271873
更新日期:1989-01-01 00:00:00
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pub_type: 杂志文章,评审
doi:10.1007/s00296-017-3912-1
更新日期:2018-05-01 00:00:00
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journal_title:Rheumatology international
pub_type: 杂志文章,meta分析
doi:10.1007/s00296-006-0175-7
更新日期:2006-12-01 00:00:00
abstract::Chlamydia trachomatis (Ct)-induced arthritis (CtIA) is characterized by persistent Ct infection, which stimulates secretion of cytokines in vitro. We therefore investigated whether CtIA patients have a unique cytokine profile in synovial fluid or serum in vivo. Because underlying Ct infection is overlooked in a high p...
journal_title:Rheumatology international
pub_type: 杂志文章
doi:10.1007/s00296-003-0393-1
更新日期:2005-01-01 00:00:00
abstract::Low molecular weight IgM (LMW IgM) is the monomeric subunit of the naturally occurring pentameric IgM. It is not seen in health but has been previously observed in systemic lupus erythematosus (SLE) particularly in those patients with active disease and may reflect an adverse prognostic finding. We have therefore stud...
journal_title:Rheumatology international
pub_type: 杂志文章
doi:10.1007/BF02274821
更新日期:1990-01-01 00:00:00
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journal_title:Rheumatology international
pub_type: 杂志文章
doi:10.1007/s00296-010-1388-3
更新日期:2012-06-01 00:00:00
abstract::The efficacy of balneotherapy in fibromyalgia syndrome (FS) has been well demonstrated, while controlled studies using mud packs are lacking. We performed a randomized clinical trial to evaluate the effects and the tolerability of mud-bath treatment in FS patients, who are poor responders to pharmacological therapy. E...
journal_title:Rheumatology international
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1007/s00296-007-0358-x
更新日期:2007-10-01 00:00:00
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journal_title:Rheumatology international
pub_type: 杂志文章
doi:10.1007/s00296-008-0685-6
更新日期:2008-10-01 00:00:00
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journal_title:Rheumatology international
pub_type: 杂志文章
doi:10.1007/s00296-016-3517-0
更新日期:2016-09-01 00:00:00
abstract::Regulatory T cells (Tregs) are supposed to stop immune responses in the course of immune activation. However, chronic activation of immune system in systemic lupus erythematosus (SLE) and many other autoreactive disorders are evidence of malfunction of this system. Therefore, it is plausible to quantify presence of th...
journal_title:Rheumatology international
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00296-010-1427-0
更新日期:2011-09-01 00:00:00
abstract::Psoriatic arthritis (PsA) patients are at a higher risk of systemic inflammatory sequelae, leading to microalbuminuria, cardiovascular (CVD) and neuropsychiatric (NPD) disease. Our aim is to present the existing literature about the relationship between CVD, kidney and NPD in PsA. The literature evaluation of PsA reve...
journal_title:Rheumatology international
pub_type: 杂志文章,评审
doi:10.1007/s00296-020-04633-1
更新日期:2020-09-01 00:00:00