J. Sieper

Publication List Details

Period

2002 - 2008

Number

67

Co-Authors

Development of a core set of domains for data collection in cohorts of patients with Ankylosing Spondylitis receiving anti-tumor necrosis Factor-α therapy (2008)

Zochling, JM, Sieper, J, Braun, J

Objective. To create a core set of measurement concepts for use in the creation and maintenance of anti-tumor necrosis factor-α patient registries in ankylosing spondylitis (AS). Methods. A...

Development of a core set of domains for data collection in cohorts of patients with Ankylosing Spondylitis receiving anti-tumor necrosis Factor-α therapy (2008)

Zochling, JM, Sieper, J, Braun, J

Objective. To create a core set of measurement concepts for use in the creation and maintenance of anti-tumor necrosis factor-α patient registries in ankylosing spondylitis (AS). Methods. A...

Efficacy and Safety of Infliximab in Patients With Ankylosing Spondylitis (2005)

Dijkmans, B., Sieper, J., DeWoody, K., Williamson, P., ...

Objective. The signs and symptoms of ankylosing spondylitis (AS) respond inadequately to nonsteroidal antiinflammatory drugs, corticosteroids, and diseasemodifying antirheumatic drugs in quite a...

Efficacy and Safety of Infliximab in Patients With Ankylosing Spondylitis (2005)

Dijkmans, B., Sieper, J., DeWoody, K., Williamson, P., ...

Objective. The signs and symptoms of ankylosing spondylitis (AS) respond inadequately to nonsteroidal antiinflammatory drugs, corticosteroids, and diseasemodifying antirheumatic drugs in quite a...

Efficacy and Safety of Infliximab in Patients With Ankylosing Spondylitis (2005)

Dijkmans, B., GEUSENS, Piet, Sieper, J., DeWoody, K., Williamson, P., ...

Objective. The signs and symptoms of ankylosing spondylitis (AS) respond inadequately to nonsteroidal antiinflammatory drugs, corticosteroids, and diseasemodifying antirheumatic drugs in quite a...

Efficacy and safety of infliximab in patients with ankylosing spondylitis: Results of a 24-week randomized, placebo-controlled trial (ASSERT) (2004)

Dijkmans, B, Sieper, J, DeWoody, K, Williamson, R, Braun, J, VAN DER HEIJDE, Desiree, ...

Univ Hosp Maastricht, Dept Rheumatol, Maastricht, Netherlands. Vrije Univ Amsterdam, Acad Ziekenhuis, Dept Rheumatol, Amsterdam, Netherlands. Limburgs Univ Ctr, Diepenbeek, Belgium. Free Univ Berlin,...

Efficacy and safety of infliximab in patients with ankylosing spondylitis: Results of a 24-week randomized, placebo-controlled trial (ASSERT) (2004)

Dijkmans, B, Sieper, J, DeWoody, K, Williamson, R, Braun, J, VAN DER HEIJDE, Desiree, ...

Univ Hosp Maastricht, Dept Rheumatol, Maastricht, Netherlands. Vrije Univ Amsterdam, Acad Ziekenhuis, Dept Rheumatol, Amsterdam, Netherlands. Limburgs Univ Ctr, Diepenbeek, Belgium. Free Univ Berlin,...

Diagnosing reactive arthritis - Role of clinical setting in the value of serologic and microbiologic assays (2002)

Sieper, J, Rudwaleit, M, Braun, J, VAN DER HEIJDE, Desiree

Free Univ Berlin, Klinikum Benjamin Franklin, D-12200 Berlin, Germany. German Rheumatol Res Ctr, Berlin, Germany. Univ Hosp Maastricht, Maastricht, Netherlands. Limburgs Univ Ctr, Diepenbeek,...

Diagnosing reactive arthritis - Role of clinical setting in the value of serologic and microbiologic assays (2002)

Sieper, J, Rudwaleit, M, Braun, J, VAN DER HEIJDE, Desiree

Free Univ Berlin, Klinikum Benjamin Franklin, D-12200 Berlin, Germany. German Rheumatol Res Ctr, Berlin, Germany. Univ Hosp Maastricht, Maastricht, Netherlands. Limburgs Univ Ctr, Diepenbeek,...

Divergent T-cell cytokine patterns in inflammatory arthritis.

Simon, A K, Seipelt, E, Sieper, J

A major immunoregulatory mechanism in inflammatory infections and allergic diseases is the control of the balance of cytokines secreted by Th1/Th2 subsets of T helper (Th) cells. This might also be...

Divergent T-cell cytokine patterns in inflammatory arthritis.

Simon, A K, Seipelt, E, Sieper, J

A major immunoregulatory mechanism in inflammatory infections and allergic diseases is the control of the balance of cytokines secreted by Th1/Th2 subsets of T helper (Th) cells. This might also be...

Cellular immunity to cartilage proteoglycans: relevance to the pathogenesis of ankylosing spondylitis.

Jobanputra, P, Choy, E H, Kingsley, G H, Sieper, J, Palacios-Boix, A A, Heinegård, D, ...

Cellular immunity to cartilage proteoglycans may be responsible for sustaining chronic inflammation in ankylosing spondylitis. This hypothesis was examined by measuring peripheral blood and synovial...

Chlamydia pneumoniae--a new causative agent of reactive arthritis and undifferentiated oligoarthritis.

Braun, J, Laitko, S, Treharne, J, Eggens, U, Wu, P, Distler, A, ...

OBJECTIVE--To examine whether reactive arthritis (ReA) known to occur after a urogenital infection with Chlamydia trachomatis can also follow an infection with Chlamydia pneumoniae, a recently...

Aetiological role of bacteria associated with reactive arthritis in pauciarticular juvenile chronic arthritis.

Sieper, J, Braun, J, Döring, E, Wu, P, Heesemann, J, Treharne, J, ...

BACKGROUND: The cause of juvenile chronic arthritis (JCA) is unknown. Pauciarticular JCA is the most common subtype and can be subdivided into early (type I) and late onset (type II) forms, the...

Quantitative analyses of sacroiliac biopsies in spondyloarthropathies: T cells and macrophages predominate in early and active sacroiliitis— cellularity correlates with the degree of enhancement detected by magnetic resonance imaging

Bollow, M, Fischer, T, ReiBhauer, H, Backhaus, M, Sieper, J, Hamm, B, ...

OBJECTIVE—Sacroiliitis is a hallmark of the spondyloarthropathies (SpA). The degree of inflammation can be quantified by magnetic resonance imaging (MRI). The aim of this study was to further...

Response to methotrexate in early rheumatoid arthritis is associated with a decrease of T cell derived tumour necrosis factor α, increase of interleukin 10, and predicted by the initial concentration of interleukin 4

Rudwaleit, M., Yin, Z., Siegert, S., Grolms, M., Radbruch, A., Braun, J., ...

OBJECTIVE—This study was performed to assess whether there is any change in the T cell cytokine pattern in early rheumatoid arthritis (RA) patients treated with methotrexate (MTX) and whether the...

Low T cell production of TNFα and IFNγ in ankylosing spondylitis: its relation to HLA-B27 and influence of the TNF-308 gene polymorphism

Rudwaleit, M, Siegert, S, Yin, Z, Eick, J, Thiel, A, Radbruch, A, ...

OBJECTIVE—To test the hypothesis that ankylosing spondylitis (AS) is a T helper cell type 2 polarised disease by quantifying the T cell cytokines interferon γ (IFNγ), interleukin 4 (IL4),...

Low incidence of reactive arthritis in children following a salmonella outbreak

Rudwaleit, M, Richter, S, Braun, J, Sieper, J

OBJECTIVES—To assess the incidence of reactive arthritis (ReA) in an outbreak of salmonella infection in a large cohort of children in Germany.
METHODS—A few days after the salmonella outbreak...

Frequency of triggering bacteria in patients with reactive arthritis and undifferentiated oligoarthritis and the relative importance of the tests used for diagnosis

Fendler, C, Laitko, S, Sorensen, H, Gripenberg-Lerche, C, Groh, A, Uksila, J, ...

OBJECTIVE—Reactive arthritis (ReA) triggered by Chlamydia trachomatis or enteric bacteria such as yersinia, salmonella, Campylobacter jejuni, or shigella is an important differential diagnosis in...

Atopic disorders in ankylosing spondylitis and rheumatoid arthritis

Rudwaleit, M, Andermann, B, Alten, R, Sorensen, H, Listing, J, Zink, A, ...

Background: The prevalence of atopic disorders in ankylosing spondylitis (AS) is unknown. AS and rheumatoid arthritis (RA) exhibit divergent T helper (Th) cell cytokine patterns.

Up regulation of the production of tumour necrosis factor α and interferon γ by T cells in ankylosing spondylitis during treatment with etanercept

Zou, J, Rudwaleit, M, Brandt, J, Thiel, A, Braun, J, Sieper, J

Objective: To assess the change in the cytokine secreting ability of CD4+ and CD8+ T cells and macrophages during etanercept treatment.

International ASAS consensus statement for the use of anti-tumour necrosis factor agents in patients with ankylosing spondylitis

Braun, J, Pham, T, Sieper, J, Davis, J, Dougados, M, ...

Objective: To obtain an international consensus about the use of anti-tumour necrosis factor α (anti-TNFα) for treating patients with ankylosing spondylitis (AS).

Ankylosing spondylitis: an overview

Sieper, J, Braun, J, Rudwaleit, M, Boonen, A, Zink, A

Ankylosing spondylitis (AS) is a complex, potentially debilitating disease that is insidious in onset, progressing to radiological sacroiliitis over several years. Patients with symptomatic AS lose...

Anti-tumour necrosis factor α therapy for ankylosing spondylitis: international experience

Braun, J, Sieper, J, Breban, M, Collantes-Estevez, E, Davis, J, Inman, R, ...

The conventional approach to treatment of patients with spondyloarthritis (SpA), particularly ankylosing spondylitis (AS), has serious limitations, adding a sense of urgency to the evaluation of new...

Staging of patients with ankylosing spondylitis: a preliminary proposal

Braun, J, Dougados, M, Emery, P, Khan, M, Sieper, J, ...

Patients with ankylosing spondylitis (AS) are characterised by a wide range of clinical presentations, radiographic profiles, and outcomes, which are not well differentiated by current diagnostic and...

How to diagnose axial spondyloarthritis early

Rudwaleit, M, Khan, M, Braun, J, Sieper, J

Background: Chronic low back pain (LBP), the leading symptom of ankylosing spondylitis (AS) and undifferentiated axial spondyloarthritis (SpA), precedes the development of radiographic sacroiliitis,...

Prediction of a major clinical response (BASDAI 50) to tumour necrosis factor α blockers in ankylosing spondylitis

Rudwaleit, M, Listing, J, Brandt, J, Braun, J, Sieper, J

Background: TNFα blockers have been shown to be highly efficacious in patients with active ankylosing spondylitis (AS).

Analysis of cytokine profiles in synovial T cell clones from chlamydial reactive arthritis patients: predominance of the Th1 subset.

Simon, A K, Seipelt, E, Wu, P, Wenzel, B, Braun, J, Sieper, J

Subpopulations of human T cells (Th0, Th1 and Th2) can be distinguished by their cytokine-secretion pattern. Evidence is increasing from other studies that the outcome of a human disease may depend...

T cells are responsible for the enhanced synovial cellular immune response to triggering antigen in reactive arthritis.

Sieper, J, Braun, J, Wu, P, Kingsley, G

In reactive arthritis (ReA) there is specific proliferation of synovial fluid (SF) mononuclear cells (MNC) to the triggering bacterial antigen; comparatively little or no response is seen in...

Analysing chronic spinal changes in ankylosing spondylitis: a systematic comparison of conventional x rays with magnetic resonance imaging using established and new scoring systems

Braun, J, Baraliakos, X, Golder, W, Hermann, K, Listing, J, Brandt, J, ...

Objectives: To compare conventional radiography and magnetic resonance imaging (MRI) for detection of chronic changes in the spine of patients with ankylosing spondylitis (AS).

Development and preselection of criteria for short term improvement after anti-TNFα treatment in ankylosing spondylitis

Brandt, J, Listing, J, Sieper, J, Rudwaleit, M, Braun, J

Objective: To develop and compare candidate improvement criteria for anti-TNFα treatment in ankylosing spondylitis with optimal discriminating capacity between treatment and placebo.

Outcomes of a multicentre randomised clinical trial of etanercept to treat ankylosing spondylitis

Calin, A, Dijkmans, B, Emery, P, Hakala, M, Kalden, J, Leirisalo-Repo, M, ...

Objective: A double blind, randomised, placebo controlled study to evaluate the safety and efficacy of etanercept to treat adult patients with ankylosing spondylitis (AS).

Impact of anti-tumour necrosis factor α treatment on admissions to hospital and days of sick leave in patients with ankylosing spondylitis

Listing, J, Brandt, J, Rudwaleit, M, Zink, A, Sieper, J, Braun, J

Methods: The data of a 2 year open extension study of a 12 week, double blind, randomised, placebo controlled trial, in which all patients with AS were treated with 5 mg/kg infliximab, were used to...

Six months open label trial of leflunomide in active ankylosing spondylitis

Haibel, H, Rudwaleit, M, Braun, J, Sieper, J

Patients and methods: Twenty patients with AS fulfilling the 1984 modified New York criteria with a Bath AS Disease Activity Index (BASDAI) >3 were given leflunomide for 6 months. Clinical outcome...

Open label trial of anakinra in active ankylosing spondylitis over 24 weeks

Haibel, H, Rudwaleit, M, Listing, J, Sieper, J

Methods: Anakinra (100 mg) was given subcutaneously daily over 24 weeks to 20 NSAID refractory patients with ankylosing spondylitis. Thirteen completed the study. Clinical outcome assessments...

Two year maintenance of efficacy and safety of infliximab in the treatment of ankylosing spondylitis

Braun, J, Brandt, J, Listing, J, Zink, A, Alten, R, Burmester, G, ...

Objective: To obtain results of the second year extension of an original 3 month randomised, placebo controlled trial (and the 1 year extension study) assessing the use of infliximab, a monoclonal...

The evolutionarily conserved ribosomal protein L23 and the cationic urease beta-subunit of Yersinia enterocolitica O:3 belong to the immunodominant antigens in Yersinia-triggered reactive arthritis: implications for autoimmunity.

Mertz, A. K., Daser, A., Skurnik, M., Wiesmüller, K. H., Braun, J., Appel, H., ...

BACKGROUND: Reactive arthritis (ReA) is a T cell mediated inflammatory process. The immune response is primarily directed against a triggering organism, although autoimmunity has been invoked in...

Antigen-dependent B cell differentiation in the synovial tissue of a patient with reactive arthritis.

Schröder, A. E., Sieper, J., Berek, C.

BACKGROUND: Reactive arthritis (ReA) can develop as a consequence of a bacterial infection with organisms such as Chlamydia trachomata, Shigella flexneri, or Yersinia enterocolitica. Although the...

Inflammation in ankylosing spondylitis: a systematic description of the extent and frequency of acute spinal changes using magnetic resonance imaging

Baraliakos, X, Landewe, R, Hermann, K, Listing, J, Golder, W, Brandt, J, ...

Background: Magnetic resonance imaging (MRI) is increasingly used to detect inflammation in the spine of patients with ankylosing spondylitis (AS).

Analysis of the CD8+ T cell response to the G1 domain of aggrecan in ankylosing spondylitis

Zou, J, Appel, H, Rudwaleit, M, Thiel, A, Sieper, J

Background: CD4+ T cell responses to the G1 domain of aggrecan in patients with ankylosing spondylitis (AS) were recently reported. Whether such an immune response can be seen in the CD8+...

Assessment of acute spinal inflammation in patients with ankylosing spondylitis by magnetic resonance imaging: a comparison between contrast enhanced T1 and short tau inversion recovery (STIR) sequences

Baraliakos, X, Hermann, K, Landewe, R, Listing, J, Golder, W, Brandt, J, ...

Objectives: To compare the performance of two different MRI sequences—T1 weighted, fat saturated, spin echo after application of contrast medium, and short τ inversion recovery (STIR)...

Magnetic resonance imaging of the spine and the sacroiliac joints in ankylosing spondylitis and undifferentiated spondyloarthritis during treatment with etanercept

Rudwaleit, M, Baraliakos, X, Listing, J, Brandt, J, Sieper, J, Braun, J

Objective: To assess the changes in inflammatory lesions of the spine and the sacroiliac (SI) joints as detected by magnetic resonance imaging (MRI) in patients with ankylosing spondylitis (AS) and...

Radiographic progression in patients with ankylosing spondylitis after 2 years of treatment with the tumour necrosis factor α antibody infliximab

Baraliakos, X, Listing, J, Rudwaleit, M, Brandt, J, Sieper, J, Braun, J

Background: Anti-tumour necrosis factor (TNF) treatment is clinically efficacious in patients with active ankylosing spondylitis (AS) and leads to improvement of spinal inflammation, as assessed by...

How early should ankylosing spondylitis be treated with tumour necrosis factor blockers?

Sieper, J, Rudwaleit, M

Recognition and treatment of ankylosing spondylitis (AS) in the early stages of the disease has yet to be established. This paper considers the evidence available and the questions that need to be...