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Biomedical subjects

E Märker-Hermann

Publications and source records attributed to E Märker-Hermann.

At least 19 recordsLinked to original sources

[Manifestation of diffuse proliferative lupus nephritis in a patient treated with long-term mycophenolate mofetil].

HISTORY AND ADMISSION FINDINGS: A now 34-year old female patient with long-standing systemic lupus erythematosus (SLE) had successfully been treated with mycophenolate mofetil (MMF) because of former pleuropericardial and pulmonal lupus manifestations when she was admitted with edema for the first time. INVESTIGATIONS: Laboratory investigations of urine and blood showed findings compatible with lupus nephritis. Kidney biopsy revealed lupus nephritis type IV. TREATMENT AND COURSE: Despite the initiation of cyclophosphamide bolus and corticosteroid therapy, the kidney function and renal hypertension worsened and the patient developed cerebral manifestations. Finally, synchronization of plasmapheresis with subsequent pulse cyclophosphamide led to remission of SLE. CONCLUSION: Although MMF is a promising innovative agent for induction and maintenance therapy of lupus nephritis that can be used instead of cyclophosphamide, there may be cases like the one reported here, in which MMF cannot prevent lupus flares in first manifestation of severe renal disease.

Adrenal Cortex Hormones↗

[Increasingly appropriate depiction of rheumatology for G-DRG reimbursement 2006].

Starting with the second year of the so called "convergence period", specialized rheumatological treatment is now represented by a specific DRG (197Z) in the German G-DRG system. The definition of this DRG is based on the procedure codes for the complex and multimodal treatment of rheumatological inpatients (OPS 8-983 and 8-986). This will result in a more appropriate reimbursement of rheumatological treatment. The implementation of specialized rheumatological treatment can be regarded as exemplary for the incorporation of medical specializations into DRG systems. The first step is the definition of the characteristics by procedure codes, which can consequently be utilized within the grouping algorithm. After an inadequate representation of a medical specialization within the DRG system has been demonstrated, a new DRG will be established. As no cost data were available, the calculation of a cost weight for the new G-DRG 197Z is not yet possible for 2006. Hence, reimbursement has to be negotiated between the individual hospital and the budget commission of the health insurers. In this context, the use of clinical pathways is considered helpful.

Diagnosis-Related Groups↗

[Recommendations for the management of ankylosing spodylitis after ASAS/EULAR. Evaluation in the German language area].

AIM: Our aim was to adapt and implement the evidence based recommendations for the management of ankylosing spodylitis (AS) of the "Assessments in AS" (ASAS) International Working Group together with the European League Against Rheumatism (EULAR) within the framework of a competence network (CN) in rheumatology in the German language area. METHODS: The ASAS/EULAR project calculated the effective size (ES), rate ratio, number of patients requiring treatment (number needed to treat, NNT) and the incremental cost-effectiveness ratio (ICER). The strength of the recommendations was determined through the evidence level found in the literature, the risk-benefit trade-off and the clinical experience of the experts. The recommendations were recently published in English. All of the centers taking part in the study area Spondyloarthritis (SpA) CN, as well as an additional 35 experts, were sent the English manuscript. All 35 participants were asked to evaluate the ten main management recommendations on a scale from 0 to 10. RESULTS: The recommendations encompass the use of drugs such as non-steroid anti-inflammatories (NSAR), which, along with conventional NSAR include coxibs and the parallel application of gastroprotectives, so called disease-modifying anti-rheumatic drugs, biologicals, simple analgesics, local and systematic glucocorticoids, non-drug therapies (such as patient training, medical training therapy and physiotherapy), in addition to surgical treatment methods. Moreover, three general recommendations were formulated and a therapy scheme created, taking into consideration the various clinical manifestations. The strength of the ASAS/EULAR recommendations was generally high. There was a marked consensus between the German speaking experts and the international proposal: a mean of 9.13 with relatively low variation between the recommendations. SUMMARY: Ten key recommendations for the treatment of AS were developed. These were strengthened by a systematic search of the literature and by expert consensus. The large group of German speaking experts were largely in agreement with the proposal. This can be seen as a starting point for the dissemination and implementation of the recommendations.

Analgesics↗

[Renal manifestations of rheumatic diseases].

Inflammatory rheumatic diseases are frequently complicated by subclinical or overt renal manifestations. This is well known for the connective tissue diseases and vasculitides in which renal disease can be of significant prognostic value and therapeutic implication. However, rheumatoid arthritis and the spondyloarthritides can also be associated with direct renal manifestation or with secondary renal AA-amyloidosis. The clinician should be aware of the different glomerular (i. e. nephritic or nephritic syndrome, rapidly progressive renal disease) and tubulo-interstitial syndromes. In any case of renal dysfunction in a rheumatic patient, the differential diagnosis should include renal disease independent from the rheumatic condition, infection, and drug-induced renal toxicity.

Humans↗

[The multimodal rheumatologic complex treatment (OPS 8-983)--challenges, solutions and perspectives].

As from 2005 the specialized complex rheumatologic treatment can be assigned to the code category 8-983 (Multimodale rheumatologische Komplexbehandlung) of the OPS procedure classification system. Only by means of this specific procedure code, has an appropriate description and consideration in the G-DRG system of the common clinical practice in specialized rheumatologic hospitals/clinics become possible. The complex and multimodal treatment reflects the rheumatologic therapeutic standard for the treatment of inflammatory rheumatic diseases and non-inflammatory pain syndromes. The article focuses on the minimal criteria that have to be met for coding the OPS 8-983. Helpful practical instructions are given concerning how to implement the complex procedure into practice. Even though the newly introduced procedure code OPS 8-983 will not yet develop influence on the grouping process in 2005, other changes in the GDRG system lead to an improved economic valuation of rheumatological services in comparison to 2004.

Diagnosis-Related Groups↗

Inflammatory bowel disease-specific autoantibodies in HLA-B27-associated spondyloarthropathies: increased prevalence of ASCA and pANCA.

AIMS: An association between inflammatory bowel disease (IBD) and spondyloarthropathies (SpA) has repeatedly been reported. The aim of the present study was to investigate whether serologic markers of IBD, e.g. antibodies against Saccharomyces cerevisiae (ASCA), antibodies against exocrine pancreas (PAB) and perinuclear antineutrophil cytoplasmic antibodies (pANCA) are present in HLA-B27-associated SpA. METHODS: 87 patients with HLA-B27-positive SpA and 145 controls were tested for ASCA, PAB and pANCA employing ELISA or indirect immunofluorescence, respectively. Antibody-positive patients were interviewed regarding IBD-related symptoms using a standardized questionnaire. RESULTS/CONCLUSION: When compared to the controls, ASCA IgA but not ASCA IgG levels were significantly increased in patients with SpA, in particular in ankylosing spondylitis (AS) and undifferentiated SpA (uSpA). pANCA were found in increased frequency in patients with SpA whereas PAB were not detected. The existence of autoantibodies was not associated with gastrointestinal symptoms but sustains the presence of a pathophysiological link between bowel inflammation and SpA.

Adolescent↗

[Pathogenesis of ankylosing spondylitis-mechanisms of disease manifestation and chronicity].

Despite intensive research during the last three decades, it is still not clear which precise mechanisms determine the interactions between host factors (HLA-B27 and other genes, cytokines, T lymphocytes) and microbial factors leading to the manifestation and chronicity of ankylosing spondylitis (AS). Rheumatologists and histopathologists have focused their interest on decoding the immune-mediated inflammatory processes and on studying new bone formation and ankylosis. Concerning the genetic basis of AS, there is considerable effort in large genome-wide and candidate gene analyses to discover new genes that are associated with AS. Moreover, such genetic studies could identify genomic regions that determine clinical manifestations and the course of disease.

Autoimmune Diseases↗

Alpha beta but not gamma delta T cell clones in synovial fluids of patients with reactive arthritis show active transcription of tumour necrosis factor alpha and interferon gamma.

OBJECTIVE: To compare the cytokine expression profile of three CD8+, three CD4+, and three gammadelta+ T cell clones all derived from the synovial fluids of three patients with reactive arthritis (ReA). METHODS: Complementary DNA based microarrays containing the specific sequence of 56 cytokine transcripts were used for screening. Selected genes were confirmed by reverse transcriptase-polymerase chain reaction assay. RESULTS: Microarray showed that transcripts encoding for interferon gamma and tumour necrosis factor alpha were expressed by all CD8+ and CD4+ T cell clones. However, gammadelta+ T cells predominantly expressed transforming growth factor beta2 and granulocyte monocyte-colony stimulating factor. CONCLUSION: T lymphocyte clones from the joint of patients with ReA exhibit differential cytokine expression profiles. CD8+ and CD4+ T cells demonstrate a Th1 mediated profile, whereas gammadelta+ T cells show a more heterogeneous and less proinflammatory Th3 driven pattern.

Adult↗

[Therapy with nonsteroidal anti-inflammatory drugs].

Nonsteroidal anti-inflammatory drugs (NSAIDs) are among the most frequently prescribed drugs worldwide. Their analgetic and antiphlogistic effect results from an efficient inhibition of prostaglandin synthesis. The risk of side effects is remarkable. This concerns namely side effects in the gastrointestinal tract and the kidneys. The common NSAIDs inhibit both isoforms of the cyclooxygenase (COX). The analgetic and antiphlogistic effect results from the inhibition of COX-2, whereas the inhibition of COX-1 is responsible for the majority of side effects. If NSAID therapy is necessary, patients at risk should receive an effective prophylaxis, or be treated with COX-2-selective substances. The analgetic effects of COX-2 inhibitors are comparable to common NSAIDs, with a significant reduction of the gastrointestinal risks, except in cases of additional risk factors, e.g., low-dose ASS therapy, etc. In cases of renal impairment both substances should be used with caution, and subtle monitoring is necessary.

Anti-Inflammatory Agents, Non-Steroidal↗

[Chronic recurrent multifocal osteomyelitis in association with chronic inflammatory bowel disease: entheropathic CRMO].

The enterogenic reactive arthritides and entheropathic spondyloarthropathies are well-known entities. The so-called gut iteropathy concept offers an interesting working hypothesis to link the gut inflammation and the lymphocytic infiltration of the synovium. However, the association of rheumatic diseases belonging to the entity of the SAPHO syndrome with inflammatory bowel diseases (IBD) has only been rarely described in the literature. Among 138 cases of our (heterogenic) SAPHO cohort, we detected 5 patients (1 male, 4 females) with a proven association of SAPHO syndrome with IBD (in 4 cases Crohn's disease, in 1 case ulcerative colitis). Two patients belonged to the juvenileadolescent form and 3 to the adult form of SAPHO syndrome. In all cases the underlying osteoarticluar disease was classified as chronic recurrent multifocal osteomyelitis (CRMO), 2 of them presenting as inflammatory anterior chest wall syndrome. There was a strong association with psoriatic pustular dermatitis. Thus, we present 5 cases of "enteropathic CRMO" demonstrating several analogies to the enteropathic spondyloarthropathies. Both disease entities have in common i) metachronic development with osteoarticluar manifestations often preceding the gastrointestinal disease; ii) Crohn's like lesions that may develop from the stomach to the colon; iii) concomittent or intermittent skin pustulosis which mostly resolves; iiii) the gastrointestinal disease that often dominates the whole syndrome namely in the longterm follow-up. We suggest to transfer the hypothesis of the gut-synovium axis of enteropathic spondyloarthropathies to the entity of CRMO. This concept offers an opportunity to link the target organs gut mucosa, bone marrow and the skin via homing of antigen specific lymphocytes. This concept may help to better understand the pathogenesis of the "Skibo" (i. e., skin-bone) disease CRMO.

Acquired Hyperostosis Syndrome↗

HLA-B27-restricted T cells from patients with ankylosing spondylitis recognize peptides from B*2705 that are similar to bacteria-derived peptides.

Ankylosing spondylitis (AS) is an inflammatory systemic disease affecting the spine, sacroiliacal and peripheral joints. Although the aetiology of AS remains unknown, the strong association with the HLA-B27 allele might reflect directly a detrimental effect of the HLA-B27 molecule itself, resulting from its potential capability to present 'arthritogenic' peptides to CD8+ T cells. Because some forms of SpA are triggered by enterobacterial infection, such arthritogenic peptides might originate from autologous and/or bacterial proteins triggering cross-reactive CD8+ T cell clones. Intriguingly, two peptides from the second extracellular domain of HLA-B*2705 share sequence homologies with several enterobacterial antigens, exhibit the HLA-B27-binding-motif, and are presented by HLA-B*2705 itself. The objective of this study was to examine the clonal T cell reactivity against these peptides in patients with AS. To this end, we screened peripheral blood lymphocytes (PBL) of 26 patients with AS and 24 healthy donors for TNF-alpha-producing cells using ELISPOT assays. PBL and synovial fluid-derived lymphocytes (SFL) of peptide-responsive patients were then stimulated and cultured with the relevant peptide and control peptides in vitro. Antigen-specific T cell lines (TCL) were identified by standard chromium release assays. Clonal analysis was performed subsequently applying TCRB-CDR3 spectratyping. Among eight peptides tested, only the HLA-B27 168-176 peptide LRRYLENGK was recognized by PBL from B27+ AS patients but not from B27+ healthy controls (P=0.001). LRRYLENGK-specific T cell clones used preferentially the TCRBV5S1 and the BV14 segment. These results suggest that an HLA-B27-derived peptide with homology to bacterial peptides may play a role in AS.

Adult↗

[Skin nodules and ulcers of the limbs in a patient with rheumatoid arthritis].

CASE HISTORY: While being treated with corticosteroids and methotrexate for rheumatoid arthritis, a 63-year-old man developed livid nodules on his lower arms, hands and feet, as well as fever, necrotizing skin ulcers and rupture of a finger extensor tendon. INVESTIGATIONS: No vasculitis was found in a biopsy of one of the nodules on the lower arm. Fast growing mycobacteria, classified as M. marinum by PCR, were cultured from wound swabs. TREATMENT AND COURSE: The lesions healed on administration of ciprofloxacin, ethambutol and clarithromycin as well as local treatment. CONCLUSION: Cutaneous lesions of an atypical mycobacterial infection are often misdiagnosed. This is especially so in immunocompromised patients and in the differential diagnosis of vasculitis.

Anti-Bacterial Agents↗

Conserved TCR beta chain usage in reactive arthritis; evidence for selection by a putative HLA-B27-associated autoantigen.

Previous work suggested that expanded CD8+ T-cell clones in the synovial fluid (SF) of HLA-B27+ patients with reactive arthritis (ReA) preferentially use the T-cell receptor variable region (TCRBV) 1, similar CDR3 sequences, and joining region (BJ) 2S3. To determine the range of conservation and disease-specificity of CDR3-sequences, we analyzed the TCRBV1-J2S3 repertoire from 33 healthy HLA-B27+ individuals, patients with various types of spondyloarthropathies (SpA), and with rheumatoid arthritis (RA) by CDR3-spectratyping. After collection and database submission of all available TCRB-CDR3 from HLA-B27-restricted or SpA-derived T cells, we systematically screened the entire human sequence database for sequences similar to the B27/SpA-related CDR3. Spectratyping revealed expanded T cell clones using conserved TCRBV1J2S3 in the SF from 5/6 of the patients with acute ReA but not among the controls. In database searches, 50 HLA-B27 or SpA-related CDR3-sequences generated similar clusters of matched sequences, and matched reciprocally. Identical or closely related sequences were identified in 15 different individuals and a canonical ReA-associated TCRB was defined [BV1-CASSVG(V/I/L)(Y/F)STDTQYF-J2S3]. All but one patient-derived conserved sequences originated from acute stage ReA-patients, and were not present among approximately 3800 other human TCRB sequences in the database. Five of the conserved sequences originated from T cell clones that recognized uninfected cells in an HLA-B27-restricted fashion, implying a role of HLA-B27-restricted CD8+ T cells specific for a ubiquitous self- or cross-reactive microbial determinant in the early phase of ReA. Related sequences were independently identified in four different laboratories. The consensus TCRB motif could be a helpful diagnostic marker in HLA-B27-associated 'undifferentiated arthritis'.

Adult↗