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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Calcified tissue international 50 (1992), S. 468-472 
    ISSN: 1432-0827
    Keywords: Osteonectin ; Mineralization ; Tooth development
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Notes: Summary We investigated immunohistologically 160 teeth and dental germs in various stages of tooth development taken from human individuals (13th week of pregnancy to the 24th year of life) to study the osteonectin expression in dental hard tissue. In the course of dentinogenesis, the predentin, the odontoblasts, and their cell processes show a positive osteonectin staining reaction. During cementogenesis, osteonectin is synthesized by cement-producing fibroblasts, cementoblasts, and cementocytes. The expression of osteonectin during dentinogenesis and cementogenesis is closely related to the development of the respective calcified tissue. All cells of the inner and outer enamel epithelium, the cells of the stratum reticulare and stratum intermedium, the ameloblasts, and the enamel substance are osteonectin negative, just as dentin and cement are. The results of this study indicate one important physiological role of osteonectin as a protein associated with the formation of collagen containing mineralizing tissues like human bone, as well as human dentin and cement.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Zeitschrift für Rheumatologie 57 (1998), S. 285-291 
    ISSN: 0340-1855
    Keywords: Schlüsselwörter Lokalisierte Fibrose ; Retroperitonealfibrose ; Morbus Ormond ; Oligoarthritis ; Rheumaknoten ; Key words Localized fibrotic disorders ; retroperitoneal fibrosis ; Ormond‘s disease ; arthritis ; rheumatoid nodules
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Retroperitoneal fibrosis is a disorder in which the retroperitoneal fat is the site of a subacute and chronic inflammatory reaction and is subsequently replaced by dense fibrotic tissue. Rheumatoid nodules are chronic granulomata occurring at sites of pressure and movement, both near the body surface and internally.  A 55-year-old sales-manager was admitted to radiation synovectomy after a 5 year history of excessive right and left knee effusions. There were no other clinical or laboratory abnormalities. The patient did not respond to either radioisotope synoviorthesis using radioactive Yttrium (90 Y), or to open synovectomy and prostetic surgery of the right knee.  One year later, surgery of left ureter was necessary. Histological findings revealed the diagnosis of Ormond‘s disease. Comparative histological studies of synovial membrane of knee and retroperitoneal tissues showed local necrosis, fibrin deposition, lining cell proliferation, and infiltration by lymphocytes. Diagnosis of arthritis complicated by retroperitoneal rheumatoid nodules and retroperitoneal fibrosis was made. Serum rheumatoid factor has been negative. For the last 3 years, the patient has been on successful therapy with azathioprine. Rheumatoid nodules of the retroperitoneum have vanished completely and frequency of knee effusions decreased.
    Notes: Zusammenfassung Wir beschreiben den Fall eines 55-jährigen Patienten mit seit 5 Jahren bestehenden Kniegelenkergüssen beidseits, der uns zur Radiosynoviorthese zugewiesen wurde. Klinisch und laborchemisch ergaben sich zunächst keine Anhaltspunkte für eine entzündlich rheumatische Erkrankung. Weder Radiosynoviorthese noch offene Synovektomie mit partiellem Kniegelenkersatz des rechten Knies führten zu einem Rückgang der Ergußbildung. Ein Jahr später wurde anläßlich einer Harnleiteroperation die Diagnose eines Morbus Ormond gestellt. Die histologischen Studien von Kniegelenkssynovialmembran und Retroperitonealgewebe zeigten vergleichbare Strukturen. Die Diagnose einer seronegativen Oligoarthritis mit retroperitonealer Rheumaknotenbildung und Ausbildung eines sekundären Morbus Ormond war damit wahrscheinlich. Unter einer immunsuppressiven Therapie mit Azathioprin haben sich die retroperitonealen Rheumaknoten vollständig zurückgebildet, die erforderlichen Kniegelenkspunktionen deutlich abgenommen.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Histopathology 18 (1991), S. 0 
    ISSN: 1365-2559
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Bellini duct carcinomas have recently been identified as a new entity in the spectrum of renal cell carcinomas and 10 cases have now been reported. The present paper adds detailed clinical and morphological data on six new cases. In addition, immunohistological and electronmicroscopical results support the origin of these tumours from the renal collecting ducts, especially the papillary ducts (Bellini ducts). A set of immunohistological reactions, including reactions to cytokeratins 13 and 19, vimentin and UEA-1 was found to facilitate the differential diagnosis of Bellini duct carcinomas from other renal cell carcinomas and infiltrating urothelial carcinomas of renal pelvis.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Histopathology 8 (1984), S. 0 
    ISSN: 1365-2559
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Immunohistological investigations were carried out on human colonic tissue from, 1 healthy mucosa, 2 slightly inflamed mucosa, 3 mucosa with ulcerative colitis, 4 mucosa with Crohn's colitis, using antibodies against immunoglobulins and complement components. All our antibodies, including F(ab’)2 fragments, demonstrated a progressive increase of labelled cells from healthy mucosa through slightly inflamed mucosa to mucosa with ulcerative colitis, in contrast to a complete absence of labelled cells in cases of Crohn's disease. The results are discussed with regard to their pathogenesis and their clinical significance for the differentiation of ulcerative colitis and Crohn's colitis.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Annals of the New York Academy of Sciences 523 (1988), S. 0 
    ISSN: 1749-6632
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1433-8726
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Between 1969 und 1989 conservative surgery for kidney tumors was performed in 123 patients. In 49 patients there was an imperative indication for a parenchyma-sparing operation because nephrectomy would have made dialysis obligatory. Thirty-five of these 49 patients show no signs of tumor progression after a mean follow-up of 4.5 years. Known metastases were present in 3 of 6 patients who died as a result of their tumors. In two patients there was a recurrence after 1 and 5 years, respectively, requiring a second organ-preserving operation. In one further patient we suspect that multiple small tumor lesions may be present 2 years after the first operation. In 74 patients with a healthy contralateral kidney the tumor was enucleated by choice (elective indication). Sixty-eight of these 74 patients show no signs of tumor progression after a mean follow-up period of 3.3 years. One patient died from tumor metastases. Two patients had tumor recurrence, requiring nephrectomy and enucleation, respectively. Fifty-seven enucleated tumors were available for image analysis DNA cytometry. Only the two patients with a hypertriploid tumor died from their cancer.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    World journal of urology 13 (1995), S. 153-158 
    ISSN: 1433-8726
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The current classification of renal-cell adenomas (RCAs) and carcinomas (RCCs) is based on eight basic cell and tumor types (entities) with characteristic morphologic features: (1) RCCs of clear-cell type, (2) RCAs/RCCs of chromophilic-cell type, (3) RCAs/RCCs of chromophobic-cell type, (4) RCCs of duct Bellini type, (5) RCCs of transitional-cell type, (6) RCCs of neuroendocrine type, (7) RCAs of oncocytic type, and (8) RCAs of metanephroid type. Tumors with a proposed histogenesis from the proximal tubule (clear-cell and chromophilic tumors) amount to 85% of renal cancers, whereas tumors with a proposed histogenesis from the connecting tubule/collecting duct (chromophobic-, oncocytic-, and duct Bellini-type tumors) amount to only 11%. The remaining tumor types represent rare entities (less than 1% each). Tumor cytogenetics data confirm the proposed eight morphologic subtypes and give further indications for type-specific tumor development and progression.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Virchows Archiv 412 (1987), S. 37-45 
    ISSN: 1432-2307
    Keywords: Amyloidosis ; Carpal tunnel syndrome ; Potassium permanganate ; Immunohistochemistry ; Immunoperoxidase
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary 140 biopsies from 108 patients afflicted with the carpal tunnel syndrome were studied, 27 of whom showed deposition of amyloid, in 6 of them to such an extent that the amyloid was considered significant in the pathogenesis of the carpal tunnel syndrome. Morphologically, vessels and ligaments were affected and especially the peritendinous structures. As it was always part of generalized amyloidosis, the amyloid in the carpal tunnel consisted immunohistologically of amyloid A in three cases (including one case with simultaneous amyloid deposition of the AA- and the AB-type), of amyloid Aϰ in one case, of amyloid of prealbumin origin in seventeen cases and of AB-amyloid in eight cases. We also described for the first time the manifestation of generalized senile amyloidosis (ASs) in the carpal tunnel. Deposition of amyloid ofβ-2-microglobulin type (AB) in the carpal tunnel was particularly frequent and massive.
    Type of Medium: Electronic Resource
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  • 9
    ISSN: 1432-2307
    Keywords: Human renal cell carcinoma ; Cell line ; Proto-oncogene ; Tumour suppressor gene ; p53
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract Four new permanent cell lines (RCC-A, -B,-C, and -D) derived from different human renal cell carcinomas of the clear cell type were established in tissue culture. The cell lines displayed characteristic differences in cell size and shape, which allowed individual identification by phase contrast microscopy. Ultrastructurally, the cell lines exhibited varying amounts of cytoplasmatic glycogen and lipid. Immunohistochemistry revealed co-expression of vimentin and cytokeratin in all cell lines. The mean population doubling time ranged from 27 h (RCC-A) to 104 h (RCC-D). RCC-B and -C cells produced slowly growing tumours after heterotransplantation into nude mice, whereas RCC-A and RCC-D cells were non-tumorigenic. The modal chromosome number was either near-diploid (RCC-A, -B, and -C) or near triploid (RCC-D). Clonal abnormalities affecting the short arm of chromosome 3 were seen in all cell lines. Northern blot analysis revealed no expression of the proto-on-cogenes c-fos, c-ros, and c-mos, whereas c-Ki-ras expression was observed in all cell lines. Expression of c-myc was observed in RCC-A, RCC-B, and RCC-D cells, whereas c-raf expression could be detected in RCC-B and RCC-D. Tumour suppressor gene p53 mRNA was observed in the cell line RCC-D.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Der Onkologe 4 (1998), S. 214-220 
    ISSN: 1433-0415
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Nierenzellkarzinome zeichnen sich durch einen hohen Grad an klinischer und tumorbiologischer Heterogenität aus. Bei deutlicher Zunahme der Erkrankungszahlen in Europa und den USA und bei nahezu unveränderter Therapie- refraktärität des metastasierten Tumors, bleibt das Nierenzellkarzinom eine Herausforderung für den Kliniker und den Tumorforscher [1]. Die anfänglich hohen Erwartungen, die in die immun-modulatorische Therapie gesetzt worden waren, haben sich bei bekannter Unempfindlichkeit gegenüber Strahlen- und Chemotherapie nicht erfüllt [2]. Neue therapeutische Konzepte erscheinen somit notwendig. In diesem Review wird die neue Klassifikation der epithelialen Nierentumoren dargestellt und auf die wesentlichen genetischen und molekularen Aberrationen, sowie deren mögliche diagnostische Bedeutung eingegangen.
    Type of Medium: Electronic Resource
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