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  • 11
    Electronic Resource
    Electronic Resource
    Springer
    Annals of hematology 20 (1970), S. 129-132 
    ISSN: 1432-0584
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 12
    Electronic Resource
    Electronic Resource
    Springer
    Annals of hematology 13 (1966), S. 318-327 
    ISSN: 1432-0584
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 13
    Electronic Resource
    Electronic Resource
    Springer
    Annals of hematology 24 (1972), S. 122-123 
    ISSN: 1432-0584
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 14
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 15
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Various cell types within a lymph node showing caseous tuberculosis have been identified and photographically documented on imprints stained after Pappenheim. Thereafter the slides were restained successively with the Feulgen-, Fastgreen- and Naphthol yellow-method. Thus we were able to identify the different cell types and to determine their DNA-, nuclear histone- and nuclear protein-content by cytophotometry. Lymphocytes, epitheloid cells, tissue mast cells and plasmocytes essentially are diploid. Plasmoblasts and proplasmocytes as well as some other large basophilic cells (mainly basophilic stem cells) show active DNA synthesis, as indicated by diploid, hyperdiploid and tetraploid values. Proplasmoblasts are tetraploid. Taking a Feulgen-Fastgreen-ratio of 1 as standard only lymphocytes and plasmocytes are identical in DNA- and nuclear histone-content. Cells with higher metabolic activity as epitheloid cells, plasma cell precursors and large basophilic blasts show Feulgen-Fastgreen-ratios higher than 1. In contrast to their lower histone-content the nuclear protein-content of metabolic active cell types is essentially higher than that of lymphocytes and plasmocytes. The findings were discussed with regard to function and cytogenetics of lymph node cell types.
    Notes: Zusammenfassung Bei einem Fall von käsiger Lymphknotentuberkulose wurde cytophotometrisch der DNS-, Histon- und Gesamtproteingehalt der Kerne verschiedener Lymphknotenzellen untersucht, und zwar nacheinander an den jeweils gleichen Zellen. Nach der DNS-Bestimmung erwiesen sich Lymphocyten, Epitheloidzellen, Gewebsmastzellen und Plasmazellen im wesentlichen als diploid, Proplasmoblasten als tetraploid, während bei Proplasmazellen und Plasmoblasten sowie bei einer Gruppe weiterer Blasten alle Übergänge von diploiden zu tetraploiden Formen vorkamen. Der Histongehalt entsprach bei Anwendung des Feulgen-Fastgreen-Quotienten von 1 nur bei Lymphocyten und Plasmazellen dem DNS-Gehalt. Er war höher bei den stoffwechselmäßig aktiveren Zellen wie Epitheloidzellen, Proplasmazellen, Plasmoblasten, Proplasmoblasten und der Gruppe der übrigen Blasten. Der Gesamtproteingehalt der Kerne dieser aktiveren Zelltypen war wesentlich höher als bei Lymphocyten und Plasmazellen. Der auffallend niedrige „Histongehalt“ der Epitheloidzellen stand in bemerkenswertem Kontrast zu der hohen Gesamtproteinmenge dieser Zellkerne. Die Bedeutung dieser Ergebnisse für die Beurteilung der funktionellen Leistung der Zellkerne und der cytogenetischen Zusammenhänge wurde diskutiert.
    Type of Medium: Electronic Resource
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  • 16
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 49 (1971), S. 661-663 
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Bei der elektronenmikroskopischen Untersuchung der peripheren Blutzellen einer Patientin mit Lupus erythematosus visceralis (L.e.v.) fanden wir in Lymphocyten und lymphatischen Reizformen cytoplasmatische Einschlüsse, und zwar in jeder 10.–15. Zelle. Diese stellen höchstwahrscheinlich Nucleoproteidstrukturen von Myxo- oder Paramyxoviren dar. Sie sind identisch mit den in Glomerulumendothelien bei lupoider Nephritis und in Lymphknotenzellen bei L.e.v. gefundenen Einschlüssen.
    Notes: Summary The electron microscopic study of peripheral blood cells of a patient with systemic lupus erythematosus revealed cytoplasmatic inclusions in almost 10% of the circulating lymphocytes and activated lymphocytes. Most probably they represent the nucleoprotein component of myxo- or paramyxoviruses. These cytoplasmatic inclusions were identical with virus-like structures that had been found in endothelial cells of glomerulum capillaries and in lymph node cells in systemic lupus erythematosus.
    Type of Medium: Electronic Resource
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  • 17
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 61 (1983), S. 785-793 
    ISSN: 1432-1440
    Keywords: Generalized mastocytosis ; Systemic mastocytosis ; Malignant mastocytosis ; Tissue mast cells
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Proliferation of tissue mast cells in more than one organ is a rare disease, called generalized mastocytosis. Findings obtained in 35 cases were compared with 125 case reports in order to elucidate the course of the disease and its clinical picture. The results indicated that generalized mastocytosis has to be divided into two variants, designated systemic mastocytosis and malignant mastocytosis. Systemic mastocytosis is characterized by urticaria pigmentosa-like skin eruptions, with simultaneous infiltration of at least one visceral organ (usually bone marrow). Other frequently involved organs are spleen, liver, and lymph nodes. The age curve is biphasic, with one peak in early childhood and another in the 6th decade. The prognosis of systemic mastocytosis is generally favorable (actuarial survival 0.88 one year after diagnosis). In contrast to systemic mastocytosis, malignant mastocytosis does not show urticaria pigmentosa-like skin lesions. In this variant of generalized mastocytosis, frequently involved organs are bone marrow, spleen, liver, and lymph nodes. Common symptoms are anemia and eosinophilia. The age curve shows a peak in later life (6th and 7th decades). Malignant mastocytosis is never seen in children. The clinical course is usually rapid, and prognosis correspondingly poor (actuarial survival 0.23 one year after diagnosis).
    Type of Medium: Electronic Resource
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  • 18
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 47 (1969), S. 533-535 
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Quantitative determinations were made of the three major immunglobulins according to the immunodiffusion method byMancini et al. in 13 patients following splenectomy. A significant decrease of IgM concentration was noticed whereas concentrations of IgG and IgA proved to be unchanged. It seems suggestive that the decrease in IgM concentration is due to the reduction of IgM-producing cells secondary to splenectomy. The method of immunological quantitation of serum proteins is described in detail.
    Notes: Zusammenfassung Die drei großen Immunglobulinfraktionen von 13 Splenektomierten wurden quantitativ mit der Immunodiffusion vonMancini u. Mitarb. bestimmt. Dabei fand sich eine signifikante Erniedrigung der γ-Makroglobuline (IgM) bei unveränderter Konzentration von IgA und IgG im Serum. Als Ursache der Verminderung von IgM wird die Reduzierung der IgM-bildenden Zellen durch Splenektomie angesehen. Die Methode der quantitativen Serumproteinbestimmung und ihre Genauigkeit werden dargestellt.
    Type of Medium: Electronic Resource
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  • 19
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 51 (1973), S. 389-396 
    ISSN: 1432-1440
    Keywords: B-cell lymphoma ; secretory lymphocytes ; defect of secretory mechanism ; cytoplasmic inclusions ; Russell bodies ; IgM ; macroglobulins ; 8 S-IgM-subunits ; polyacrylamid electrophoresis ; radio-immunoprecipitation technique ; single radial immuno-diffusion ; Chronische lymphatische Leukämie ; B-Zellenlymphom ; lymphatische Zellen vom sekretorischen Typ ; Sekretionshemmung ; intracelluläre Einschlüsse ; Russellsche Körperchen ; IgM ; Makroglobuline ; 8 S-IgM-Untereinheiten ; Polyacrylamidelektrophorese ; Radioimmunpräzipitationstechnik ; einfache radiale Immunodiffusion
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Bei einem Fall von chronischer lymphatischer Leukämie wurden histologische, cytochemische und elektronenmikroskopische Untersuchungen des Lymphknotens sowie Immunglobulinbestimmungen des Lymphknotenhomogenates und des Blutes durchgeführt. Die Immunglobulinbestimmungen deckten eine hochgradige IgM-Vermehrung im Lymphknoten bei IgM-Verminderung im Blut auf. Ein morphologisches Äquivalent dieser IgM-Vermehrung stellte die Ablagerung PAS-positiver Cytoplasmaeinschlüsse in den neoplastischen Lymphknotenzellen dar. Diese Einschlüsse waren in Ergastoplasmasäcken dieser Zellen lokalisiert. Im übrigen beherrschten ergastoplasmahaltige „sekretorische“ lymphatische Zellen ohne cytoplasmatische Einschlüsse das elektronenmikroskopische Bild. Es handelte sich also um ein IgM-bildendes B-Zellenlymphom vom sekretorischen Typ. Die unterbliebene Abgabe der Makroglobuline in das Blut ist als Sekretverhaltung zu deuten. Da das IgM als 8 S-IgM im Gewebe vorlag, nehmen wir an, daß hier eine Polymerisationsstörung der IgM-Untereinheiten zu dem 19 S-Pentamer bestand, als deren Folge die unterbliebene Sekretion von IgM ins Blut anzusehen ist.
    Notes: Summary A lymph node of a patient suffering from chronic lymphocytic leukemia was investigated using histological, cytochemical and electron microscopic techniques. The remaining lymph node tissue and the blood were also examined for their immunoglobulin content. The immunoglobulin analysis revealed an excessive increase of IgM in the lymph node, while there was a reduced serum IgM level. A morphological equivalent of the increased IgM was constituted by the deposit of PAS-positive cytoplasm inclusions, which were embedded in distended cisternae of the ergastoplasm of the neoplastic lymph node cells. “Secretory” lymphatic cells containing ergastoplasm without inclusion bodies otherwise dominated the electron microscopic picture. The existence of a B-cell lymphoma producing IgM of the secretory type is thus demonstrated. The lack of emission of IgM into the blood has to be interpreted as the result of a defect in the secretory mechanism. As the IgM was found in the form of 8 S-IgM in the tissue, it can be assumed that a disturbance of the polymerisation of the IgM-subunits into the 19 S-pentamer existed, the result of which was the absence of secretion of IgM into the blood.
    Type of Medium: Electronic Resource
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  • 20
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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