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  • 1
    ISSN: 0006-291X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 0006-291X
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Biology , Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 13 (1934), S. 1684-1686 
    ISSN: 1432-1440
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Archives of dermatological research 234 (1969), S. 293-314 
    ISSN: 1432-069X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Bei einem extramammären Morbus Paget wurden die epidermalen Veränderungen elektronenmikroskopisch untersucht. Es läßt sich folgendes finden: 1. In der unteren Epidermis lassen sich strukturell deutlich von der Norm abweichende Zellen erkennen. Diese enthalten verminderte, stoppelförmig geordnete oder nur rudimentär aufgelockerte Tonofilamente meistens in einem ödematösen Cytoplasma. Endoplasmatisches Reticulum und Golgi-Apparate sind weitgehend, angeschwollene Mitochondrien leicht vermehrt. Es finden sich wenige fast normale, gelegentlich rudimentär strukturierte Desmosomen. 2. Neben solchen Zellen lassen sich prinzipiell ähnliche jedoch mit geringeren Veränderungen der Tonofilamente erkennen. 3. Zwischen diesen Zellen finden sich Zellteilungsfiguren mit in gleicher Weise veränderten Tonofilamenten und strukturell normalen Desmosomen. 4. Die darüberliegenden Epidermiszellen in der oberen Malpighischicht weisen mehr oder weniger gleichartige Strukturen der Tonofilamente auf, jedoch vermehrt sich zumeist die Anzahl der Tonofilamente deutlich. 5. Die Differenzierungsprozesse in der Granular- und Hornschicht scheinen vom Normalen modifiziert zu verlaufen. Insbesondere zeigen sich deutliche Einkerbungen der Zellkerne und stärkere lysosomale Reaktion. 6. Nach diesen Befunden scheinen die veränderten Zellen in der unteren Epidermis, die sich nach oben differenzieren können, den lichtmikroskopisch darstellbaren, artifiziell ballonierenden “Pagetzellen” zu entsprechen.
    Notes: Summary In one case of extramammary Paget's disease electronmicroscopic examination of the epidermis disclosed the following: 1. Cells with distinct structural deviation from the norm may be seen in the lower epidermis. These contain tonofilaments which are diminished, arranged like stubble or loosened only in a rudimentary way, generelly enclosed in an edematose cytoplasma. Endoplasmatic reticulum and Golgi-apparatus are extensive, swollen mitochondria slighthly increased. There are few near normal, at times rudimentarily structured desmosomes. 2. Alongside such cells there are others, similar in principle, but with lesser deviations of the tonofilaments. 3. Between these cells there are cell mitosis which similarly changed tonofilaments and structurally normal desmosomes. 4. The epidermal cells lying above these, in the upper Malpighilayer, show more or less the same tonofilament structure, but the number of tonofilaments is generally substantially increased. 5. The Processes of differentiation in the granular and horn layers seem to differ from the norm. Especially there are distinct indentations of the cell nucleus and stronger lysosomal reaction. 6. On the basis of these findings the altered cells in the lower epidermis, which may differentiate upwards, seem to correspond to artificially ballooning “Paget cells”.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Annals of hematology 42 (1981), S. 259-261 
    ISSN: 1432-0584
    Keywords: Terminal transferase ; Unlabeled antibody ; Enzyme method
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary A technique has been worked out for an easy detection of terminal transferase in individual cells by means of the unlabeled antibody enzyme (PAP) method. Terminal transferase is an important enzyme marker for the classification of acute lymphoblastic leukemias that show a variable extent of differentiation into the T-cell series. The incubation procedure giving the best results is described.
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1432-0584
    Keywords: Differentiation/Maturation ; Acute lymphoblastic leukemia ; Diffusionchamber culture
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Blast cells derived from blood and marrow samples of a patient with acute lymphoblastic leukemia (ALL), as well as from the Reh line originally established from an ALL patient, were cultured in diffusion chambers implanted i.p. into preirradiated CBA mice. At different intervals over a period of up to 20 days, surface immunoglobulins, ALL antigen, and T-cell antigen were investigated by using direct immunofluorescence. Rosette formation was tested with sheep and mouse erythrocytes. On day 0, the cells expressed only ALL antigen at the surface, and no rosette formation was observed. During culture, the patient's lymphoblasts, which originally had cytoplasmic IgM in addition to ALL antigen, expressed surface immunoglobulins as well as mouse erythrocyte receptors. The Reh line cells were ambivalent in two experiments developing T-cell antigens and sheep erythrocyte receptors as well as mouse erythrocyte receptors. Our data suggest that the differentiation arrest in leukemic lymphoblasts can be overcome, thus entailing a surface pattern similar to mature T- or B-lymphocytes.
    Type of Medium: Electronic Resource
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  • 7
    ISSN: 1432-0584
    Keywords: AML blast cells ; Eosinophilic differentiation ; Diffusion chambers
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Auer-rod positive acute myelocytic leukemia (AML) blasts from a 33-year-old patient were cultured in diffusion chambers (DC) in order to test their differentiation potential. The cells were labeled with anti-human granulocyte antiserum known to be negative for eosinophils, and evaluated using the unlabeled peroxidase-antiperoxidase (PAP) method. Parallel to a decline in the number of leukemic blasts there was an increase of up to 86% in the number of granulocytic cells belonging to the eosinophilic series. Auer-rod bodies were found in the eosinophilic cells even after 20 days in culture. Staining with anti-granulocyte antiserum failed to demonstrate positive cells at any time during DC culture. Based on the negative reaction with the anti-granulocytic antibodies already at an early stage of development evidence is provided for the existence of a progenitor cell exclusively committed to the eosinophilic pathway.
    Type of Medium: Electronic Resource
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  • 8
    ISSN: 1432-0584
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Annals of hematology 74 (1997), S. 7-10 
    ISSN: 1432-0584
    Keywords: Key words Waldenström's disease ; Low-grade ; NHL ; 2-CdA ; Treatment
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract  Purpose: To assess the activity and side effects of cladribine (2-CdA) treatment in patients with advanced Waldenström's disease. Patients and methods: Ten symptomatic patients without prior therapy were included in a prospective multicenter trial. 2-CdA was administered daily at 0.12 mg/kg body weight in a 2-h i.v. infusion over 5 consecutive days; this was repeated every 28 days for four cycles. Patients achieving a remission received interferon alfa-2c (IF) 15 μg s.c. three times a week for 1 year. Results: All 10 patients responded to 2-CdA (100%; 95% confidence interval, 68–100%), with one complete (CR) and eight partial responders (PR); one patient had only one 2-CdA cycle and showed a minor improvement (MR). Patients tolerated the treatment well. Despite considerable immunosuppression, an infection occurred in only two patients. After a median observation period of 57 weeks, three patients had shown progression, including one who died of lymphoma. Conclusion: 2-CdA induction and IF maintenance is a well-tolerated therapy for symptomatic untreated patients with advanced Waldenström's disease and offers excellent palliation.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Monatshefte für Mathematik 13 (1902), S. A36 
    ISSN: 1436-5081
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Type of Medium: Electronic Resource
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