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  • 1
    Electronic Resource
    Electronic Resource
    Amsterdam : Elsevier
    Biochemical and Biophysical Research Communications 107 (1982), S. 779-784 
    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: 1365-2222
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: The pathogenesis of summer-type hypersensitivity pneumonitis, which often occurs in Japan, was examined by analysing the cell profile, especially the lymphocyte sub-populations, of bronchoalveolar lavage fluid from these patients: twenty-two normal volunteers and fourteen patients with localized lung cancer as controls. Lymphocyte sub-populations were determined by the micro-testplate method. In the bronchial fluid of the summer hypersensitivity group, the total cell number was much higher (five to ten times) than in the control groups, and the percentage of lymphocytes reached 84-2 + 5.1 (mean + s.e. mean); the percentage of T lymphocytes was significantly increased (95.6 + 1.0), but that of B lymphocytes (3.2 + 0.6) was similar to that of the control groups, though the absolute numbers of B and T lymphocytes were higher than in the control groups. In the peripheral blood of the summer hypersensitivity group, the percentage of B lymphocytes was significantly higher than that found in the normal volunteers, but that of T lymphocytes was not increased. Cellular changes in bronchial fluid were more evident than changes seen by X-ray examination and are considered to be a good parameter of the severity of hypersensitivity pneumonitis. It is considered that cell-mediated immunity as well as the Arthus reaction may be intimately related to the pathogenesis of summer-type hypersensitivity pneumonitis.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Scandinavian journal of immunology 19 (1984), S. 0 
    ISSN: 1365-3083
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Medicine
    Notes: Natural killer (NK) cell aciiviiy in experimental murine amyloidosis was studied. In CBA/J mice, which show a high incidence of amyloidosis. NK activity was significantly decreased after 1 week of casein treatment. In C3H mice, which show a low incidence of amyloidosis, NK activity was not changed by casein treatment. Pretreatment with lipopolysaccharide in vivo enhanced the NK activities in CBA/J and C3H mice. These increases were not observed after casein treatment. The lowered NK activity of cells from CBA/J mice after casein treatment was restored to the normal range by indomethacine in vitro. Depletion of adherent cells from the spleen cells treated with casein had no effect on NK activity. Single-cell assay showed that casein treatment impaired the killing but not the binding of NK cells to target cells. After casein treatment, the splenic serum amyloid A (SAA) level gradually increased in CBA/J mice but remained low in C3H mice. NK activity was suppressed by the addition of serum obtained from CBA/J mice treated with casein but not by normal control serum. And partially purified AA protein obtained from the spleen of CBA/J mice treated with casein also suppressed NK activity in vitro.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    Mycopathologia 14 (1961), S. 55-56 
    ISSN: 1573-0832
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Griseofulvin, Amphotericin B, Trichomycin and Potassium Iodide did not influence the course of experimental sporotrichosis with an infective dose of 2.3×105 cells injected intravenously.
    Type of Medium: Electronic Resource
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  • 5
    ISSN: 1741-0444
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Medicine
    Description / Table of Contents: Sommaire Le diagnostic cytologique clinique est un élément important dans la détection précoce du cancer. Toutefois la pénurie de cytologistes et le temps pris par ces examens empêchent leur généralisation. Pour remédier à cette situation, on a réalisé un prototype d'appareil qui permet la détection automatique de la tumeur. Un spot lumineux est dirigé sur le spécimen; on effectue un balayage sur environ 10000 noyaux de cellules. La densité optique modulée par le noyau est introduite dans le calculateur qui est susceptible de contrôler l'unicité de chacun des noyaux, de les classer parmi cinq catégories, et de totaliser le nombre de noyaux par catégorie. Toutes les opérations y compris les manipulations d'échantillons, sont complètement automatisées. Des tests préliminaires révèlent des résultats satisfaisants sur les préparations faites à partir des tumeurs à cellules ascitiques d'Ehrlich. Du fait que le calculateur dispose de bien d'autres possibilités, le diagnostic peut finalement être établi à partir de critères composites.
    Abstract: Zusammenfassung Die klinische Zytologie ist eine wichtige diagnostische Disziplin zur Krebsfrüherkennung. Eine weitgehende Anwendung wird jedoch durch die geringe Zahl von Zytologen und durch die zeitraubende Untersuchungstechnik verhindert. Um diese Situation zu verbessern, wurde ein Prototypapparat konstruiert, der die Malignität automatisch bestimmen soll. Auf die Probe wird ein Lichtfleck geworfen. 10000 Zellkerne werden überstrichen. Die vom Kern modulierte optische Dichte wird in einen Rechner gefüttert, welcher einen einzelnen Kern als solchen erkennt und in fünf Flächenklassen einteilt; die Zahl der Kerne in jeder Klasse wird summiert. Alle Vorgänge, auch das mechanische Verfahren, verlaufen vollständig automatisch. Vorläufige Untersuchungen ergaben zufriedenstellende Ergebnisse an einer Präparation von Ehrlich-Aszites-Tumorzellen. Da der installierte Rechner verschiedene andere Möglichkeiten zum Erhalten verfügbarer Kriterien besitzt, sollte das Entscheidungsverfahren schließlich mit verschiedenen Kriterien durchgeführt werden.
    Notes: Abstract Clinical cytology is an important diagnostic procedure in the early detection of cancer. However, both the scarcity of cytologists and the time-consuming nature of the examination are hindering its application to mass survey. To alleviate this situation, a prototype apparatus was constructed so that the determination of malignancy could be made automatically. A spot of light is thrown upon a specimen. Scanning is performed over 10,000 cell nuclei. Optical density modulated by the nucleus is fed into a computer, which recognizes an individual nucleus as a single nucleus, classifies it into five area-levels, and totals the number of nuclei in each class. All the steps including the mechanical operation are completely automated. Preliminary tests revealed satisfactory results on the preparation made from Ehrlich's ascitic cell tumour. Because the installed computer has other several potentialities for yielding available criteria, the decision-making procedure should finally be worked out by a composite criteria.
    Type of Medium: Electronic Resource
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