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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 26 (1970), S. 804-805 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung Die lipolytische Enzymaktivität saprophytärer und tierpathogener Mykoplasmenstämme wurde immunelektrophoretisch untersucht, wobei als Substrat menschliches Serum diente. Dabei wurde bei einigen Stämmen die Fähigkeit zum Abbau von α1-Lipoprotein und vonβ-Lipoprotein gefunden.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 26 (1970), S. 1244-1245 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Zusammenfassung Es wurde gezeigt, dass die Adsorption von Mycoplasmen an Ehrlich Ascites-Tumorzellen an das Vorhandensein von neuraminidase-empfindlichen Zellrezeptoren gebunden ist.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    Journal of molecular medicine 50 (1972), S. 226-233 
    ISSN: 1432-1440
    Keywords: Mycoplasma ; Cell Cultures ; Mycoplasma ; Zellkulturen
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Für die Forscher, die die Methodologie der Zellkulturen in bezug auf die Deutung ihrer Ergebnisse benutzen, rufen Mycoplasmen, durch ihre häufige Gegenwart in Zellkulturen viele Probleme hervor. In der übersicht werden besprochen die Wirkungen auf den Zellstoffwechsel, auf Chromosomen, Transformationen in maligne Zellen, Anheftung an und Wechselwirkung mit der Zellmembran, intracelluläre Existenz. Beziehungen von Mycoplasmen und Viren, nachgewiesene Mycoplasmen-Arten in Zellkulturen und Methoden zu ihrer Feststellung.
    Notes: Summary The presence of mycoplasmas in tissue cultures has created many problems for investigators employing cell cultures, especially with respect to the interpretation of the results. It was partly because of these problems encountered in mycoplasma-infected tissue cultures that increased attention was paid to this group of organisms and many unique interactions of these organisms with cell cultures, uncultured living cells and viruses were discovered, which have been reviewed in the present paper.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 252 (1974), S. 758-758 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] DIAMOND in his report1 has presented by no means a new discovery; Aronson and Kletter2 have already demonstrated the in vitro killing of extracellular Cryptococcus neoformans by rabbit monocytes even in presence of normal rabbit serum. Monocytes do not necessarily require the presence of specific ...
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    [s.l.] : Nature Publishing Group
    Nature 250 (1974), S. 225-226 
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] When Carter4 first reported the enucleation of mammalian cells by the drug cytochalasin B, a metabolic product of the fungus Helminthosporium dematioideum, he predicted that the separated nuclei and the enucleated cytoplasma might be used in nuclear exchange experiments. Since then the fusion of ...
    Type of Medium: Electronic Resource
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  • 6
    ISSN: 1432-8798
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary Mouse L-cells infected with UV-inactivated HSV could serve as suitable targets for monitoring H-2 restricted cytotoxicity mediated by HSV-immune T cells. Cytotoxic potential of immune T cells for H-2 compatible targets exposed to UV-inactivated HSV was enhanced if the later were pretreated with mouse interferon.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Archives of virology 59 (1979), S. 157-172 
    ISSN: 1432-8798
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary This study has documented that peritoneal macrophages (PM) from adult mice of strains DBA/2J, BALB/c and AKR can support productive replication of herpes simplex virus (HSV) strains Thea and Haase. Simian virus 40 transformed PM of C57 BL/6J origin yielded high titers of Thea and Haase, whereas normal PM from adult mice of the same genetic background were infected abortively. The evidence obtained suggested that multiplication of PM per se is insufficient to allow HSV replication. PM from DBA/2J mice, immune to HSV or Listeria monocytogenes lacked the capacity to support productive replication of HSV. PM from nonimmune, adult DBA/2J or suckling C57BL/6J mice acquired the potential to effectively restrict HSV replication when preincubated for 24 hours with 72 hours old MLC supernatant. These macrophages could also inhibit HSV replication if pretreated with supernatant from cultures of specific antigen stimulated, HSV or Listeria immune spleen lymphocytes (SL). Likewise, supernatant from concanavalin A stimulated SL also possessed the capacity to confer resistance against HSV replication in otherwise permissive PM. Sensitized T cells proved to be essential for the generation of active supernatants. Active supernatants had the potential to confer resistance against HSV replication within mouse but not chick or hamster embryo cells. The other characteristics of the soluble mediator included: instability at pH 2, inactivation by trypsin but not by DNase or RNase and persistence of activity when exposed to 56° C for 20 minutes.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 34 (1978), S. 598-599 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Both promastigotes and amastigotes ofLeishmania enriettii were readily ingested by mouse peritoneal macrophages (MPM). Promastigotes after their entry within MPM were rapidly immobilized and their multiplication was never observed. Microscopic examination revealed that ingested promastigotes were degraded within MPM. Nonmotile amastigotes ofL. enriettii taken up by MPM, on the other hand, multiplied intracellularly and eventually destroyed the infected cells.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 35 (1979), S. 1029-1030 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary Filtrates prepared from heavily grown agar cultures ofM. pulmonis strain Negroni-52 formed plaques on lawns ofA. laidlawii strain JA1 but not on those ofM. pulmonis strains Ash or Negroni-52. The plaque-forming agent proved to be rod-shaped particles morphologically identical with mycoplasmavirus group 1. Evidence supporting the conclusion that the virus originated from Negroni-52 has been obtained. Electron microscopy revelaed that Negroni-52 is also a carrier of long-tailed phage-like particles.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Cellular and molecular life sciences 28 (1972), S. 397-398 
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The activity of bacterial neuraminidases can be influenced by H2O2 secreted by some organisms. Thus, at low H2O2 concentrations (0.002–0.01%), an increase of neuraminidase activities was observed, whereas at concentrations 0.1% the enzyme activities were destroyed.
    Type of Medium: Electronic Resource
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