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  • 1
    Electronic Resource
    Electronic Resource
    The survival of neonatal rat retinal ganglion cells in vitro is enhanced in the presence of appropriate parts of the brain (1982)
    Springer
    Experimental brain research 48 (1982), S. 377-386 
    Details
    ISSN: 1432-1106
    Keywords: Retinal ganglion cells ; Cell death ; Trophic factors ; Tissue culture ; Development
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Summary The enzyme horseradish peroxidase (HRP) was injected into the visual centres of the brains of neonatal rats. Following dissociation of retinae into tissue culture, the ganglion cells could be identified by appropriate histochemical staining for HRP reaction product. Cultures were prepared of dissociated retinae from rats aged 2–6 days postnatal. After 3 h the cultures were fixed, and HRP-labelled cells visualized and counted. Estimates were made of the number of ganglion cells per retina at each age. Results indicated a loss of ganglion cells during the first few postnatal days. This loss paralleled that observed in vivo. It was further found the retinal ganglion cells died rapidly in vitro when cultured in a minimal medium. Only 50% of ganglion cells originally plated remained viable after 24 h. However, the survival rate could be increased to 100% by coculturing the cells with diencephalon and mesencephalon; these contain the retinorecipient nuclei. Coculturing with cerebellum did not result in such an enhanced survival rate. Ganglion cells could be maintained over longer periods of time by reinoculating the cultures with additional tissue containing diencephalon and mesencephalon. These results support the hypothesis that developing neurons require trophic factors from their target tissues in order to survive.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00238614
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Lymphatic metastasis of tumour; persistent transport of cells (1980)
    Springer
    Cellular and molecular life sciences 36 (1980), S. 1458-1458 
    Details
    ISSN: 1420-9071
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01960147
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Lymphatic metastasis; lymphangiochemotherapy of mammary cancer: ascitic form of rat mammary adenocarcinoma 13762 (1983)
    Springer
    Clinical & experimental metastasis 1 (1983), S. 29-38 
    Details
    ISSN: 1573-7276
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: When 5 million cells of the ascitic form of the RMT 13762 are injected into syngeneic F344 rat footpads there is consistent metastasis to the popliteal node more rapidly than when the solid form is used. A greater number of tumor cells escapes from the footpad to the draining node via the afferent lymph than with the solid tumor. Local intralymphatic injection of 5FU produces cure or retardation of nodal metastasis in a significant number of animals (p〈0–002).
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00118470
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Elektrochemie organischer Kationen. Arylsubstituierte Tropyliumsalze (1983)
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 325 (1983), S. 104-112 
    Details
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: Electrochemistry of Organic Cations. Arylsubstituted Tropylium SaltsThe electrochemical behaviour of some mono- and diarylsubstituted tropylium perchlorates in acetonitrile was investigated and is discussed in connection with their u. v.-vis absorption spectra.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prac.19833250113
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  • 5
    Electronic Resource
    Electronic Resource
    Zum Desaktivierungsverhalten photoangeregter Aryltropyliumionen. II. Fluoreszenzlöschung von Aryltropyliumionen (1982)
    New York, NY : Wiley-Blackwell
    Journal für Praktische Chemie/Chemiker-Zeitung 324 (1982), S. 925-932 
    Details
    ISSN: 0021-8383
    Keywords: Chemistry ; Organic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: About the Deactivation Behaviour of Photoexcited Aryltropyliumions. II. Fluorescence Quenching of AryltropyliumionsThe properties of aryltropyliumions in the excited singlet state were studied. These ions are very strong acceptors. So the fluorescence is quenched by aromatic donors. The rates of fluorescence quenching depend on the ionization potential of the donor. This fact is discussed in terms of mechanisms derived by WELLER et al. The results were related to the light stability of aryltropyliumions.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/prac.19823240610
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    Paper (German National Licenses)
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