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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Journal of cancer research and clinical oncology 76 (1971), S. 145-154 
    ISSN: 1432-1335
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Zusammenfassung Nach in vivo Applikation von 1-[14C]-Di-n-propyl- und 1-[14C]-Din-butylnitrosamin bei Batten können 7-[14C]-n-Propyl- bzw. 7-[14C]-n-Butylguanin sowie 7-[14C]-Methylguanin in den Ribonucleinsäuren der Leber nachgewiesen werden. Nach Gabe von 2-[14C]-Di-n-propylnitrosamm war eine Bildung von [14C]-7-Methylguanin nicht nachweisbar. Es wurde im RNS-Hydrolysat nur 7-[14C]-n-Propylguanin gefunden. Aus diesen Befunden wird geschlossen, daß die Alkylketten von Di-n-Alkylnitrosaminen in vivo metabolisch zwischen dem α- und dem β-C-Atom unter Bildung einer methylierenden Verbindung gespalten werden.
    Notes: Summary The in vivo application of 1-[14C]-di-n-propyl- and 1-[14C]-di-n-butylnitrosamine leads to formation of 7-[14C]-n-propyl- and 7-[14C]-n-butylguanine in the RNA of rat liver. 7-[14C]-methylguanine is simultaneously formed after application of both compounds. No labelled [14C]-7-methylguanine, however, could be detected when 2-[14C]-di-n-propylnitrosamines was applied. In this case only 7-[14C]-n-propylguanine was found. This leads to the conclusion that the aliphatic chains of di-n-alkylnitrosamines are metabolically split between the α- and the β-carbon during metabolism forming a methylatmg compound.
    Type of Medium: Electronic Resource
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