Summary
Experimental data from studies on the antimutagenic activity of certain chemical substances are presented in a comparative manner. The fundamental possibility of the protecting activity of chemicals against the mutagenic and clastogenic side effects of ionizing radiations as well as chemical mutagens has been shown in a great variety of test organisms and experimental systems. Conclusions and problems resulting from these data are discussed. Although most experiments on antimutagenesis must be understood as model tests for clearing up fundamental problems the practical importance of these studies it yet beyond all doubts. From the presented data results the necessity of a rapid development of practically applicable antimutagens which combine a high degree of efficacy and a wide spectrum of activity with good compatibility and applicability in man. A lot of further antimutagenicity studies including the highly relevant mammalian test systems will be necessary before achieving this object.
Zusammenfassung
Eine Reihe von experimentellen Ergebnissen aus Untersuchungen über die antimutagene Wirksamkeit bestimmter chemischer Substanzen wird vergleichend dargestellt. Die grundsätzliche Möglichkeit einer Schutzwirkung von Chemikalien gegen die mutagenen und clastogenen Nebenwirkungen ionisierender Strahlen und chemischer Mutagene wurde an einer Vielzahl von Versuchsorganismen und Testsystemen gezeigt. Die sich aus diesen Untersuchungen ergebenden Folgerungen und Probleme werden diskutiert. Wenngleich die meisten Antimutagenese-Experimente als Modelluntersuchungen zur Klärung prinzipieller Fragestellungen aufzufassen sind, liegt die praktische Bedeutung solcher Untersuchungen bereits heute klar auf der Hand. Aus den vorliegenden Ergebnissen ergibt sich die Notwendigkeit einer raschen Entwicklung von praktisch verwendbaren Antimutagenen, die einen hohen Grad an Wirksamkeit und ein breites Wirkungsspektrum mit möglichst weitgehender Verträglichkeit und Anwendbarkeit beim Menschen verbinden. Dazu sind weitere umfangreiche Antimutagenese-Untersuchungen unerläßlich, in die vor allem die besonders relevanten Säuger-Testsysteme einbezogen werden müssen.
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Gebhart, E. Antimutagens. Hum Genet 24, 1–32 (1974). https://doi.org/10.1007/BF00281107
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DOI: https://doi.org/10.1007/BF00281107