Systems ensuring protection of human cells against endogenous and exogenous mutagenic factors are considered in terms of genetic polymorphism. Some protection mechanisms are described, including those connected with capturing free radicals, biotransformation of xenobiotics, excision repair of DNA damage (excision of nitrous bases, nucleotides, mismatch repair). A special section is devoted to some issues of using antimutagens in context of genetic polymorphism. The problem of adaptive response is discussed, providing evidence for independence (in some cases) of DNA repair systems and the formation of adaptive response. Some results of the author obtained many years ago but still relevant are presented.
Russian Journal of Genetics – Springer Journals
Published: May 10, 2005
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