The hypothesis on a relationship between the high frequency of mitotic disturbances in bone marrow cells and the change in the activity of the S9 liver fraction containing promutagen-activating enzymes under olfactory stress in the house mouse Mus musculus has been tested. For this purpose, the effect of the pheromone 2,5-dimethylpyrazine on the frequency of mitotic disturbances in mouse bone marrow cells has been measured by the anaphase-telophase assay. In paralled, we compared the capacities of the S9 liver fractions from stressed and intact mice for activating the promutagen 2-aminofluorene in the Ames test utilizing Salmonella typhimurium. It has been demonstrated that the increased frequency of mitotic disturbances in bone marrow cells induced by the pheromonal stressor in male house mice is accompanied by an increased ability of the S9 liver fraction to activate the promutagen. The model system used in the study allowed the genetic consequences of the exposure to the olfactory stressor to be estimated and the possible mechanisms of genome destabilization to be assumed.
Russian Journal of Genetics – Springer Journals
Published: Oct 8, 2011
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