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Zh Vyssh Nerv Deiat Im I P Pavlova. 2007 Mar-Apr;57(2):221-8.

[Influence of ionizing radiation on the attractiveness of male mice to chemosignals of intact individuals].

[Article in Russian]


Within short-terms after exposure to ionizing radiation, CBA and C57Bl/6 male mice were found not only to retain but also to enhance their attractiveness to chemosignals of intact males of the same genotype (syngenic). It was shown that the time period of higher attractiveness increased with the absorbed dose (from 1 to 6 Gy). Within several days after exposure to 6-Gy irradiation, male mice were temporarily unable to discriminate between chemosignals of syngenic and allogenic (alien genotype) individuals. Unlike male mice of the CBA strain, male mice of the C57Bl/6 strain displayed no changes after exposure to 1-Gy irradiation, but the effect of 2-6 Gy was more persistent. These phenomena can be explained by the lower olfactory reactivity combined with higher radiosensitivity of C57Bl/6 mice. Irradiated male mice temporarily lost their olfactory ability to discriminate the genotype of females' volatile secretions and to distinguish between females' and males' volatile secretions.

[Indexed for MEDLINE]

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