Sex‐related differences in cytogenetic effects of benzene in the bone marrow of swiss mice

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Abstract
Two routes of administration - intraperitoneal injection and oral gavage - and two methods of analysis - direct metaphase preparations and the micronucleus test - were used to investigate the cytogenetic effects of benzene exposure in the bone marrow of female and male Swiss (CD-1) mice. The males demonstrated higher mean frequencies of metaphase aberrations and micronuclei after both routes of administration. The frequencies of metaphase aberrations appeared to be sex-related and independent of the route of exposure, however, while the frequencies of micronuclei appeared to be dependent upon both the sex of the animals and the route of administration.

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