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, 190 (1), 19-24

Synaptonemal Complex Damage as a Measure of Chemical Mutagen Effects on Mammalian Germ Cells

Synaptonemal Complex Damage as a Measure of Chemical Mutagen Effects on Mammalian Germ Cells

J W Allen et al. Mutat Res.

Abstract

As heritable chromosome anomalies are implicated in a variety of human disabilities, their induction in germ cells by environmental chemicals is viewed as a threat to health (National Research Council, 1982; Hook, 1983). Synaptonemal complex (SC) analysis is a novel approach for the detection of germ-line chromosomal damage. This sensitive cytological procedure reveals induced structural damage and pairing abnormalities in SCs of meiotic prophase chromosomes, together with other germ-line toxic effects, in the testes of rodents treated with mitomycin C and cyclophosphamide. Our results demonstrate the effectiveness of SC analysis as a rapid and practical in vivo germ-line mutagen assay that lacks many of the short-comings of existing tests.

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