Strategies for the Use of a Multiple-Endpoint System for Mammalian Germ Cell Mutation Testing

  • S. E. Lewis
  • L. B. Barnett
  • L. S. Niedziela
Part of the Reproductive Biology book series (RBIO)


There are specific advantages to the use of a multiple-endpoint system, as opposed to any individual in vivo mutation test system. First of all, a larger sampling of the genome becomes possible than with any individual system. It has become clear that some loci (both within and between systems) appear to be more sensitive to mutagens (Favor, 1989; Neel and Lewis, 1990). By examining a broad spectrum of loci, as is possible in a multiple-endpoint system, a better idea of differential sensitivities of regions of the genome becomes possible. Furthermore, it permits more effective use of resources by performing multiple assays on the same animals. This capability is especially valuable in experiments on postgonial stages and those experiments in which fertility is affected by the test compound. Finally, a multiple-endpoint system allows for flexibility. It is clearly an option to add other assays which may become available in the future and to allow selective use of individual endpoints, according to the requirements of a given experiment.


Atomic Bomb Survivor Human Carbonic Anhydrase Electrophoretic System Human Risk Assessment Human Disease Model 
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Copyright information

© Springer Science+Business Media New York 1994

Authors and Affiliations

  • S. E. Lewis
    • 1
  • L. B. Barnett
    • 1
  • L. S. Niedziela
    • 1
  1. 1.Chemistry and Life Sciences Research Triangle InstituteResearch Triangle ParkUSA

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