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Sperm count and sperm abnormality in male mice after exposure to 2.45 gigahertz microwave radiation

, : Sperm count and sperm abnormality in male mice after exposure to 2.45 gigahertz microwave radiation. Mutation Research 122(2): 155-162

Adult male mice had the posterior halves of their bodies exposed at 44 W/kg in a waveguide system to 2.45 GHz microwave radiation for 30 min. They were killed sequentially over 10 wk and assessed for decreased sperm count and abnormal sperm morphology. The response in each assay was maximal 2-4 wk after the exposure. This corresponds to microwaves having their greatest effect on spermatids and spermatocytes. Male fertility, assessed as the proportion of normal sperm per epididymis, was compared with results of an earlier study on dominant lethality. Reduced male fertility correlates well with reduced pregnancy rate but less well with pre-implantation survival. While microwaves clearly induced abnormally shaped sperm, those which achieved fertilization cannot have possessed a dominant mutation which would result in the post-implantation death of the embryo.

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