Carcinogenesis, Vol 18, 791-793, Copyright © 1997 by Oxford University Press
BE Walker and MI Haven
Mice exposed prenatally to diethylstilbestrol (DES-exposed mice) can
transmit a carcinogenic influence to the next generation (DES-lineage mice)
when mated to control mice. The persistence of this effect was studied one
generation further (DES-lineage-2 mice) by mating DES- lineage female mice
to control males. The interaction of maternal dietary fat levels with DES
was also tested by feeding high and low levels of dietary fat during the
pregnancies that produced the final two generations. DES-lineage-2 mice,
exposed to low or high fat maternal diets, had significantly more tumors
than control mice with corresponding dietary fat exposure. The frequency of
tumors in DES- lineage-2 mice was not significantly lower than in
DES-lineage mice from a previous experiment. Thus, the multigenerational
effect of DES is relatively intense in mice. If this type of carcinogenesis
can occur in the human population, it poses a major threat to future
generations.
ARTICLES
Intensity of multigenerational carcinogenesis from diethylstilbestrol in mice
Department of Anatomy, Michigan State University, East Lansing 48824- 1316, USA.
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