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  • Adverse effects of the model environmental estrogen diethylstilbestrol are transmitted to subsequent generations
  • Newbold RR; Padilla-Banks E; Jefferson WN
  • Endocrinology 2006[Jun]; 147 (6 Suppl): S11-7
  • The synthetic estrogen diethylstilbestrol (DES) is a potent perinatal endocrine disruptor. In humans and experimental animals, exposure to DES during critical periods of reproductive tract differentiation permanently alters estrogen target tissues and results in long-term abnormalities such as uterine neoplasia that are not manifested until later in life. Using the developmentally exposed DES mouse, multiple mechanisms have been identified that play a role in its carcinogenic and toxic effects. Analysis of the DES murine uterus reveals altered gene expression pathways that include an estrogen-regulated component. Thus, perinatal DES exposure, especially at low doses, offers the opportunity to study effects caused by weaker environmental estrogens and provides an example of the emerging scientific field termed the developmental origin of adult disease. As a model endocrine disruptor, it is of particular interest that even low doses of DES increase uterine tumor incidence. Additional studies have verified that DES is not unique; when other environmental estrogens are tested at equal estrogenic doses, developmental exposure results in increased incidence of uterine neoplasia similar to that caused by DES. Interestingly, our data suggest that this increased susceptibility for tumors is passed on from the maternal lineage to subsequent generations of male and female descendants; the mechanisms involved in these transgenerational events include genetic and epigenetic events. Together, our data point out the unique sensitivity of the developing organism to endocrine-disrupting chemicals, the occurrence of long-term effects after developmental exposure, and the possibility for adverse effects to be transmitted to subsequent generations.
  • |Animals[MESH]
  • |Diethylstilbestrol/*toxicity[MESH]
  • |Endocrine Disruptors/*toxicity[MESH]
  • |Environmental Exposure[MESH]
  • |Epigenesis, Genetic/drug effects[MESH]
  • |Estrogens/toxicity[MESH]
  • |Female[MESH]
  • |Gene Expression/drug effects[MESH]
  • |Genital Neoplasms, Female/chemically induced/genetics[MESH]
  • |Genital Neoplasms, Male/chemically induced/genetics[MESH]
  • |Humans[MESH]
  • |Infant, Newborn[MESH]
  • |Male[MESH]
  • |Pregnancy[MESH]
  • |Prenatal Exposure Delayed Effects[MESH]
  • |Uterine Neoplasms/chemically induced[MESH]

  • *{{pmid16690809}}
    *<b>[ Adverse effects of the model environmental estrogen diethylstilbestrol are transmitted to subsequent generations ]</b> Endocrinology 2006; 147(6 Suppl) ; S11-7 Newbold RR; Padilla-Banks E; Jefferson WN


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    S11 6 Suppl.147 2006