Pregnant rats were treated with dexamethasone in drinking water (10 micrograms/ml) from the 15th to the 22nd day of pregnancy. Dexamethasone significantly reduced the weight of rat fetuses and concentration of DNA, RNA and proteins in fetal adrenal glands, liver, placenta, brain, kidneys, heart, lung, testes and pituitary from the 17th to the 22nd day of pregnancy. These data show that dexamethasone given to pregnant rat may lead to potentially deleterious effects on fetal rat development.
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