Pre- and postnatal enzyme capacity for drug metabolite production.


Most lipid-soluble foreign compounds including drugs, insecticides and many environmental pollutants are metabolized in animals by cytochrome P-450 enzymes in the endoplasmic reticulum of liver. These enzymes are virtually absent in fetuses of laboratory animals, but their activities increase to adult levels within 3-8 weeks after birth. In human fetuses… (More)


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