Reports

Drug-Induced Changes in the Liver Endoplasmic Reticulum: Association with Drug-Metabolizing Enzymes

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Science  27 Dec 1963:
Vol. 142, Issue 3600, pp. 1657-1658
DOI: 10.1126/science.142.3600.1657

Abstract

The cellular changes which lead to the increase of drug-metabolizing enzymes following drug administration are explained by correlating new biochemical data with previously reported electron microscopic and pharmacologic observations. Repeated administration of phenobarbital and several other drugs results in a quantitative increase of the smooth endoplasmic reticulum of the liver cell. The marked increase in drug-metabolizing enzymes is found to occur in this enlarged smooth membrane fraction of the endoplasmic reticulum.

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