Abstract
A small i.v. dose (3 mg/kg) of a light lanthanon, praseodymium, impairs the drug metabolizing capacity of both the smooth and rough fractions of rat liver endoplasmic reticulum. This decrease in the activity of drug metabolizing enzymes and in the amount of cytochromes P-450 and b5 is more pronounced in the rough endoplasmic reticulum fraction.
MeSH terms
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Animals
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Aryl Hydrocarbon Hydroxylases / metabolism*
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Cytochrome P-450 Enzyme System / metabolism*
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Endoplasmic Reticulum / drug effects
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Endoplasmic Reticulum / enzymology*
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Female
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Liver / drug effects
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Liver / enzymology*
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Microsomes, Liver / drug effects
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Microsomes, Liver / enzymology*
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Praseodymium / pharmacology*
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Rats
Substances
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Cytochrome P-450 Enzyme System
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Aryl Hydrocarbon Hydroxylases
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Praseodymium