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Liver microsome phospholipids and cytochrome P.450 conceptration in phenobarbital treated rats fed on different diets
Authors:J. Mounié  K. Bereksi-Reguig  H. Goudonnet  A. Escousse  R. Truchot
Affiliation:Laboratoire de Biochimie Pharmaceutique, UER des Sciences Pharmaceutiques et Biologiques, 7 Boulevard Jeanne d''Arc- 21000 Dijon, France
Abstract:Liver microsomal concentration of cytochrome P.450 is increased in animals which are fed diets rich in polyunsaturated fatty acids. On the other hand, the effects of phenobarbital are more important when the dietary fat is more unsaturated. The unsaturation index in liver microsomal phosphatidylcholines depends on the unsaturation of the dietary fats. The treatment with phenobarbital constantly results in a decrease of the unsaturation index of fatty acids both in lecithins and cephalins. The importance of the liver microsomal cytochrome P.450 increase and the importance of the unsaturation index decrease in liver microsomal lecithins, both promoted by phenobarbital, are in good agreement.
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