Diurnal variations of lipogenic enzyme mRNA quantities in rat liver. |
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Authors: | H Fukuda N Iritani |
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Institution: | Tezukayama Gakuin College, Osaka, Japan. |
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Abstract: | The diurnal variations in mRNA quantities of lipogenic enzymes (acetyl-CoA carboxylase, fatty acid synthase, malic enzyme and glucose-6-phosphate dehydrogenase) in rat livers were detected. When the rats began feeding actively after lights out at 1900 h, the mRNA quantities were high from 0500 h to 0900 h in the morning. The variation in fatty acid synthase mRNA quantities was the most dramatic. However, no measurable variation in any enzyme levels including fatty acid synthase was detected. It may be because the half-lives of the enzymes are too long to be effected by the mRNAs which were high for several hours. |
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