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  • Title: Effect of thyroid hormone on hepatic cholesterol 7 alpha hydroxylase, LDL receptor, HMG-CoA reductase, farnesyl pyrophosphate synthetase and apolipoprotein A-I mRNA levels in hypophysectomized rats.
    Author: Ness GC, Pendleton LC, Li YC, Chiang JY.
    Journal: Biochem Biophys Res Commun; 1990 Nov 15; 172(3):1150-6. PubMed ID: 2123100.
    Abstract:
    The effects of thyroid hormone on cholesterol 7 alpha hydroxylase, LDL receptor, HMG-CoA reductase, apo A-I and farnesyl pyrophosphate synthetase hepatic mRNA levels were investigated in hypophysectomized rats. Of these mRNAs cholesterol 7 alpha hydroxylase responded the most rapidly and required the lowest dose of T3. Maximal mRNA levels were reached one hr after T3 administration and required 10 micrograms/100g of body weight. These results suggest that the hypocholesterolemic effect of thyroid hormone may be mediated by a primary effect on cholesterol 7 alpha hydroxylase gene expression.
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