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. 1990 Nov 15;172(3):1150-6.
doi: 10.1016/0006-291x(90)91568-d.

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

G C Ness  1 , L C Pendleton, Y C Li, J Y Chiang
Affiliations

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

G C Ness et al. Biochem Biophys Res Commun. .

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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