Vitamin A deficiency and glucocorticoid receptor activity in rat liver

in Journal of Endocrinology
Authors:
I. Audouin
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H. Garcin
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I. Pailler-Rodde
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P. Higueret
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ABSTRACT

The influence of vitamin A on the binding properties of hepatic glucocorticoid receptors (GR) was studied in young rats 7 weeks after they had been given a diet with or without vitamin A. Scatchard analysis showed an increased capacity of cytosolic GRs to bind dexamethasone in vitamin A deficiency. In these rats, an increase in tyrosine aminotransferase also occurred, and this could be related to the increased formation of hormone–GR complexes. Measurement of protein kinase C activity showed an increase which might be related to the functional activity of GRs.

Journal of Endocrinology (1992) 133, 169–173

 

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