Abstract
Despite evidence that thyroidal activity, gonadal hormones and food intake can modify steroidal metabolism in the liver, the regulatory mechanisms involved are not clear. These studies suggest that a modification of energy metabolism can influence the corticosteroid metabolism. Corticosteroids, through their stimulation of hepatic carbohydrate synthesis, can modify energy metabolism. Therefore, the influence of corticosteroids upon the Δ4-3-ketosteroid reductase activity in the liver has been investigated in male rats and hamsters. Cortisol 1,2-3H was incubated with liver slices from animals treated with triamcinolone and from untreated controls. In the intact and adrenalectomized animals, treatment caused an elevation in both the steroid reducing capacity and the glycogen content. Similarly, feeding increased the reduction of cortisol in both intact and adrenalectomized animals. Thus, this increased rate of reduction of corticosteroids in the liver caused by the administration of triamcinolone could be s...
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