Abstract
Glucocorticoids are essential hormones produced by the adrenal cortex with prominent circadian rhythmicity and in times of stress. Glucocorticoids maintain liver homeostasis through coordinated activities that control the major pathways of energy metabolism. Glucocorticoids activate the glucocorticoid receptor (GR), a nuclear hormone receptor that regulates the transcription of hundreds of genes in response to ligand. This review aims to provide a comprehensive overview of glucocorticoid receptor signaling impact on glucose, amino acid, and lipid metabolism in the liver. We integrate fundamental and current findings elucidating key GR-regulated pathways from a physiologic, biochemical, and molecular point-of-view. Here, we focus on the transcriptional regulation of well-characterized hepatic GR target genes, and on those GR co-factors that coordinate nutritional and hormonal signals.
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