Avian steroid hormones and their control of gene expression

Avian steroid hormones and their control of gene expression 

The essential steps in steroid hormone action are as follows. First, the circulating hormone is taken up by the target tissue being a hydrophobic molecule it is able to pass through the cell membrane without specific membrane receptors. The hormone then binds to a specific intracellular receptor. Until recently. 

Genes identified as being expressed in some target tissues 

Thecal cells of the ovary Female 0.02-0.9 Thecal cells of the ovary Female 0.6-1.3 

Oviduct, liver, hypothalamus, pituitary Oviduct, liver 

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