Transport of Hormones

1. Steroid hormone need to transport proteins to go to the target cell.

2. T4 is bound to albumin as well as globulin. (TBG) The protein bound form of T4 is 99.98% and the remainder exist as the free form.

3. Glucocorticoids bind to a globulin called transcortin or cortico steroid binding globulin . (CBG)

4. Testerone and estrogen bind to plasma globulin called sex hormone binding globulin (SHBG) or testerone estrogen binding globulin (TEBG).