In summary, estradiol treatment caused a reduction in androgen receptors, and estradiol withdrawal lead to a rise in androgen receptors. We believe that these results provide a mechanism whereby estradiol may directly antagonize androgen action. Conversely, estradiol withdrawal may potentiate androgen action by allowing androgen receptor levels to rise. This hypothesis may help explain the basis of the estrogen/androgen ratio as a predictor of sex steroid response.
On the flip side? What happens with Testosterone treatment? Which receptors get depleted? And with Testosterone withdrawal, which receptors regenerate?