I'm going to have to disagree with this article as being antiquidated. The regulation of the androgen receptor just isn't as simple as down-regulation of gene expression by AAS over-exposure. Rather, it occurs through the receptor's ability to induce transcription-activating proteins through the medication of protein co-activators. Now this second process is influenced by long-term AAS use and so it can be said that long-term AAS use does cause desenitisation in that it less-effectively induces the transcription mechanism that is responsible for growth.