propecia/5AR inhibitor question for Dr. John

[gimp]

Hello doc.

For about 5 years I was running propecia to control hair loss. I went off of it at the end of a cycle three years ago. My question is this:

Is there any evidence that using a 5AR inhibitor for an extended period of time can cause increased sensitivity to DHT in the prostate or other tissues, once the administration is ceased?

Thanks.