1. Effect of rejuvenation hormones on spermatogenesis
Jared L. Moss, M.D., Lindsey E. Crosnoe, B.S., Edward D. Kim, M.D. 
Fertility and Sterility 
Volume 99, Issue 7, Pages (June 2013)
DOI: /j.fertnstert
Copyright © 2013 American Society for Reproductive Medicine Terms and Conditions

2. Figure 1
Rejuvenation hormones and mechanism of action. Exogenous testosterone and anabolic androgenic steroids (AAS) negatively affect the hypothalamic-pituitary-gonadal (HPG) axis. Selective estrogen receptor modulators (SERMs) block the negative feedback of estrogen on the HPG axis. Human chorionic gonadotropin (hCG) stimulates Leydig cells. Aromatase inhibitors prevent the conversion of testosterone to estrogen.
Fertility and Sterility  , DOI: ( /j.fertnstert )
Copyright © 2013 American Society for Reproductive Medicine Terms and Conditions