Testosterone Alters Iron Metabolism and Stimulates Red Blood Cell Production Independently of Dihydrotestosterone
July 2014
in “
American Journal of Physiology-Endocrinology and Metabolism
”
TLDR Testosterone boosts red blood cell production and changes iron metabolism without needing dihydrotestosterone.
The study investigated the effects of testosterone-enanthate (TE) on red blood cell production and iron metabolism in 60 older hypogonadal men over 12 months. TE increased red blood cell count, hematocrit, and hemoglobin while significantly reducing serum hepcidin, indicating enhanced iron utilization for erythropoiesis. The use of finasteride, a 5α-reductase inhibitor, did not alter these effects, demonstrating that TE stimulated erythropoiesis and altered iron homeostasis independently of dihydrotestosterone (DHT). The findings suggested that elevated DHT was not necessary for these androgen-mediated effects, supporting the potential of TE in treating anemia in hypogonadal men without requiring DHT conversion.