Effect of transurethral resection of prostate on plasma hormone levels in benign prostatic hyperplasia.

Circulating levels of pituitary and adrenal hormones were measured in patients with benign prostatic hyperplasia before and after transurethral resection of the prostate (TURP). TURP caused a significant increase in plasma LH levels 2 weeks and 3 weeks after surgery. The plasma prolactin level decreased significantly 3 weeks after prostatectomy but plasma concentrations of FSH and ACTH were unchanged. TURP did not alter circulating levels of aldosterone, cortisol, DHEA-S and testosterone. These data suggest that the human prostate has a role in regulating the pituitary secretion of LH and prolactin.