OXTR and urinary bladder cancer: These findings were similar to those reported by Li et al. (2018), who examined the effects of hyperplastic prostate on OXTR expression within the testosterone estradiol-induced rat model (n = 15; 12-week-old Wistar rats) and human hyperplastic prostatic specimens (n = 9; mean age, 67.7 ± 2.1 years) undergoing cystoprostatectomy for infiltrating bladder cancer without prostate infiltration.