Levels of inhibin in human semen and accessory reproductive organs.

Levels of inhibin in the seminal plasma of oligozoospermic and normozoospermic semen and normal human accessory reproductive organs were estimated using specific and sensitive radioimmunoassay (RIA). Seminal inhibin content showed a positive correlation (r = 0.827) with the sperm concentration. Further, in the human accessory reproductive organs, prostate showed maximum content of inhibin as compared to the seminal vesicle and the epididymis.