Distribution of immunoreactive inhibin like material in different regions of human prostate

Distribution of immunoreactive inhibin material (IR-ILM) in different regions of human prostate was studied by using specific radio-immunoassay. Mean IR-ILM concentrations in the central, peripheral and periurethral zones were 27.3 +/- 9.3, 2.4 +/- 0.7 and 3.0 +/- 1.5 micrograms/mg protein respectively (P central vs periurethral and peripheral less than 0.05).