Age-related change in numbers of other interstitial cells in testes of adult men: evidence bearing on the fate of Leydig cells lost with increasing age.

The number of Leydig cells in the adult human testis declines as a function of increasing age, but whether these cells disappear by transforming into another cell type or by undergoing death and dissolution has not been resolved. This question was addressed in 30 men between 20 and 76 years of age who were known as a group to have experienced significant… CONTINUE READING