Ultractructural study of seminiferous tubules in ageing men revealed a varying degree of
spermatogenetic arrest associated with changes in the Sertoli cells. Approximately half of …

The observation of different types of seminiferous tubules (from tubules with normal
spermatogenesis to sclerosed tubules) in aging human testes points to the progressive …

The ultrastructure of the progressive testicular involution with advancing age in men is
reviewed. There is no definite age at which testicular involution begins, and the onset and …

As revealed by light microscopical investigations the human Sertoli cell presents different
appearances according to the pattern of infranuclear cytoplasmic inclusions. Although two or …

The purpose of this study was to examine the fine structure of Sertoli cells in patients with a
severe or complete depletion of germ cells. In normal seminiferous tubules Sertoli cells are …

Sertoli cell ultrastructure was compared in men with testicular disorders (
hypospermatogenesis; germ cell aplasia) and men with normal testes to determine if any …

The present investigation is concerned with the morphological changes observed in human
testicular tissue following prolonged estrogen administration. Testicular material obtained …

Sertoli cells are present in the seminiferous tubules of the male gonads, the testes. They
were first observed in 1865 by a young Italian physician Enrico Sertoli and named after him …

The present investigation documents morphological characteristics of human Sertoli cells of
aged males. Testicular material was obtained from 35 patients (age 62–84 years) with …

Two types of degenerating seminiferous tubules were found in cryptorchid testes with Sertoli
cell hyperplasia of children and adults: 1) tubules with central degeneration, and 2) tubules …