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The occurrence of diverticula in human seminiferous tubules was investigated in the adult human testis in normal as well as physiologic (aging) and pathologic (germ cell depletion, obstruction of ma...
Tubular boundary tissue and seminiferous epithelia were evaluated stereologically in testes from 28 men aged 20 to 48 years and 28 men aged 50 to 90 years. Testes obtained at autopsy within 15 hours...
The maturation of spermatozoa in the epididymis is dependent upon the presence of androgens. This study examined the effects of androgen suppression by estradiol valerate on the elemental compositio...
A microdissection procedure is described that allows the isolation of segments of rat seminiferous tubules in different stages of the epithelial cycle. This procedure is based on spermatogenic sta...
The objective of this research was to determine if experimental cryptorchidism causes significant changes in the rat blood-testis barrier. Micropuncture of the seminiferous tubules of normal, sham...
The mode of renewal of mononuclear leukocytes found between the myoid cells forming the limiting membrane of rat seminiferous tubules was investigated by histometric methods. The average number of...
The hamster testis was studied by light and electron microscopy at intervals of two weeks, five months, and one year after vasectomy. No changes were detected at two weeks, but most testes showed mi...
The effect of testicular germ cell content on Leydig cell steroidogenic function in vivo in adult rats was examined. Three experimental paradigms were used to effect germ cell changes. First, a vita...
The testes of busulfan-treated immunodeficient mice receiving seminiferous tubule injections of testis cells from rats were examined by light and electron microscopy. The presence of active rat sper...
The aim of this study was to investigate the effect of testosterone manipulation on the quantitative synthesis and secretion of a number of specific proteins produced by seminiferous tubules (ST) ...
Although evidence of the spermatogenic wave in humans has been reported, little is known about the architectural arrangement of stages along the length of tubules in men with varied rates of sperm p...
While entactin has been recently reported in the mouse seminiferous tubule lamina propria at the light microscope level, the purpose of this paper was twofold: 1) to determine the ultrastructural ...
Production of several proteins by rat Sertoli cells is dependent on the stage of the cycle of the seminiferous epithelium. The authors have determined steady state levels and follicle-stimulating ...
Stage-specific binding of follicle-stimulating hormone (FSH) was measured in rat seminiferous tubules. The binding in single-point assays was over 3-fold higher (P less than 0.05) in stages XIII t...
Testicular development is initiated with the differentiation of Sertoli cells in the embryonic gonad. The aggregation of Sertoli cells is crucial for the generation of testicular cords and thus for ...

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