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Androgens in various fluid compartments of the rat testis and epididymis after hypophysectomy and gonadotropin supplementation
androgens testis epididymis hypophysectomy rat
2009/2/23
Hypophysectomized male rats were administered LH or LH + FSH for 14 days and subjected to in vivo micropuncture collection of reproductive tract fluids to determine if FSH alters the compartmentaliz...
Modification of Sertoli Cell Responsiveness to FSH by Cryptorchidism and Hypophysectomy in Immature and Adult Rats
rat cryptorchidy hypophysectomy cAMP Sertoli cell
2009/2/19
Cryptorchid or hypophysectomized rats were used as models to examine the possible relationships between germ cell development and gonadotropins in the agerelated decline in the responsiveness of t...
Hormonal regulation of spermatogenesis in the hypophysectomized rat: quantitation of germ-cell population and effect of elimination of residual testosterone after long-term hypophysectomy
Testis germ cells androgen morphometry
2009/2/17
Spermatogenesis continues after long-term hypophysectomy (Hx), but massive cell degeneration prevents seminiferous tubules from attaining the full complement of cells. One objective of this study ...
Hormonal regulation of spermatogenesis in the hypophysectomized rat：cell viability after hormonal replacement in adults after intermediate periods of hypophysectomy
Testis testosterone FSH
2009/2/17
A quantitative analysis of germ-cell populations in normal, hypophysectomized (Hx), and Hx-hormone-treated animals was undertaken during periods of regression that were characterized as intermedia...
Entactin ultrastructural immunolocalization in the basal laminae of mouse seminiferous tubules and with only subtle changes following hypophysectomy
Entactin ultrastructural immunolocalization basal laminae of mouse seminiferous tubules subtle changes hypophysectomy
2009/2/12
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 ...
Effects of hypophysectomy and alterations in spermatogenic function on Leydig cell volume, number, and proliferation in adult rats
Pituitary spermatogenesis luteinizing hormone Leydig cell proliferation
2009/2/6
The two major objectives of this study were to determine (i) whether the pituitary is required to maintain Leydig cell number per testis, and (ii) whether alterations in spermatogenic function in ...
cAMP response of cultured Sertoli cells from immature and adult hamsters. Effect of hypophysectomy and cryptorchidism
cultured Sertoli cells immature and adult hamsters hypophysectomy cryptorchidism
2009/2/6
The ability of FSH to stimulate cAMP accumulation in Sertoli cells cultured from either hamsters or rats declines with the age of the animal. Hypophysectomy or bilateral cryptorchidism of immature r...