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Endocrine parameters, hormone receptors, and functions of the testicular interstitium and seminiferous epithelium in estradiol-immunized Ile-de-France rams
gonadotropin secretion Leydig cells Sertoli cells FSH receptors androgen receptors
2009/2/23
The testicular response of Ile-de-France rams actively immunized against estradiol (E2) was evaluated during both the ovine nonbreeding season (spring) and breeding season (autumn). Plasma concentrati...
Effects of ethanol consumption on the morphology of the rat seminiferous epithelium
ethanol consumption morphology rat seminiferous epithelium
2009/2/23
The effects of ethanol consumption on the morphology of the seminiferous epithelium, with particular emphasis on Sertoli cell ultrastructure, were examined during and following pubertal developmen...
The effect of selective destruction and regeneration of rat Leydig cells on the intratesticular distribution of testosterone and morphology of the seminiferous epithelium
selective destruction regeneration rat Leydig cells intratesticular distribution
2009/2/23
This study was designed to explore the relationship between the intratesticular distribution of testosterone and spermatogenesis by completely destroying the Leydig cells of mature male rats with in...
The male antifertility agents alpha chlorohydrin, 5-thio-D-glucose, and 6-chloro-6-deoxy-D-glucose interfere with sugar transport across the epithelium of the rat caput epididymidis
rat epididymis sugar transport antifertility
2009/2/19
The effects of the male antifertility agents alpha-chlorohydrin, 5-thio-D-glucose, and 6-chloro-6-deoxy-D-glucose on sugar transport (3H-3-O-methyl-D-glucose and 3H-2-deoxy-D-glucose) across the r...
Synthesis and secretion of glycoprotein by the epididymal epithelium
Synthesis secretion glycoprotein epididymal epithelium
2009/2/19
The secretory activity of the middle segment of the mouse caput epididymidis was studied using 3H-fucose as a precursor to glycoprotein. Young adult male mice were injected with a concentrated sol...
The effects of aging on the seminiferous epithelium and the blood-testis barrier of the Brown Norway rat
seminiferous epithelium blood-testis barrier Brown Norway rat
2009/2/18
Steroidogenesis and spermatogenesis decrease in aging Brown Norway rats. We therefore hypothesized that there must be accompanying morphological changes taking place in the seminiferous tubules of...
Obstruction of the vas deferens alters protein secretion by the rat caput epididymidal epithelium in vivo
protein secretion rat caput epididymidal epithelium
2009/2/18
Obstruction of epididymal lumen fluid flow alters the intraluminal environment and potentially changes epididymal epithelial cell function when those functions are dependent on intraluminal regulato...
Apoptosis pattern elicited by several apoptogenic agents on the seminiferous epithelium of the adult rat testis
Apoptosis pattern apoptogenic agents seminiferous epithelium adult rat testis
2009/2/17
Spontaneous germ cell death during spermatogenesis is an important event, and the usefulness of the seminiferous epithelium as an in vivo model to study apoptosis has been evidenced. Nevertheless, the...
Haptoglobin is a Sertoli cell product in the rat seminiferous epithelium：its purification and regulation
Germ cell testis
2009/2/17
Using multiple HPLC steps, a protein of 67 kDa (estimated by gel permeation HPLC) was purified from Sertoli cell-enriched culture medium that consisted of two dissimilar subunits of 9 (alpha chain...
Mild hypothermia induces apoptosis in rat testis at specific stages of the seminiferous epithelium
Cell death spermatogenesis ferti
2009/2/17
This study was designed to determine the effects of short episodes of mild hypothermia on cell apoptosis in the testis of the adult rat. Apoptosis was assessed by in situ DNA 3'-end labeling in the ...
Expression of apolipoprotein E mRNA in the epithelium and interstitium of the testis and the epididymis
Apolipoprotein E mRNA Leydig cells Sertoli cells
2009/2/17
Apolipoprotein E (apo E) is an important constituent of plasma lipoproteins and is believed to be involved in the regulation of lipid transport and distribution between tissues. The production of ...
Stage-specific apoptosis in the rat seminiferous epithelium：quantification of irradiation effects
Testis rat apoptosis meiosis irradiation
2009/2/16
The effects of 3 Gy local X-irradiation on the adult rat testis were studied together with exact determination of the radiation dose distribution in the testis. Seminiferous tubule segments were i...
The duration of the cycle of the seminiferous epithelium is altered by administration of 2,5-hexanedione in the adult Sprague-Dawley rat
seminiferous epithelium 2,5-hexanedione adult Sprague-Dawley rat
2009/2/13
The duration of the cycle of the seminiferous epithelium is believed to be under genetic control rather than being influenced by other factors. However, the frequencies of certain spermatogenic stag...
Effect of mesenchymal glandular inductors on the growth and cytodifferentiation of neonatal mouse seminal vesicle epithelium
mesenchymal glandular inductors cytodifferentiation neonatal mouse seminal vesicle epithelium
2009/2/13
To investigate the developmental properties of glandular mesenchymal inductors along the cranial-caudal extent of the developing male urogenital tract, neonatal mouse seminal vesicle epithelium (S...
The effect of aging on the seminiferous epithelium of the brown Norway rat
seminiferous epithelium brown Norway rat
2009/2/12
Aging of the mammalian testis is often accompanied by loss of germ cells and, as a result, decreased daily sperm production. It is currently unknown whether cell loss is the result of aging-related ch...