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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
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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
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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
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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 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
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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...
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
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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
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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
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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 ...
Stage-specific apoptosis in the rat seminiferous epithelium：quantification of irradiation effects
Testis rat apoptosis meiosis irradiation
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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
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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...
The effect of aging on the seminiferous epithelium of the brown Norway rat
seminiferous epithelium brown Norway rat
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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...
Computer tracking of germ cells in the cycle of the seminiferous epithelium and prediction of changes in cycle duration in animals commonly used in reproductive biology and toxicology
Testis spermatogenesis kinetics male germ cells toxicology modelling
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2009/2/10
A computer program called Stages was written to aid the tracking of germ cells and stages forward and backward through time in the cycle of the seminiferous epithelium. The program incorporates the ...
Does ethane 1,2-dimethanesulphonate（EDS）have a direct cytotoxic effect on the seminiferous epithelium of the rat testis?
spermatogenesis cytotoxic testosterone testes rat
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2009/2/6
The authors examined the possibility that ethane 1,2-dimethanesulphonate (EDS) has a cytotoxic effect on spermatogenesis that is not secondary to androgen withdrawal resulting from the well known cy...
DNA-flow cytometry of defined stages of rat seminiferous epithelium: effects of 3 Gy of high-energy X-irradiation
testis Sertoli germ cell
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2009/2/6
Testes of adult Sprague-Dawley rats were irradiated locally by 3 Gy of 4 MeV X-rays produced by a linear accelerator. This type and dose of radiation gives an even distribution through the testis an...
Structure and control of a cell-cell adhesion complex associated with spermiation in rat seminiferous epithelium
Cadherins cell adhesions control integrins spermiation
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2008/12/29
Spermiation, the release of late spermatids from the Sertoli cell, is disrupted by a number of toxicants. Control of the spermiation process, and the proteins that interact to adhere mature spermati...
Zyxin, Axin, and Wiskott-Aldrich Syndrome Protein Are Adaptors That Link the Cadherin/Catenin Protein Complex to the Cytoskeleton at Adherens Junctions in the Seminiferous Epithelium of the Rat Testis
Sertoli cells testis adaptors
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2008/12/22
During spermatogenesis, the movement of germ cells across the seminiferous epithelium is associated with extensive junction restructuring. Yet the underlying mechanism (or mechanisms) that regulates...