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Transplantation of newborn rat testis under the kidney capsule of adult host as a model to study the structure and function of Leydig cells
newborn rat testis kidney capsule adult host Leydig cells
2009/2/23
Newborn rat testis was transplanted under the kidney capsule of adult castrated and uncastrated male rats to develop and characterize a model system for studies on Leydig cell development. Two weeks...
Polyamine profiles in rat testis, germ cells and Sertoli cells during testicular maturation
Polyamine profiles rat testis germ cells Sertoli cells
2009/2/23
Polyamine cellular concentrations (putrescine, spermidine and spermine) in the rat testis and testicular cell types were determined by fluorescence spectroscopy of their dansyl derivatives. A met...
Effects of prolactin on luteinizing hormone-stimulated testosterone secretion in isolated perfused rat testis
prolactin testes luteinizing hormone testosterone secretion
2009/2/23
The direct peripheral effect of prolactin on LH-stimulated testosterone secretion was re-evaluated using the intact, isolated, perfused rat testis. In paired experiments, one testis was infused wi...
Radioautographic localization of atrial natriuretic factor receptors in the rat testis
Radioautographic localization atrial natriuretic factor receptors rat testis
2009/2/23
Recent data have suggested that atrial natriuretic factors (ANFs) can modulate Leydig cell functions. An in vitro radioautographic procedure on slide-mounted frozen testicular sections was used to l...
Characterization and localization of beta-adrenergic receptors in control and cryptorchidized rat testis by in vitro autoradiography
$-adrenergic receptors autoradiography cryptorchidectomy rat testis Sertoli cells
2009/2/23
beta-adrenergic receptors were localized and characterized in control and cryptorchidized rats to investigate further their role in testicular function. Slide-mounted cryostat sections were incubate...
Morphologic changes induced by short-term ischemia in the rat testis are not affected by treatment with superoxide dismutase and catalase
short-term ischemia rat testis superoxide dismutase and catalase
2009/2/23
Short-term testicular ischemia was induced unilaterally by ligating the testicular artery for 60 or 100 minutes in adult rats. After 7 days, the rats were fixed by vascular perfusion. The effect of ...
Effects of diazacholesterol dihydrochloride（SC-12937）, an avian antifertility agent, on rat testis
testis germ cell Sertoli cell antifertility agent SC-12937 rat
2009/2/23
The present study was undertaken to evaluate the effectiveness of an avian chemosterilant, 20, 25-diazacholesterol dihydrochloride (SC-12937), on the rat testis. Adult male rats were injected intrap...
Effects of neonatal estrogen administration on rat testis development with particular reference to Sertoli cells
neonatal estrogen administration rat testis development Sertoli cells
2009/2/23
An ultrastructural and morphometric study of the testes in 15-, 22-, 45-, and 90-day-old neonatally estrogenized rats was performed. At 45 days of age, the Sertoli cells appeared immature in estroge...
Dose and time relationships in the endocrine response of the irradiated adult rat testis
endocrine response irradiated adult rat testis
2009/2/23
The dose- and time-dependent responses for the interstitial and tubular compartments in irradiated adult rat testes are described. Leydig cell dysfunction, as indicated by increased serum LH (to a m...
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...
Localization of cellular retinol-binding protein and cellular retinoic acid-binding protein in the rat testis and epididymis
cellular retinol-binding protein cellular retinoic acid-binding protein rat testis
2009/2/20
The distribution of cellular retinol-binding protein (CRBP) and cellular retinoic acid-binding protein (CRABP) in rat testis and epididymis was examined by the peroxidase-antiperoxidase immunolocali...
Regional differences in luminal fluid polypeptides of the rat testis and epididymis revealed by two-dimensional gel electrophoresis
Regional differences luminal fluid polypeptides rat testis epididymis revealed two-dimensional gel electrophoresis
2009/2/20
Luminal fluid samples were collected by micropuncture of the seminiferous tubule, rete testis, and defined levels of the epididymal tubule. After removal of spermatozoa by centrifugation, the supernat...
Construction and preliminary characterization of a series of mouse and rat testis cDNA libraries
Spermatogenesis Sertoli cells peritubular cells gene
2009/2/18
We have constructed a series of 23 cDNA libraries from mouse and rat testicular cells. These include libraries made from whole, intact adult testes; seminiferous tubule cells from adult testes; co...
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...
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 ...