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Dose and time relationships in the endocrine response of the irradiated adult rat testis
endocrine response irradiated adult rat testis
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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...
Histopathology of prepubertal rat testes subjected to various durations of spermatic cord torsion
spermatic cord torsion rat
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2009/2/23
Sixty prepubertal rats were subjected to unilateral spermatic cord torsion for a duration of 0, 1, 3, 5, 9 or 12 hours. At the end of this period, the ipsilateral testes either were removed for imme...
The effect of delta 9-tetrahydrocannabinol in utero exposure on rat offspring fertility and ventral prostate gland morphology
marihuana testes ventral prostate gland testosterone
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2009/2/23
Male rats exposed in utero to delta 9-tetrahydrocannabinol (delta 9-THC) had lower levels of testosterone (T) and luteinizing hormone (LH) prior to puberty (P less than 0.01). At puberty, the levels...
Androgens in various fluid compartments of the rat testis and epididymis after hypophysectomy and gonadotropin supplementation
androgens testis epididymis hypophysectomy rat
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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...
Differential release of polyamines by cultured rat Sertoli cells
Differential release polyamines cultured rat Sertoli cells
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2009/2/23
Cellular and media concentrations of polyamines in Sertoli cell cultures were determined by fluorescent spectroscopy of dansylated compounds after separation by high-performance liquid chromatograph...
In vitro differentiation of rat seminiferous tubular segments from defined stages of the epithelial cycle morphologic and immunolocalization analysis
rat seminiferous tubular segments defined stages epithelial cycle morphologic immunolocalization analysis
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2009/2/23
Rat seminiferous tubule segments have been cultured in chemically defined medium (F12/DMEM 1:1) without added hormones or growth factors. The segments (1-2 mm) were isolated from defined stages of t...
Flow cytometric DNA analysis of defined stages of rat seminiferous epithelial cycle during in vitro differentiation
Flow cytometric DNA analysis rat seminiferous epithelial cycle
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2009/2/23
The stages of the rat seminiferous epithelial cycle have been isolated for flow cytometric analysis of DNA and for culture, using transillumination-assisted microdissection. Precise stages have been...
Immobilin, the highly viscoelastic glycoprotein isolated from rat cauda epididymal fluid, exhibits all of the key biochemical characteristics of a mucin: 1) it has a very high molecular weight (will...
Selective luminal absorption of L-carnitine from the proximal regions of the rat epididymis. Possible relationships to development of sperm motility
L-carnitine rat epididymis sperm motility microperfusion
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2009/2/23
The absorption of L-carnitine from the duct of the proximal regions of the rat epididymis was investigated using a stopped-flow, split-droplet microperfusion technique. L-carnitine was absorbed from...
Culture of ciliated and nonciliated cells from rat ductuli efferentes
ciliated and nonciliated cells rat ductuli efferentes
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2009/2/23
The isolation and culture of ciliated and nonciliated cells from rat ductuli efferentes is described. Fragments of epithelium obtained after two collagenase digestions attached to plastic and to ext...
A comparative analysis of cAMP-dependent protein kinase regulatory subunits in sea urchin and rat spermatozoa
spermatozoa azido photoprobes protein kinase nucleotides epididymis
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2009/2/23
8-Azido cAMP photoaffinity labeling of cAMP-dependent protein kinase regulatory subunits (R1 = 49 K;R2 = 55K) was done on spermatozoa from species lacking, and species containing an epididymis. Sper...
The origin of some acid hydrolases of the fluid of the rat cauda epididymidis
acid hydrolases rat cauda epididymidis
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2009/2/23
The activity of N-acetyl-beta-D-glucosaminidase (NAG, 60.1 units/mg protein) and of acid phosphatase (57.7 units/mg protein) in fluid from the cauda epididymidis formed without any contribution from...
Intracellular pathways of endocytosed tracers in Leydig cells of the rat
Intracellular pathways endocytosed tracers Leydig cells rat
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2009/2/23
The endocytic activity of Leydig cells was examined by electron microscopy following the injection, into the interstitial space, of tracers used to examine fluid-phase endocytosis, ie, native ferrit...
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
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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...
Alterations of testicular function induced by hyperprolactinemia in the rat
testicular function hyperprolactinemia rat
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2009/2/20
The effects of hyperprolactinemia on testicular structure and pituitary-gonadal function were investigated in male rats. Hyperprolactinemia was induced in the Wistar-Furth rat by implantation of t...