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Development of transmembrane signaling in the fetal rat Leydig cell
transmembrane signaling fetal rat Leydig cell
2009/2/23
Gonadotropin binding to the adult Leydig cell activates a GTP binding protein that interacts with adenylate cyclase to increase cAMP production within the cell. The increased production of cAMP stim...
Ultrastructural studies on the development of the blood-epididymis barrier in immature rats
Ultrastructural studies blood-epididymis barrier immature rats
2009/2/23
The development of the blood-epididymis barrier in immature rats (8, 11, 14, 18, and 21 days old) was examined with an electron microscope using lanthanum nitrate as an electron dense tracer. A grad...
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...
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
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...
Effect of Fatty Acids on Fertilization and Development of Mouse Embryos In Vitro
fertilization embryos fatty acids bovine serum albumin
2009/2/19
The interaction of protein and fatty acids on the fertilization and preimplantation development of mouse embryos in vitro was investigated. Normal fraction V and fatty-acid-free bovine serum albumin...
In Vitro Sperm Capacitation and In Vitro Fertilization with Normal Development in the Rabbit
sperm capacitation in vitro fertilization embryo culture embryo transfer spermatozoa oocytes rabbit
2009/2/19
The objective was to obtain in vitro sperm capacitation and fertilization to approximate the normal in vivo processes. Rabbit oocytes from follicles, ovarian surfaces, and oviducts were fertilized...
A Comparison of Blood Chemistry, Reproductive Hormones, and the Development of Antisperm Antibodies After Vasectomy in Men
vasectomy antibody response testosterone luteinizing hormone
2009/2/18
Serum chemistry parameters as well as levels of follicle-stimulating hormone (FSH), luteinizing hormone (LH), testosterone, and spermimmobilizing and sperm-agglutinating antibodies were measured pri...
II. Characterization and development of the regional- and cellular-specific abnormalities in the epididymis of mice with beta-hexosaminidase A deficiency
II. Characterization regional- and cellular-specific abnormalities epididymis mice with beta-hexosaminidase A deficiency
2009/2/18
Beta-hexosaminidase (Hex) is a lysosomal enzyme that exists as two isoenzymes: Hex A (subunit structure alphabeta) and Hex B (betabeta). Its presence in the testis and epididymis suggests importan...
FSH immunoneutralization acutely impairs spermatogonial development in normal adult rats
FSH immunoneutralization spermatogonial development adult rats
2009/2/18
Follicle-stimulating hormone (FSH) plays an important part in testicular development. Its role in the regulation of spermatogenesis in the adult, however, remains controversial. This study aimed t...
Changes in the number, proliferation rates, and bcl-2 protein immunoexpression of epithelial and periductal cells from rat epididymis during postnatal development
Basal cells cell proliferation
2009/2/18
To investigate 1) the correlation between the proliferative activity of epididymal epithelium plus myoid cells and the increase in the number of these cells and 2) the role of the basal epithelial c...
The development of male reproductive organ abnormalities after neonatal exposure to tamoxifen is genetically determined
Neonate mice strains testicular infarction epididymitis
2009/2/18
Responses of the male reproductive organs to neonatal exposures of tamoxifen (Tx) were examined in seven different strains of mice (A/J, AKR/J, BALB/cAnN, C3H/HeJ, C57BL/6J, DBA/ 2J, and FVB/N). Mal...
Stereological evaluation of mouse prostate development
Stereological evaluation mouse prostate development
2009/2/18
A stereological study of the development of the mouse prostate was undertaken between the second week of postnatal life and maturity. The aim was to quantify the progressive changes in the size and ...
Development of Sertoli cell binding competency in the peripubertal rat
Cell-cell junctions follicle-stimulating hormone
2009/2/18
The peripheral distribution of Sertoli cell F-actin, a cytoskeletal protein found in Sertoli cell ectoplasmic specializations, is associated with enhanced spermatid binding to the Sertoli cell and...
Androgen binding protein secretion and endocytosis by principal cells in the adult rat epididymis and during postnatal development
Androgen binding protein secretion endocytosis principal cells adult rat epididymis
2009/2/18
Androgen binding protein (ABP) has been shown to be secreted by Sertoli cells and to be actively taken up by the efferent ducts and proximal caput epididymidis and, yet, to be present at high concen...
Epididymal obstruction during development results in antisperm autoantibodies at puberty in rats
Sperm epididymis autoantigens autoantibodies
2009/2/17
An autoimmune response to sperm occurs after vasectomy, but there is little information on whether similar reactions occur after obstruction of the male reproductive tract at other points. Male Lewis ...