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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...
Fetal irradiation increases androgen production by dispersed leydig cells of the rat
seminiferous tubule damage fetal irradiation
2009/2/20
Damage to the seminiferous epithelium of the rat has been shown to decrease the concentration of serum testosterone. In these animals, compared to controls, the structure of the Leydig cells sugge...
Squash preparation studies of germ cells in human fetal testes
testis preleptotene germ cells chromosomes
2009/2/20
Testes from human fetuses 21 to 41 weeks of gestation were investigated using a modified squash technique. At all of the gestational ages examined, 90 to 95% of the germ cells were in interphase. Pr...
Morphometric and immunocytochemical study of the fetal, infant, and adult human vas deferens
Epithelium testicular developmental phases
2009/2/17
The human vas deferens (VD) is often considered simply as a conduit to transfer mature sperm from the epididymis to the ejaculatory duct. The cells that make up the epithelium of the VD, however, ex...
Cloning and partial sequence of the rabbit androgen receptor：expression in fetal urogenital tissues
Development mesonephros androgen receptor urogenital sinus rabbit prostate
2009/2/13
Genetic studies indicate that the actions of testosterone and dihydrotestosterone are mediated by a single androgen receptor (AR). The basis for the differential effects of these hormones during d...
Androgen-induced prevention of the outgrowth of cranial gonadal suspensory ligaments in fetal rats
rat testis descent maldescent cryptorchidism
2009/2/11
Normal and disturbed testicular descent is frequently approached exclusively through a consideration of the caudal testicular suspensory apparatus. This is surprising, because embryonal gonads dev...