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Stimulation of the proliferation and differentiation of Leydig cell precursors after the destruction of existing Leydig cells with ethane dimethyl sulphonate（EDS）can take place in the absence of LH
proliferation differentiation Leydig cell precursors
2009/2/23
In hypophysectomized rats, 2 days after the administration of the cytotoxic drug ethane dimethyl sulphonate (EDS), the proliferative activity of Leydig cell precursors increased six-fold. Thus, fact...
Mechanism of LHRH-stimulated steroidogenesis in rat Leydig cells：lipoxygenase products of arachidonic acid may not be involved
LHRH-stimulated steroidogenesis rat Leydig cells lipoxygenase products arachidonic acid
2009/2/23
Luteinizing hormone releasing hormone agonist, [(imBzl)-DHis6,Pro9,NEt]-LHRH (LHRH-A), caused a two to threefold increase in in vitro testosterone (T) secretion by rat Leydig cells. This LHRH-A-indu...
Luteinizing hormone secretion by male rat pituitary cells perifused in vitro：effect of experimental left varicocele and orchiectomy
Luteinizing hormone secretion male rat pituitary cells
2009/2/23
It has been shown previously that experimental left varicocele in the rat, results in a bilateral decrease in intratesticular testosterone. In the present work, pituitary responsiveness to GnRH as a...
Mast cells in the testis, epididymis and accessory glands of the rat：effects of neonatal steroid treatment
Mast cells rat neonatal steroid treatment
2009/2/23
Mast cells in the testis of control adult rats were found almost exclusively around subcapsular blood vessels. Discrete mast cells were distributed throughout the stroma of the epididymis and sex ...
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...
Secretion of plasminogen activator in response to follicle-stimulating hormone in culture medium of human testicular cells from biopsy specimens
plasminogen activator follicle-stimulating hormone culture medium human testicular cells
2009/2/23
Testicular cells from human biopsy specimens were cultured and plasminogen activator secreted into the medium was investigated. Follicle stimulating hormone stimulated plasminogen activator secret...
Estradiol and plasminogen activator secretion by cultured rat Sertoli cells in response to melanocyte-stimulating hormones
Estradiol and plasminogen activator secretion cultured rat Sertoli cells melanocyte-stimulating hormones
2009/2/23
Pro-opiomelanocortin-derived peptides, alpha-MSH and beta-endorphin, are synthesized and secreted by Leydig cells, and are believed to have paracrine effects on Sertoli cells in the testis. Peptid...
Incorporation of gossypol and formation of its protein conjugates in mouse transformed Sertoli（TM4）cells
protein conjugates mouse transformed Sertoli（TM4）cells
2009/2/23
Mitochondria of both mouse transformed Sertoli (TM4) cells and primary-cultured rat and mouse Sertoli cells were shown to be preferentially affected by gossypol (Tanphaichitr et al, 1984). To invest...
It has been reported that Leydig cells have Fc receptors, which traditionally have been considered markers specific for macrophages and polymorphonuclear leukocytes. The purpose of this investigat...
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...
The regulation of the proliferation and differentiation of rat Leydig cell precursor cells after EDS administration or daily HCG treatment
Leydig cell Leydig cell precursor LH hCG EDS proliferation
2009/2/23
The proliferation and differentiation of possible Leydig cell precursors in adult rats were studied after destruction of the existing Leydig cells with EDS or after daily treatment with hCG. After 2...
Origin and fate of autophagosomes in Leydig cells of normal adult rats
Origin fate autophagosomes Leydig cells normal adult rats
2009/2/23
Autophagosomes were observed frequently in electron microscope photographs of Leydig cells from normal adult rat testis. Their formation, evolution and fate were analyzed morphologically in preparat...
Differential effects of（+）and（-）gossypol enantiomers on mitochondrial function and proliferation of cultured TM4 cells
Gossypol isomer TM4 cells mitochondria
2009/2/23
The in vitro effects of (+) and (-)gossypol enantiomers on the mitochondrial functions of mouse transformed Sertoli, TM4 cells were investigated by monitoring mitochondrial rhodamine 123 accumulat...
Localization of the human prostatic secretory protein PSP94 and its mRNA in the epithelial cells of the prostate
man prostate protein mRNA epithelium secretion
2009/2/23
The histologic distribution of a prostatic secretory protein of 94 amino acids (PSP94) and its mRNA were examined simultaneously by conventional immunohistochemistry and in situ hybridization histoc...
Effect of germ cells on vectorial secretion of androgen binding protein and transferrin by immature rat Sertoli cells in vitro
germ cells vectorial secretion androgen binding protein transferrin immature rat Sertoli cells
2009/2/23
The influence of germ cells (greater than 85% pachytene spermatocytes) on vectorial secretion of androgen binding protein (ABP) and transferrin by immature rat Sertoli cells was investigated using t...