搜索结果: 1-15 共查到“性科学 in-vivo”相关记录24条 . 查询时间(0.023 秒)
The selective removal of pachytene spermatocytes using methoxy acetic acid as an approach to the study in vivo of paracrine interactions in the testis
selective removal pachytene spermatocytes methoxy acetic acid paracrine interactions
2009/2/23
Testicular weight and morphology, serum gonadotropins, intratesticular levels of testosterone and ABP levels in testicular interstitial fluid were studied in adult rats at intervals of 1 to 70 days ...
Binding and internalization in vivo of [125I]hCG in Leydig cells of the rat
Binding and internalization [125I]hCG Leydig cells rat
2009/2/23
The present study was performed to demonstrate the binding, mode of uptake, pathway and fate of iodinated human chorionic gonadotropin ([125I]hCG) by Leydig cells in vivo using electron microscope...
Receptor-mediated endocytosis of alpha 2-macroglobulin by principal cells in the proximal caput epididymidis in vivo
alpha 2-macroglobulin principal cells proximal caput epididymidis
2009/2/20
Micropuncture techniques were used to study receptor-mediated endocytosis of alpha 2-macroglobulin bound to colloidal gold (alpha 2M-gold) by principal cells in the proximal caput epididymidis of co...
Effect of gossypol acetate on guinea pig epididymal spermatozoa in vivo and their susceptibility to capacitation in vitro
gossypol sperm motility sperm maturation cytoplasmic droplet capacitation acrosome reaction
2009/2/20
To determine the effects of gossypol acetate on guinea pig epididymal and vas deferens sperm maturity and in vivo susceptibility to in vitro capacitation and the acrosome reaction, we examined sperm...
Localization of tubulin and microtubules of in vivo fertilized rabbit oocytes
fertilization microtubules acrosome acrosin
2009/2/20
The presence of tubulin throughout what appears to be sperm penetration tunnels of in vivo fertilized rabbit oocytes was demonstrated by both immunofluorescence and transmission electron microscopy,...
The effect of estrogen administration in vivo on the elemental composition of the intraluminal fluids of the seminiferous tubules, rete testis, and epididymis of the rat
epididymis spermatozoa estrogen elements
2009/2/19
The maturation of spermatozoa in the epididymis is dependent upon the presence of androgens. This study examined the effects of androgen suppression by estradiol valerate on the elemental compositio...
Virilizing Testicular Tumor：In Vivo Studies of Steroid Secretion
in vivo studies of steroid secretion virilizing testicular tumor testicular tumor steroid secretion
2009/2/19
Findings in a six-year-old boy with a virilizing tumor of the left testis are presented. His bone age was 14 years. Serum testosterone (5.9 ng/ml), urinary 17-ketosteroid (29 mg/24 hr), and pregnane...
In Vivo and In Vitro Investigation of the Extrapituitary Antireproductive Effects of a Potent LHRH Agonist in Immature and Adult Male Rats
LHRH agonist extrapituitary reproductive effects age-dependency hypophysectomy
2009/2/19
Co-incubation with a potent LHRH agonist, D-Ala6-Des-Gly10-Pro9-NHEt-LHRH (Wy-18,481), did not affect testosterone or progesterone production by adult intact rat testes in vitro. Prior administrat...
Obstruction of the vas deferens alters protein secretion by the rat caput epididymidal epithelium in vivo
protein secretion rat caput epididymidal epithelium
2009/2/18
Obstruction of epididymal lumen fluid flow alters the intraluminal environment and potentially changes epididymal epithelial cell function when those functions are dependent on intraluminal regulato...
Expression of 140-kDa neural cell adhesion molecule in developing testes in vivo and in long-term Sertoli cell-gonocyte cocultures
Testicular development cell adhesion NCAM immunostaining
2009/2/17
The basis for cell-cell adhesion in the seminiferous epithelium of the developing testis is doubtless critical in supporting events that are essential for the onset and maintenance of normal sperm...
Leydig cell apoptosis in response to ethane dimethanesulphonate after both in vivo and in vitro treatment
Testis cell culture methylprednisolone glucocorticoid
2009/2/17
The biological effects of ethane dimethanesulphonate (EDS) are unique since cytotoxicity in the adult rat is almost exclusively confined to the Leydig cells. For this reason, EDS has been used exten...
Detection of germ cell-derived proteins in testicular interstitial fluid: potential for monitoring spermatogenesis in vivo
Seminiferous tubule-secreted proteins phosphatidylethanolamine binding protein ARP-2 spermatid
2009/2/16
The aim of the present study was to assess whether proteins secreted by the seminiferous tubules (ST) can be detected in testicular interstitial fluid (IF) and testicular (TV), spermatic (SV), and p...
Prenatal in vivo bulbourethral gland development is not affected by prostaglandin E2 inhibition
Dimethyl sulfoxide indomethacln masculinization morphogenesis
2009/2/13
Investigation of bulbourethral gland (BUG) development is useful to study genitourinary (GU) tract growth and differentiation. Understanding GU tract growth and differentiation is relevant to testin...
In vivo model for chronic direct intratesticular drug administration
Male infertility testicular toxicity miniosmotic pumps
2009/2/12
The efficacy and toxicity of a new method for chronic direct intratesticular drug infusion were assessed in a rat model. To this end, luteinizing hormone (LH) or buffer was infused via miniosmotic...
Dibromoacetic acid, a prevalent by-product of drinking water disinfection, compromises the synthesis of specific seminiferous tubule proteins following both in vivo and in vitro exposures
Disinfection by-products spermatogenesis proteomics
2008/12/29
Dibromoacetic acid (DBA) is a by-product of drinking water disinfection that alters spermatogenesis in adult male rats. To identify a mechanism by which DBA alters spermatogenesis, seminiferous tubu...