搜索结果: 76-90 共查到“性科学 rat”相关记录321条 . 查询时间(0.029 秒)
Effects of gossypol on rat Sertoli and Leydig cells in primary culture and established cell lines
rat Sertoli Leydig cells established cell lines
2009/2/19
In order to evaluate the direct effect of gossypol on testicular cells, we used primary cultures of rat Leydig and Sertoli cells. No alteration in Leydig cell survival, morphology, or testosterone...
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...
Tubular patency is the primary concern in the evaluation of procedures for epididymovasostomy. The epididymal lumen easily becomes occluded or obstructed, with the resulting recurrence of azoospermi...
Evidence for the presence of androgen receptors in purified rat Leydig cells
androgen receptors purified rat Leydig cells
2009/2/19
Leydig cells, purified on two sequential Percoll gradients to purities of 89 +/- 1%, were used to study the binding of 17-beta-hydroxy-17 alpha-methyl-estra-4,9,11-triene-3-one(3H-R1881). The accumu...
The male antifertility agents alpha chlorohydrin, 5-thio-D-glucose, and 6-chloro-6-deoxy-D-glucose interfere with sugar transport across the epithelium of the rat caput epididymidis
rat epididymis sugar transport antifertility
2009/2/19
The effects of the male antifertility agents alpha-chlorohydrin, 5-thio-D-glucose, and 6-chloro-6-deoxy-D-glucose on sugar transport (3H-3-O-methyl-D-glucose and 3H-2-deoxy-D-glucose) across the r...
The ability of the rat epididymis to concentrate spermatozoa. Responsiveness to aldosterone
aldosterone epididymal spermatozoa
2009/2/19
Experiments have been performed to determine if aldosterone is involved in the control of water reabsorption from the epididymal lumen in vivo. Micropuncture samples of lumen content were collected ...
Influence of estradiol on accessory reproductive organs in the castrated male rat. Effects of bromocriptine and flutamide
estradiol accessory reproductive organs castrated male rat
2009/2/19
Estradiol partially maintained the weights of the dorsolateral prostate and seminal vesicles in castrated adult male rats. One group of animals received subcutaneous injections of estradiol (0.01 ...
Effect of cryptorchidism and orchidopexy on inhibin secretion by rat Sertoli cells
cryptorchidism orchidopexy inhibin secretion rat Sertoli cells
2009/2/19
The present study explored the effects of experimental bilateral cryptorchidism (of 21-, 28-, and 35-days duration) and orchidopexy (14 and 42 days) in the adult rat on the secretion of inhibin by c...
Effect of cryptorchidism and orchidopexy on inhibin secretion by rat Sertoli cells
cryptorchidism orchidopexy inhibin secretion rat Sertoli cells
2009/2/19
The present study explored the effects of experimental bilateral cryptorchidism (of 21-, 28-, and 35-days duration) and orchidopexy (14 and 42 days) in the adult rat on the secretion of inhibin by c...
Sperm Penetration into Rat Ova Fertilized In Vitro
fertilization sperm penetration spermatozoon oocyte
2009/2/19
The scanning electron microscope was used to study the morphology of sperm entry into the zona-intact rat ova fertilized in vitro. It is the anteriormost tip of the sperm head, which first associate...
Control of Rat Testicular Prostaglandin Dehydrogenase, 13-Prostaglandin Reductase, and Total Prostaglandin Dehydrogenase Activities
rat testicular prostaglandin dehydrogenase hypophysectomy luteinizing hormone follicle stimulating hormone
2009/2/19
The effects of hypophysectomy and various hormonal treatments on rat testicular prostaglandin dehydrogenase (PGDH), 13-PG reductase, and total PGDH activities were studied in vivo and in vitro. Al...
Comparative C19-Radiosteroid Metabolism in Primary Monolayer Cultures of Epithelial Cells and Fibroblasts from Rat Ventral Prostate, Canine Prostate, and Rat Lung
rat ventral prostate canine prostate epithelial cells fibroblasts primary cell culture testosterone 5-reductase
2009/2/19
Stromal-epithelial cell interactions may be important for the regulation of normal and abnormal prostatic growth. While androgen transformation by rat ventral prostate and canine prostate has been i...
Comparative C19-Radiosteroid Metabolism in Primary Monolayer Cultures of Epithelial Cells and Fibroblasts from Rat Ventral Prostate, Canine Prostate, and Rat Lung
rat ventral prostate canine prostate epithelial cells fibroblasts primary cell culture testosterone 5-reductase
2009/2/19
Stromal-epithelial cell interactions may be important for the regulation of normal and abnormal prostatic growth. While androgen transformation by rat ventral prostate and canine prostate has been i...
Effect of Castration and Androgen Treatment on Sex-Linked Reactivity of Rat Aorta to a Thromboxane-Mimic
castration androgen-treatment vascular reactivity thromboxane-mimic
2009/2/19
In order to examine the possible role of androgens in the isotonic response of the isolated rat aorta, a highly active mimic of thromboxane was employed. The maximum response to this TXA2-mimic U4...
Impact of Pulsatile Administration of Gonadotropin-Releasing Hormone on the Pituitary-Testicular Axis of the Immature Rat
pulsatile gonadotropin-releasing hormone administration luteinizing hormone androgens
2009/2/19
Effects of administering low doses of GnRH (30 ng/100 g body weight) at various frequencies on the pituitary-testicular axis were investigated. During a 6-hour treatment period, GnRH was administe...