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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 ...
Steroid metabolism and morphologic features of the human testis
Steroid metabolism morphologic features human testis
2009/2/23
Serum FSH, LH, and testosterone were studied in 114 infertile men with poor sperm production. Testicular biopsies were taken and classified morphologically. In 90 specimens, the pattern of convers...
Sex steroid inhibition of LH induction of the LH receptor
estrogen testosterone luteinizing hormone receptor testis Leydig cell
2009/2/23
Testosterone and estrogen were tested as possible mediators of the prolactin-dependent LH induction of LH receptors in hypophysectomized adult male rats. Animals were injected s.c. with saline, pr...
Suppression of steroid receptor-chromatin interaction by inhibitors present in ammonium sulfate-fractionated rat testicular androgen receptor preparations
steroid receptor-chromatin interaction inhibitors present ammonium sulfate-fractionated rat
2009/2/23
Tritiated androgen receptor complex was partially purified by ammonium sulfate precipitation at 15 to 37% saturation from rat testicular or prostatic cytosols. A greater amount of prostatic tritiate...
Sex steroid-induced changes in collagen of the prostate and seminal vesicle of rats
testosterone propionate cniı yctrotestosterone estradiol prolactin collagen
2009/2/23
The effects of androgen alone or in combination with estrogen or prolactin on the collagen of the prostate and seminal vesicles were studied in prepubertal and adult rats. Castration decreased the c...
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...
Prolactin Stimulation of Testicular Steroid Biosynthesis in the Male Rat
prolactin LHRH 17-hydroxylase desensitization steroidogenesis LH receptor prolactin receptor
2009/2/19
The effect of prolactin on testicular steroidogenesis was studied in intact adult male rats and in animals treated for 12 days with the LHRH-agonist [D-Ala6, des-Gly-NH210]LHRH ethylamide (LHRH-agon...
Testicular and Adrenal Steroid Profiles During PRL Suppression by Lisuride in Men
lisuride testis hCG steroids prolactin
2009/2/18
Lisuride hydrogen maleate is known to reduce serum prolactin (PRL) in rodents and humans. The authors have examined the effects of short-term lisuride administration on testicular and adrenal func...
Principal cells of the vas deferens are involved in water transport and steroid synthesis in the adult rat
Principal cells vas deferens water transport steroid synthesis adult rat
2009/2/18
Principal cells show marked structural differences in the proximal, middle, and distal regions of the vas deferens, reflective of diverse functional activities. In the present study, we performed el...
Neuronal nitric oxide synthase in the canine prostate：aging, sex steroid, and pathology correlations
Testis imprinting BPH atrophy testosterone
2009/2/17
Nitric oxide synthase (NOS) is expressed in the prostate of various species, including humans. NOS catalyzes the production of nitric oxide (NO), which may function in prostatic smooth-muscle relaxa...
Differential methylation in steroid 5 alpha-reductase isozyme genes in epididymis, testis, and liver of the adult rat
Gene methylation gene expression androgens dihydrotestosterone eukaryotic adenine methylation
2009/2/17
DNA methylation has been largely involved in the regulation of tissue-specific gene expression. The aim of the study was to determine the methylation pattern of steroid 5 alpha-reductase genes 1 and 2...
The mRNAs for the steroid 5 alpha-reductase isozymes, types 1 and 2, are differentially regulated in the rat epididymis
Androgens development hormonal regulation male
2009/2/16
The enzyme steroid 5 alpha-reductase (EC 1.3.1.22) catalyzes the conversion of testosterone to its more potent form, dihydrotestosterone (DHT), in many androgen-sensitive target tissues. In the ep...