搜索结果: 1-15 共查到“性科学 estrogen”相关记录20条 . 查询时间(0.041 秒)
Effects of neonatal estrogen administration on rat testis development with particular reference to Sertoli cells
neonatal estrogen administration rat testis development Sertoli cells
2009/2/23
An ultrastructural and morphometric study of the testes in 15-, 22-, 45-, and 90-day-old neonatally estrogenized rats was performed. At 45 days of age, the Sertoli cells appeared immature in estroge...
Impaired estrogen production by Leydig cells of the naturally retained testis in unilaterally cryptorchid boars and stallions
testis cryptorchid boar stallion estrogens
2009/2/23
Estrogen production in vitro was compared for Leydig cells from cryptorchid and scrotal testes in boars and stallions. Animals with natural and experimental cryptorchidism were used. Purified Leydig...
Evidence that estrogen regulation of testosterone secretion in adult rams is mediated by both indirect（gonadotropin dependent）and direct（gonadotropin independent）means
estrogen regulation testosterone secretion adult rams
2009/2/23
Involvement of endogenous estrogen in the regulation of gonadotropin and testosterone secretion was investigated in adult rams. Groups of four rams were either passively immunized against estradio...
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...
Estrogens and cytosolic estrogen receptors in aged male rats
Estrogens cytosolic estrogen receptors aged male rats
2009/2/19
To determine whether estrogens may play a role in the decline in Leydig cell function in aged rats, plasma levels of testosterone, estradiol, and estrone; intratesticular concentrations of testoster...
Androgen and Estrogen Receptors in the Canine Prostate
androgen receptor estrogen receptor canine prostate benign prostatic hypertrophy
2009/2/18
Characterization of cytosol and 0.6 M KCl-nuclear androgen and estrogen receptors in the canine prostate is described, including methods for assay of these molecules in tissue samples from intact, a...
Hormonal regulation of inhibin B secretion by immature rat sertoli cells in vitro：possible use as a bioassay for estrogen detection
Male reproduction estrogens
2009/2/18
The influences of follicle-stimulating hormone (FSH), gonadal steroids, and culture time were studied in relation to inhibin B production by Sertoli cells of immature rats cultured in vitro. Serto...
Estrogen receptor（alpha and beta）expression in the excurrent ducts of the adult male rat reproductive tract
Efferent ductules immunohistochemistry
2009/2/17
The understanding of estrogen's function in the male reproductive tract is limited, and estrogen receptor (ER) localization in the reproductive tract of the adult male rat has not been described. ...
Estrogen receptors are present in the epididymis of the rooster
Estrogen receptors epididymis rooster
2009/2/17
Our recent discovery that testicular germ cells and epididymal sperm contain active P450 aromatase suggests that the reproductive tract may be a target for estrogen. Therefore, the objective of th...
Morphometric study of the gubernaculum in male estrogen receptor mutant mice
ERKO estrogen estrogen receptor cremaster processus vaginalis testis gubemaculum
2009/2/16
To determine role of estrogen receptors in testicular descent, a morphometric study of the testis and structures derived from the gubernaculum was made in sexually mature male mice having an estro...
Modulation of androgen receptor transcriptional activity by the estrogen receptor
Androgen receptor estrogen receptor modulation transcription 016 cells GC cells
2009/2/12
Estrogen/androgen receptor interactions in naturally occurring physiological systems and the effect of their respective steroid hormones on transcriptional activity remain undefined. In an attempt...
Estrogen receptor messenger RNA expression in human benign prostatic hyperplasia：detection, localization, and modulation with a long-acting gonadotropin-releasing hormone agonist
Estrogen receptor messenger RNA expression human benign prostatic hyperplasia detection localization
2009/2/12
We have analyzed human benign prostatic hyperplastic (BPH) tissue derived from eight radical prostatectomy specimens from patients with prostate cancer for the expression of the estrogen receptor ...
Human osteoblast-like cells contain specific, saturable, high-affinity glucocorticoid, androgen, estrogen, and 1 alpha,25-dihydroxycholecalciferol receptors
Human osteoblast-like cells glucocorticoid receptors androgen receptor estrogen receptor
2009/2/12
Glucocorticoids, androgens, estrogens and 1 alpha,25-dihydroxycholecalciferol (1 alpha,25-(OH)2D3) exert a variety of effects on bone homeostasis. We have measured the receptors for these hormones...
Immortalized testis cell lines from estrogen receptor（ER）alpha knock-out and wild-type mice expressing functional ERalpha or ERbeta
Immortalization HPV E6/E7 in vitro models
2008/12/29
The surprising findings that male mice lacking the estrogen receptor (ER) alpha (alphaERKO) have atrophic testis and are infertile proved that ERalpha is involved in normal testicular function. To o...
Effects of long-term administration of androgens and estrogen on rhesus monkey prostate：possible induction of benign prostatic hyperplasia
long-term administration androgens estrogen rhesus monkey prostate
2008/12/25
Rhesus monkeys were used to investigate the role of androgenic steroids and estradiol in the induction of hyperplastic changes in stromal and glandular prostate tissues. Adult male rhesus monkeys ...