搜索结果: 46-60 共查到“医学 testosterone”相关记录146条 . 查询时间(0.101 秒)
Comparison of Prostatic Response to Pituitary Grafts in Castrate Rats Treated with Testosterone or Dihydrotestosterone
prostate prolactin testosterone dihydrotestosterone
2009/2/19
To understand further the effect of prolactin (PRL) on prostatic growth, the present study was undertaken to determine if the augmentation of testosterone (T)-stimulated growth by PRL is mediated ...
The Relationships Between Serum Testosterone and Prolactin Levels and Nocturnal Penile Tumescence（NPT）in Impotent Men
impotence serum testosterone serum prolactin nocturnal penile tumescence hyperprolactinemia
2009/2/19
Serum testosterone (T) and prolactin (PRL) levels, nocturnal penile tumescence (NPT), penile and brachial blood pressure, and bulbocavernosus reflex latency (BCR) were assessed in 172 impotent men r...
The Physiologic Effects of Testosterone in Hydrogenated Soybean Oil Vehicle as Compared to Free Testosterone, Testosterone Propionate, and Testosterone Enanthate in a Conventional Oil Vehicle
testosterone hydrogenated soybean oil conventional vehicle
2009/2/19
We have recently described a new technique that utilizes hydrogenated soybean oil (HSO) as the vehicle for the controlled and sustained release of testosterone (T) (Gerrity et al., 1981). The purpos...
Testosterone Pretreatment and the Response of Pituitary LH to Gonadotropin-Releasing Hormone（GnRH）in the Male Dog
GnRH LH-response testosterone dog
2009/2/19
To characterize the effects of testosterone (T) pretreatment on the response of pituitary LH secretion to exogenous gonadotropin-releasing hormone (GnRH), intact male dogs were injected subcutaneo...
Testis Vein Testosterone Falls in the Aging Rat：Refutation of“Dilution”Hypothesis
dilution hypothesis in aging testicular function ratio of testicular vein to peripheral serum testosterone
2009/2/19
A proposal that serum testosterone concentration declines during aging In the male laboratory rat because it is diluted in a larger body mass (and larger blood plasma volume) was reexamined. Five ag...
Evidence for Direct Transfer of 1,2-3H Testosterone From Testicular Veins to the Rete Testis in Rats
spermatic vein rete testis fluid
2009/2/19
To investigate the origin and route of entry of testosterone into the rat rete testis, samples were drawn from the rete, deep testicular veins, testicular lymph and systemic arteries during testic...
Validation of a Direct Radioimmunoassay for Testosterone in Unextracted Serum from Five Species: Application to Study of the Hypothalamic-Pituitary-Gonadal Axis in Males
direct radioimmunoassay serum testosterone luteinizing hormone releasing hormone immunoneutralization
2009/2/19
A method for the radioimmunoassay of serum testosterone that does not require extraction or chromatography is described. Utilization of a highly specific antiserum, tritiumlabeled ligand, and doub...
Effect of Estradiol on the Rat Prostate in the Presence and Absence of Testosterone and Pituitary
prostate rat estradiol testosterone pituitary prolactin
2009/2/19
In an attempt to elucidate the effect of estradiol on the rat prostate, four experiments were conducted. In experiment 1, rats were orchiectomized and were given subcutaneous implants of silastic ...
Nature of the Clearance of Exogenous Testosterone and Progesterone in Ejaculated Bovine Semen
progesterone testosterone blood semen ejaculated
2009/2/19
Plasma and semen concentrations of androgens and progestins were not influenced by repetitive ejaculation in bulls. Within 20 minutes after the injection of testosterone (100 mg Intravenously), plas...
Testosterone Regulation of Follicle-stimulating Hormone Secretion in the Male Dog
testosterone FSH polydimethylsiloxane
2009/2/18
Studies were carried out to determine the effect of various numbers of testosterone-filled polydimethylsiloxane (PDS)capsules on plasma concentrations of testosterone and FSH in acutely orchidectomi...
Effect of Anesthetics on Testosterone Production in Rats
halothane enflurane ether urethan pentobarbital ketamine gonadotropins blood flow
2009/2/18
Changes in testicular vein and peripheral testosterone concentrations in mature rats were monitored during anesthesia with six different agents. Samples taken 2-3 minutes after initial disturbance o...
Estradiol-induced Inhibition of Testosterone Production by Testicular Interstitial Cells Incubated In Vitro
testosterone interstitial cells estradiol testis steroidogenesis
2009/2/18
Testosterone production by testicular interstitial cells incubated in vitro in the presence of 10-8 to 10-6 M 17-estradiol (E2), 17 -estradiol-3-benzoate (E2B), or benzoic acid (B) was examined. Hig...
Relationship between rapid eye movement sleep and testosterone secretion in normal men
Luteinizing hormone follicle-stimulating hormone
2009/2/18
The relation between the pituitary-gonadal hormones' rhythm and sleep physiology in men is not fully elucidated. To examine whether the reproductive hormones are correlated with sleep architecture, ...
Serum dihydrotestosterone and testosterone concentrations in human immunodeficiency virus-infected men with and without weight loss
estosterone DHT AIDS wasting HIV-associated
2009/2/18
Weight loss is an important determinant of disease outcome in human immunodeficiency virus (HIV)-infected men. Others have suggested that a defect in dihydrotestosterone (DHT) generation contribut...
Estradiol and high-dose dihydrotestosterone treatment causes changes in cynomolgus monkey prostate volume and histology identical to those caused by testosterone alone
Male transrectal ultrasonography androgens estrogens
2009/2/18
To evaluate the effects of testosterone (T), dihydrotestosterone (DHT), and estradiol (E2) on the regulation of prostate growth and tissue composition, the following study was conducted in a nonhuma...