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Human reproductive tissues contain thyrotropin releasing hormone（TRH）and TRH-homologous peptides
thyrotropin releasing hormone human prostate seminal vesicles testis epididymis
2009/2/20
Thyrotropin releasing hormone (TRH) immunoreactive peptides occur in high concentration within rat ventral prostate and human semen. To extend these observations to human reproductive organs, tissue...
Human semen contains thyrotropin releasing hormone（TRH）, a TRH-homologous peptide, and TRH-binding substances
semen TRH vasectomy exclusion ion exchange high pressure chromatography
2009/2/20
High levels of thyrotropin releasing hormone (TRH) and TRH-homologous peptide, with the general structure pGlu=X-Pro-NH2 where X is either Histidine (His) or a neutral amino acid residue, have been ...
Clinical studies in an adult male patient with “isolated follicle stimulating hormone （FSH）deficiency”
isolated FSH deficiency gonadotropin deficiency hypogonadism infertility FSH deficiency
2009/2/20
Previous reports concerning isolated follicle stimulating hormone (FSH) deficiency and its possible pathogenesis have been conflicting. Both "normal" and "abnormal" FSH response to luteinizing hormone...
The effect of exogenous follicle stimulating hormone treatment on anterior pituitary and testicular function in the prepubertal bull
follicle stimulating hormone luteinizing hormone testosterone prepubertal bull
2009/2/20
The effect of exogenous follicle stimulating hormone (FSH) on testicular function was studied in twenty 4-month-old Holstein bulls during two seasons (ten in late winter and ten in summer). Five mg ...
Regulation of testicular ornithine decarboxylase in vitro. Effect of age, follicle-stimulating hormone, and luteinizing hormone
rat testis omithine decarboxylase aging
2009/2/19
We have examined hormonal regulation of ornithine decarboxylase (ODC) activity in decapsulated rat testis, isolated testicular interstitial cells, and purified Leydig cells under defined conditions ...
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...
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...
Follicle-stimulating Hormone Receptor Binding Inhibitors in Human Seminal Plasma
FSH binding inhibition seminal plasma
2009/2/19
Human seminal plasma, freed of spermatozoa by centrifugation, inhibited binding of iodine-125 (125I)-hFSH to receptors in calf testes. Binding inhibition (BI) was seen in seminal plasma from intact ...
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...
Influence of Testicular Steroids on Thyrotropin Releasing Hormone-induced Prolactin Release in Mature Rams
testicular steroids prolactin prolactin secretion
2009/2/18
Prolactin (PRL) concentrations were measured in serum of intact rams, castrate rams, and steroid-treated castrate rams to determine whether testicular steroids influence PRL secretion in this sp...
Reproductive aging in the Brown Norway rat is characterized by accelerated germ cell apoptosis and is not altered by luteinizing hormone replacement
Brown Norway rat accelerated germ cell apoptosis luteinizing hormone replacement
2009/2/18
Reproductive aging in the male Brown Norway (BN) rat is characterized by decreased Leydig cell steroidogenesis associated with seminiferous tubule dysfunction. This could be a result of a combination ...
Follicle-stimulating hormone and testosterone stimulation of immature and mature Sertoli cells in vitro：inhibin and N-cadherin levels and round spermatid binding
Follicle-stimulating hormone testosterone stimulation immature mature Sertoli cells
2009/2/18
The in vitro response of Sertoli cells isolated from adult rat testes to testosterone (T) and follicle-stimulating hormone (FSH) treatment was investigated. Sertoli cells from >70-day-old Sprague-...
Suppression of growth hormone does not affect ongoing spermatogenesis in rats
Suppression of growth hormone ongoing spermatogenesis rats
2009/2/18
Recent evidence suggests that growth hormone (GH) may enhance physiologic processes, such as spermatogenesis, in addition to causing classical anabolic effects. We have previously shown that testost...
Follicle-stimulating hormone is required for the initial phase of spermatogenic restoration in adult rats following gonadotropin suppression
Testosterone germ cell spermatogonia stereology
2009/2/18
The role of follicle-stimulating hormone (FSH) in adult rat spermatogenesis is unclear. Although exogenous testosterone (T) restores spermatogenesis following gonadotropin-releasing hormone (GnRH)...
Does age-associated reduced Leydig cell testosterone production in Brown Norway rats result from under-stimulation by luteinizing hormone?
Aging testis steroids rat
2009/2/18
Previous studies have shown that reductions in Leydig cell testosterone production occur with aging in the Brown Norway rat. The recent observation that changes in luteinizing hormone (LH) pulse i...