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Effect of adrenal steroids on testosterone and luteinizing hormone secretion in the ram
adrenal steroids testosterone luteinizing hormone secretion ram
2009/2/23
The effects of adrenal steroids on testosterone and LH secretion and changes in serum cortisol levels in response to treatments were studied in the ram. Acute administration of synthetic ACTH (10 mi...
The binding patterns of antisera to sex steroids and human gonadotropins on human and rhesus monkey spermatozoa
human spermatozoa monkey spermatozoa hormone binding sites immunofluorescence steroids
2009/2/20
The presence of different hormones on the surface of ejaculated spermatozoa was determined by immunofluorescence studies of the binding patterns of specific antisera to these hormones. There were st...
Endogenous Steroids in the Rat Seminiferous Tubules. Comparison of the Stages of the Epithelial Cycle Isolated by Transillumination-Assisted Microdissection
androgens seminiferous tubules rats stages of spermatogenesis transillumination
2009/2/19
A microdissection procedure is described that allows the isolation of segments of rat seminiferous tubules in different stages of the epithelial cycle. This procedure is based on spermatogenic sta...
Effects of Hemicastration or hCG-treatment on Steroids in Testicular Vein and Jugular Vein Blood of Stallions
stallion androgens estrogens testicular vein hemicastration hCG-treatment
2009/2/19
The relationships among testicular vein and jugular vein concentrations of androgens and estrogens were studied in anesthetized stallions. Blood was sampled from a vein on the surface of the testis ...
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...
Evidence for the regulation of prostatic oxytocin by gonadal steroids in the rat
Testosterone dihydrotestosterone 5a-reductase finasteride
2009/2/18
Oxytocin and its receptor are present in the mammalian prostate, and the peptide has been shown to increase prostatic growth, 5alpha-reductase activity, and contractility. This study was performed...
Contraceptive Steroids Influence the Hemostatic Activation State in Healthy Men
Cardiovascular risk gestagens hemostasis hormonal male contraception testosterone
2008/12/5
Hormonal contraception for men requires administration of testosterone and gestagens. The effects of a long-acting testosterone ester and 2 different progestins on hemostatic activation parameters w...