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The effects of sildenafil ciltrate on the lateral geniculate body of adult Wistar rats (Rattus norvegicus)- A histological study
Sildenafil citrate lateral geniculate body decreased cellular population cellular hypertrophy vacuolations Wistar rats
2015/7/15
The histological effect of oral administration of sildenafil citrate (Viagra), commonly used as an aphrodisiac and for the treatment of erectile dysfunction on one of the visual relay centres namely t...
Transplantation of newborn rat testis under the kidney capsule of adult host as a model to study the structure and function of Leydig cells
newborn rat testis kidney capsule adult host Leydig cells
2009/2/23
Newborn rat testis was transplanted under the kidney capsule of adult castrated and uncastrated male rats to develop and characterize a model system for studies on Leydig cell development. Two weeks...
The pattern of LH release in the adult ram influences the testicular steroidogenic response to individual LH pulses and is regulated by testosterone negative feedback
LH release adult ram influences testicular steroidogenic individual LH pulses
2009/2/23
Two experiments were conducted with adult intact rams (approximately 58 kg in body weight) in the nonbreeding season to investigate interrelationships between LH and testosterone secretion. In Exp...
Origin and fate of autophagosomes in Leydig cells of normal adult rats
Origin fate autophagosomes Leydig cells normal adult rats
2009/2/23
Autophagosomes were observed frequently in electron microscope photographs of Leydig cells from normal adult rat testis. Their formation, evolution and fate were analyzed morphologically in preparat...
Pituitary-gonadal function in adult male rats subjected to chronic water restriction
water restriction protein-calorie deficit circadian rhythms FSH LH testosterone acute stress
2009/2/23
The effect of water restriction on the pituitary-gonadal axis has been studied in adult male rats. Water restriction did not modify FSH, LH and testosterone levels. However, both LH and testosterone...
Sertoli cell junctional complexes in gossypol-treated neonatal and adult guinea pigs
Sertoli cell gossypol-treated neonatal adult guinea pigs
2009/2/23
The effect of gossypol, an experimental male contraceptive agent, on the development and maintenance of the blood-testis barrier was determined by feeding gossypol daily to prepubertal and adult gui...
Increased plasma and pituitary prolactin concentrations in adult male rats with selective elevation of FSH levels may be explained by reduced testosterone and increased estradiol production
Increased plasma pituitary prolactin concentrations adult male rats
2009/2/23
The roles of testosterone and estradiol in regulating prolactin concentrations were studied in acutely castrated adult male rats receiving subcutaneous Silastic implants of the sex steroids. Testost...
Dose and time relationships in the endocrine response of the irradiated adult rat testis
endocrine response irradiated adult rat testis
2009/2/23
The dose- and time-dependent responses for the interstitial and tubular compartments in irradiated adult rat testes are described. Leydig cell dysfunction, as indicated by increased serum LH (to a m...
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...
Recovery of gonadal functions in the adult male rat following cessation of five-month daily treatment with an LHRH agonist
LHRH agonist testicular steroidogenesis ventral prostate seminal vesicles spermatogenesis
2009/2/20
This study describes the recovery of various parameters of the pituitary-gonadal axis following five months of daily treatment of adult male rats with a potent LHRH (luteinizing hormone-releasing ...
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...
Structural features of cultured epithelial cells from the adult rat epididymis
epididymis epithelium primary culture
2009/2/20
Epithelial cells isolated from the caput epididymidis of adult rats were placed in primary culture and examined daily for ten days for changes in external anatomy, reorganization of cytoskeletal com...
Modification of Sertoli Cell Responsiveness to FSH by Cryptorchidism and Hypophysectomy in Immature and Adult Rats
rat cryptorchidy hypophysectomy cAMP Sertoli cell
2009/2/19
Cryptorchid or hypophysectomized rats were used as models to examine the possible relationships between germ cell development and gonadotropins in the agerelated decline in the responsiveness of t...
Abnormalities of the Hypothalamic—Pituitary—Leydig Cell Axis in Young Adult Rats with Vitamin A Deficiency
vitamin A deficiency (VAD) hypogonadism testosterone Leydig cell hypothalamus
2009/2/19
The hypothalamic concentration of gonadotrophin releasing hormone (GnRH), the in vivo pituitary responses to GnRH, and the in vivo Leydig cell responses to bovine luteinizing hormone (LH) and to end...
Retained Undescended Testis in a 51-Year-old“Anorchic”Man: The Implications of Endocrine Evaluation in the Adult Male With Impalpable Testes
Retained Undescended Testis 51-Year-old "Anorchic" Man Implications Endocrine Evaluation
2009/2/19
A 51-year-old man with previously diagnosed bilateral anorchia was shown by endocrine investigation of his hypophyseal-gonadal axis to have functioning testicular tissue. The implications of endocri...