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Pituitary response to LHRH during chronic renal insufficiency in the male rat
Pituitary LHRH chronic renal insufficiency male rat
2009/2/23
Chronic renal insufficiency was induced in young adult male rats by a 2-step 5/6 nephrectomy. Four weeks after surgery the rats were anesthetized with ketamine and injected with saline or 1, 5, 10...
Chronic ethanol ingestion during puberty alters the transient increase in testicular 5 alpha-reductase in the Swiss-Webster mouse
transient increase testicular 5 alpha-reductase Swiss-Webster mouse
2009/2/23
Previous experiments with inbred mice showed that chronic ethanol treatment delays male pubertal development. An initial event in sexual maturation in the rat is a transient increase in 5 alpha-re...
The correlation between the gossypol contents in blood plasma, rete testis fluid, and cauda epididymal fluid following chronic treatment with gossypol in rats
gossypol contents blood plasma rete testis fluid cauda epididymal fluid chronic treatment with gossypol in rats
2009/2/23
Concentrations of gossypol in blood plasma, rete testis fluid, and fluid from the caudia epididymidis were measured simultaneously by high performance liquid chromatography in rats treated with goss...
Effects of chronic sulpiride-induced hyperprolactinemia on plasma testosterone and its responses to hCG in normal men
Effects of chronic sulpiride-induced hyperprolactinemia plasma testosterone hCG normal men
2009/2/23
To elucidate the effects of sulpiride-induced (300 mg daily) long-term (64 days) hyperprolactinemia on basal and hCG-stimulated plasma testosterone (T), hCG was given to five normal men five times...
Chronic sinopulmonary disease in Chinese patients with obstructive azoospermia
Chronic sinopulmonary disease Chinese patients obstructive azoospermia
2009/2/23
The prevalence of chronic infections of the nasal sinuses and the lung (chronic sinopulmonary disease) was investigated in 33 Chinese patients with obstructive azoospermia who were compared with 32 pa...
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...
Growth and reproductive adaptation in male rats with chronic protein deficiency
protein deficiency undernutrition testicular
2009/2/20
In previous studies, male rats fed a low-protein diet beginning at weaning were found to have impaired sexual development through age 11 weeks when compared to food-restricted, weight-matched contro...
The Effect of Acute and Chronic Ethanol Administration on Prolactin Secretion in Male Rats
ethanol prolactin glutamate decarboxylase
2009/2/19
The effect of acute and chronic administration of ethanol on prolactin secretion in male rats was investigated under basal conditions and after the administration of sulpiride. The effect of ethan...
Effects of Chronic, High-dose LHRH-Agonist Treatment on Pituitary and Testicular Functions in Rhesus Monkeys
Chronic High-dose LHRH-Agonist Treatment Pituitary Testicular Functions Rhesus Monkeys
2009/2/18
The effects of chronic, high-dose treatment with an LHRH-agonist (D-Ser-(TBu)6-LHRH-ethylamide) on pituitary and testicular functions were investigated in four adult rhesus monkeys in-season. Doses ...
Spermatogenesis in early and chronic phases of experimental spinal cord injury in the rodent model
Flow cytometry sperm chromatin sperm chromatin
2009/2/18
A rodent model was used to study the degree and dynamics of potential spermatogenic alterations during both acute and chronic phases after experimental spinal cord injury (SCI). Sexually mature Spra...
Suppressive effects of chronic hyperprolactinemia on penile erection and yawning following administration of apomorphine to pituitary-transplanted rats
Prolactin testosterone pituitary transplantation castration
2009/2/17
Recent studies showed in vivo and in vitro that acutely introduced prolactin (PRL) excess was capable of diminishing penile erectile function independently of the LH-testosterone (T) dynamics. In th...
In vivo model for chronic direct intratesticular drug administration
Male infertility testicular toxicity miniosmotic pumps
2009/2/12
The efficacy and toxicity of a new method for chronic direct intratesticular drug infusion were assessed in a rat model. To this end, luteinizing hormone (LH) or buffer was infused via miniosmotic...
Follicle-stimulating hormone（FSH）escape during chronic gonadotropin-releasing hormone（GnRH）agonist and testosterone treatment
GnRH agonist FSH male contraception spermatogenesis
2009/2/12
Observations that serum follicle-stimulating hormone (FSH) levels begin to rise after initial suppression during chronic gonadotropin-releasing hormone (GnRH) agonist treatment of men with prostat...
The effects of chronic administration of pyrimethamine on spermatogenesis and fertility in male rats
Spermatogenesis fertility pyrimethamine testes cytotoxic
2009/2/12
The present study examines whether the antifertility effects of pyrimethamine (PYR), an inhibitor of dihydrofolate reductase, are mediated by a reduction in intratesticular testosterone (T) concentr...
The effects of normal aging on the response of the pituitary-gonadal axis to chronic clomiphene administration in men
Testes inhibin gonadotropins age
2009/2/7
Serum androgens decline with age in normal men, despite normal or elevated bioactive serum gonadotropins, suggesting that primary testicular dysfunction occurs with aging. The authors further assess...