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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
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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...
Ultrastructural studies on the development of the blood-epididymis barrier in immature rats
Ultrastructural studies blood-epididymis barrier immature rats
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2009/2/23
The development of the blood-epididymis barrier in immature rats (8, 11, 14, 18, and 21 days old) was examined with an electron microscope using lanthanum nitrate as an electron dense tracer. A grad...
Effect of immobilization stress on testosterone and inhibin in male rats
immobilization stress testosterone inhibin male rats
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2009/2/23
Adult male Wistar rats were subjected to acute and chronic immobilization stress. Changes in plasma levels of LH, FSH and testosterone and in the content of testicular inhibin and testosterone wer...
The changing profiles of L-ornithine decarboxylase and S-adenosyl-L-methionine decarboxylase activities in testicular cell types during sexual maturation of male rats
L-ornithine decarboxylase S-adenosyl-L-methionine testicular cell types
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2009/2/23
To understand the involvement of polyamines in testicular maturation and spermatogenesis, the activity of two enzymes involved in the polyamine synthetic pathway, L-ornithine decarboxylase (ODC) a...
Effects of cocaine hydrochloride on reproductive function and sexual behavior of male rats and on the behavior of their offspring
cocaine hydrochloride reproductive function sexual behavior male rats offspring
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2009/2/23
Cocaine hydrochloride (30, 15, or 0 mg/kg) was administered daily subcutaneously to male rats for a minimum of 72 days. Animals receiving the 15-mg/kg and 0-mg/kg doses were pair-fed with animals 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
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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...
Pituitary gonadotropin content in gonadectomized rats. Immunoassay measurements influenced by extraction solvent and testosterone replacement
Pituitary gonadotropin content gonadectomized rats Immunoassay measurements extraction solvent
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2009/2/23
Increasing interest in events regulating gonadotropin synthesis and secretion led to the reexamination, by radioimmunoassay (RIA), of the pituitary content of luteinizing hormone (LH) and follicle s...
Origin and fate of autophagosomes in Leydig cells of normal adult rats
Origin fate autophagosomes Leydig cells normal adult rats
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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...
HCG treatment increases intratesticular pressure in the abdominal testis of unilaterally cryptorchid rats
testis cryptorchidism hCG vascular permeability
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2009/2/23
Adult, unilaterally cryptorchid rats were given a single subcutaneous injection of hCG. HCG treatment of 100 I.U. (but not 10 I.U.) resulted in a marked increase in intratesticular pressure (approxi...
Temporal appearance of antisperm autoantibodies in Lewis rats following vasectomy
sperm autoantibodies ELISA vasectomy
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2009/2/23
An indirect enzyme-linked immunosorbent assay (ELISA) was employed to monitor antisperm autoantibodies in 16 Lewis rats for up to 36 weeks following vasectomy. This assay was capable of discriminati...
Sexual maturation in underfed weight-matched rats. A test of the“critical body weight”theory of pubertal timing in males
Sexual maturation underfed weight-matched rats critical body weight
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2009/2/23
A popular current theory proposes that the timing of puberty is related to attainment of a critical level of body weight or body fatness. These critical body weight and critical body fat theories ha...
Pituitary-gonadal function in adult male rats subjected to chronic water restriction
water restriction protein-calorie deficit circadian rhythms FSH LH testosterone acute stress
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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...
Altered testosterone feedback in pubertal male rats raised on reduced caloric intake
diet feedback FSH gonadotropins LH male nutrition
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2009/2/23
A study was conducted to explore the hypothesis that reduced caloric intake increases the negative feedback efficacy of testosterone on gonadotropin secretion. Daily subcutaneous injections of testost...
The incidence of spermatic granulomas and their relation to testis weight after vasectomy and vasovasostomy in Lewis rats
spermatic granulomas testis weight vasectomy vasovasostomy Lewis rats
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2009/2/23
The occurrence of spermatic granulomas of the vas deferens was studied in Lewis rats at intervals up to 7 months after vasectomy or vasectomy followed 3 months later by vasovasostomy. The incidence ...
Morphologic and endocrine changes in the reproductive organs in rats implanted with gossypol acetate pellet in the testis
Morphologic and endocrine changes reproductive organs rats implanted gossypol acetate pellet
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2009/2/23
Gossypol acetate pellets in concentrations ranging from 0.5, 1.0, 5.0, 10.0, to 20.0 mg were implanted in the testis of rats for a period up to 7 weeks. The implant was made in one testis only. In...