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Possible role of elongated spermatids in control of stage-dependent changes in the diameter of the lumen of the rat seminiferous tubule
elongated spermatids stage-dependent changes rat seminiferous tubule
2009/2/23
Adult male rats were treated with a single dose of 650 mg/kg methoxy acetic acid to deplete the seminiferous tubules specifically of pachytene and later spermatocytes. The effect of this treatment a...
Age-related changes in the concentration of cytosolic androgen receptors in the epididymis, vas deferens and seminal vesicle of maturing male mice
Age-related changes cytosolic androgen receptors epididymis
2009/2/23
In this study, changes in the number of androgen binding sites that occur in cytosols of epididymis, vas deferens and seminal vesicle of mice from 10 to 90 days of age are described. Specific satura...
Changes in testicular morphology in boars actively immunized against gonadotropin hormone-releasing hormone
testicular morphology boars actively gonadotropin hormone-releasing hormone
2009/2/23
Alterations in testicular morphology were studied in boars actively immunized against gonadotropin hormone releasing hormone (GnRH). Ten boars were divided equally into two experimental groups (five...
Morphologic changes induced by short-term ischemia in the rat testis are not affected by treatment with superoxide dismutase and catalase
short-term ischemia rat testis superoxide dismutase and catalase
2009/2/23
Short-term testicular ischemia was induced unilaterally by ligating the testicular artery for 60 or 100 minutes in adult rats. After 7 days, the rats were fixed by vascular perfusion. The effect of ...
Testicular hemodynamic changes after the surgical creation of a varicocele in the rat. Intravital microscopic observations
Testicular hemodynamic changes surgical creation varicocele rat
2009/2/23
The present study investigated the effect of a surgically induced varicocele on the dynamics of testicular blood flow. The surface vasculature of the normal and the varicocele-affected testis was ex...
Effect of gonadotropin-releasing hormone on prolactin levels in males unrelated to stress or behavioral changes
gonadotropin-releasing hormone prolactin levels males
2009/2/23
Hormone levels, physiologic parameters, electroencephalographic (EEG) activity, and changes in subjective feelings recorded using a nonverbal instrumental device were assessed following the double-b...
Evidence for age-dependent changes in Sertoli cell androgen receptor concentration
age-dependent changes Sertoli cell receptor concentration
2009/2/23
Cytosol and nuclear receptor concentrations in Sertoli cells isolated from the testes of 15-, 25-, and 35-day-old rats were measured using hydroxylapatite separation procedures. In these cells the m...
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
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...
Sex steroid-induced changes in collagen of the prostate and seminal vesicle of rats
testosterone propionate cniı yctrotestosterone estradiol prolactin collagen
2009/2/23
The effects of androgen alone or in combination with estrogen or prolactin on the collagen of the prostate and seminal vesicles were studied in prepubertal and adult rats. Castration decreased the c...
The effects of the indazole carboxylic acid derivative, tolnidamine, on testicular function：I. Early changes in androgen binding protein secretion in the rat
tolnidamine rABP LH FSH testosterone
2009/2/20
The indazole carboxylic acid derivative, tolnidamine, has marked antispermatogenic activity in several animal species. In this study, we assessed the effect of tolnidamine on rat Sertoli cell functi...
Changes in serum levels of LH, FSH, prolactin, testosterone, and cortisol associated with season and mating in male pygmy goats
serum levels LH FSH prolactin testosterone cortisol season male pygmy goats
2009/2/20
Four male pygmy goats were used in a study designed to determine the effects of season on serum hormone (luteinizing hormone, follicle stimulating hormone, prolactin, testosterone, and cortisol) l...
Acute hormonal changes following chemotherapy for Hodgkin's disease in man
Acute hormonal changes Hodgkin's disease man
2009/2/19
Eleven men, aged 21 to 60 years, with Hodgkin's disease have been studied before, during, and after chemotherapy. Blood samples were obtained for hormone analyses. In all 11 patients FSH levels rose...
Evidence for Maturational Changes During Epididymal Transit
sperm epididymis egg binding rat
2009/2/19
A study in vitro of interactions between uncapacitated rat spermatozoa and freshly ovulated rat oocytes showed that testicular spermatozoa were unable to adhere to the zona pellucida. On the other h...
The Use of BCG（Bacille Calmette Guérin）as an Antispermatogenic Agent: Structural and Hormonal Changes
antispermatogenic agent BCG contraception orchitis granuloma
2009/2/19
The effectiveness of intratesticularly injected bacille Calmette Guérin (BCG) as an antispermatogenic agent was examined by light microscopy in rats after three, six, ten, twenty, and 56 days and in...
Focal Changes in the Seminiferous Tubules of Vasectomized Hamsters
vasectomy testis seminiferous tubules hamster
2009/2/19
The hamster testis was studied by light and electron microscopy at intervals of two weeks, five months, and one year after vasectomy. No changes were detected at two weeks, but most testes showed mi...