نتایج جستجو برای: sertoli cell condition medium
تعداد نتایج: 2157061 فیلتر نتایج به سال:
background: artesunate is commonly used in malaria therapy. many antimalarial drugs have been associated with male reproductive dysfunction. the effect of artesunate on male reproductive activities was studied using in–vivo and in-vitro experimental models. methods: adult male rats (n=6) were orally given artesunate (2.9 mg/kg body weight) on daily basis for five days. artesunate (2.9 mg/kg bod...
introduction: complete androgen insensitivity syndrome (previously called testicular feminization) is specified by a 46 xy karyotype and negative sex chromatin, bilateral undescended testes, female genitalia appearance, and lack of mullerian derivatives. discussion: our medline search revealed that this is the first reported case of bilateral sertoli–leydig cell tumor (slct) in androgen insensi...
Dear Editor, Among the sex cord tumours, Sertoli cell tumours constitute 1% of all testicular tumours. The association between Sertoli cell tumours and azoospermia is not well defined, and the patient described in this letter is the second case reported in the literature. Sex cord tumours account for approximately 4% of all testicular tumours. These tumours originate from Sertoli cells and usua...
One hundred one azoospermic males were subjected to fine needle aspiration cytology (FNAC) of the testis and 11 of them underwent testicular biopsy as well. In 99 cases, the aspiration was adequate for classifying into different categories, which are as follows: Sertoli cell only syndrome (46), normal spermatogenesis (27), hypospermatogenesis (10), tubular/peritubular sclerosis (10) and maturat...
Background: Novel roles for the interaction of cardiotonic steroids to Na+/K+-ATPase have been established in recent years. The aim of the present study was to investigate the intracellular signaling events downstream the action of ouabain on Na+/K+-ATPase in Sertoli cell obtained from immature rats. Treatment of Sertoli cells with ouabain (1 μM) induced a rapid and transient increase in the ex...
Thyroid hormone regulates early postnatal Sertoli cell proliferation. Transient neonatal hypothyroidism allows prolonged postnatal Sertoli cell mitogenesis and doubles adult Sertoli cell numbers, testis weight, and sperm production. The mechanism of this effect is unknown. Cell proliferation is stimulated by cyclins and cyclin-dependent kinases and inhibited by cyclin-dependent kinase inhibitor...
background: the sertoli cells in the testis create unique and safe environment to protect seminiferous tubules from auto antigens and invading pathogens. these cells produce the survival factor of the blood-testis barrier and produce special materials such as androgen binding proteins and contribute to the coordinated action of spermatogenesis. given that the sertoli cells play an essential rol...
Between June 85 and December 87, 69 testicular biopsies were submitted for histopathological examination during investigation of infertility; ten (14%) patients had a Sertoli cell only syndrome. The history, clinical features, and hormonal profiles were analyzed in an attempt to categorize these patients on aetiological basis. Two followed treatment of malignancy--one by radiation for testicula...
Sertoli cells are involved in the control of spermatogenesis. In adult animals, the Sertoli cell stocks, fixed before puberty, are highly correlated with those of the germ cells. Some factors influencing Sertoli cell stock formation have been analyzed: 1) Early hemicastration of impuberal animals showed that the proliferative activities of the Sertoli and the germ cells before puberty, rather t...
Fetal androgen disruption, induced by the administration of anti-androgen flutamide (0.4, 2, and 10 mg/kg day) causes a long-term apoptosis in testicular germ cells in adult male rat offspring. One of the questions raised by this observation is the role of the Sertoli cells in the adult germ cell apoptotic process. It is shown here that Sertoli cells originating from 15-day-old rats treated in ...
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