نتایج جستجو برای: human testicular tissue
تعداد نتایج: 2348430 فیلتر نتایج به سال:
Inhibin immunoreactivity was estimated in a number of gonadal and non-gonadal tumors. Dog Sertoli cell tumors and human granulosa cell and Leydig cell tumors contained high concentrations of inhibin-like material. Levels, comparable with those in normal testes and ovaries were detected in human testicular non-seminomas and in ovarian cystadenomas, thecomas and adenofibromas. No activity was fou...
Introduction: Methotrexate (MTX) is a chemotherapeutic agent that used for the treatment of a variety of tumors and inflammatory diseases. Methotrexate cause defective cogenesis, spermatogenesis, fertility impairment and different pathological changes on testis laboratory animals. The aim of this study was to investigate the effect of methotrexate administration on morphometerical changes...
AIM To investigate the stepwise development and germ cell gene expression in allografted neonatal mouse testes and the differentiation of immature human testicular cells in xenografted human testes. METHODS Immunodeficient nude mice were used as hosts for allografting of neonatal mouse testes and xenografting of human fetal testicular tissues. Stepwise development and stage-specific gene expr...
Formalin is widely used in industry and in medicine (as tissue fixative and disinfectant).It contains reactive molecules which have been known for its cytotoxic effects. To evaluate the effect of formalin exposure on the testicular tissue and sperm parameter from neonatal period through physical and sexual maturity, 28 male Wister rats were assigned into two equal test and control groups. The t...
CONTEXT Young boys treated with high-dose chemotherapy are often confronted with infertility once they reach adulthood. Cryopreserving testicular tissue before chemotherapy and autotransplantation of spermatogonial stem cells at a later stage could theoretically allow for restoration of fertility. OBJECTIVE To establish in vitro propagation of human spermatogonial stem cells from small testic...
Background: Cyclosporine-A(CsA) is an immunosuppressive polypeptide which is produced byTolypocladium inflatum gams and can cause infertility. Satureja hortensis or summer savory is a one year plant from Lamiaceae family which is used as a motive drug, anti-bloat, anti-infection and sexual power enhancer. According to positive effects of S. hortensis and negative effects of CsA we will evaluate...
Background and purpose: About 50% of infertility in couples is related to male factors and oxidative stress is one of the main causes of infertility in men. Hydrogen peroxide has an adverse effect on male reproductive system due to its free radicals. Spirulina and phycocyanin are known to have antioxidant properties and can modify stressors. Materials and methods: In this experimental study, ...
Virilisation of the XX foetus is the result of androgen excess, resulting most frequently from congenital adrenal hyperplasia in individuals with typical ovarian differentiation. In rare cases, 46,XX gonads may differentiate into testes, a condition known as 46,XX testicular disorders of sex development (DSD), or give rise to the coexistence of ovarian and testicular tissue, a condition known a...
abstract background: in this study we aimed to evaluate the impact of chronic exposure to the gly-phosate (gp) on rat’s testicular tissue and sperm parameters. objective: testicular tissue, morphology of sperms and testosterone level in serum of mature male rats were analyzed. materials and methods: animals were divided into two test and control-sham groups. the test group was subdivided into 4...
The accurate management of testicular germ cell tumors (TGCTs) depends on identifying the individual histological tumor components. Currently available data protein expression in TGCTs are limited. human atlas (HPA) is a comprehensive resource presenting and localization proteins across tissue types diseases. In this study, we have compared from HPA with our in-house immunohistochemistry core T...
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