quantum dots are new types of fluorescent materials for biological labeling. as a result, qds toxicity study is an essential requirement for future clinical applications. therefore, the cytotoxic cdse:zns quantum dots effects on some organs in mice are presented in this study. in this work, 10, 20 and 40 mg/kg doses of cdse:zns quantum dots were injected to 32 adult male mice. structural and op...

background: the effects of electromagnetic field (emf) on reproductive system have been of critical concern for a long time. it has been shown that the emf can adversely affect testicular cells and tissue and decrease male fertility. the most important determinants of male fertility are sperm development and motility, which are affected by changes in several factors including lipocalin 2 protei...

background: cancer/testis antigens (ctas) are members of a group of proteins which are normally expressed in testis germ cells and to a lesser extent in the ovaries. because of recent reports about their aberrant and specific expression in some tumoral tissues, they may play a role as new candidates for targeted therapy. therefore, the study of the expression pattern of these biomarkers and its...

Background: The effects of electromagnetic field (EMF) on reproductive system have been of critical concern for a long time. It has been shown that the EMF can adversely affect testicular cells and tissue and decrease male fertility. The most important determinants of male fertility are sperm development and motility, which are affected by changes in several factors including lipocalin 2 protei...

Background: The aim of the present study was to examine factors that may affect the outcome of testis tissue xenografting. Recipient factors were examined by grafting small fragments of testis tissue from newborn piglets under the back skin of immunodeficient mice of different strains [severe combined immunodeficiency (SCID) vs. nude), sex (male vs. female) and gonadal status (intact vs. gonade...

Background Despite the bulk of studies on fatty acid supplementation in maternal diet and confirmed the positive effects on brain and vision, these effects on offspring reproductive organs have not been tested. The aim of the present study was to stereological evaluate the effect of feeding Fish Oil (FO) for mothers on the testis structure of offspring. MaterialsAndMethods Sixty mature female N...

BACKGROUND In numerous Caudata, the testis is known to differentiate new lobes at adulthood, leading to a multiple testis. The Iberian ribbed newt Pleurodeles waltl has been studied extensively as a model for sex determination and differentiation. However, the evolution of its testis after metamorphosis is poorly documented. METHODS Testes were obtained from Pleurodeles waltl of different age...

Splenogonadal fusion is a rare congenital malformation whereby the splenic tissue is found attached or surrounded by the testis, and presents in both continuous and discontinuous forms. Splenogonadal fusion may be misinterpreted as a primary malignant testicular or an adenomatoid tumor. Knowledge about the existence of such an entity is essential in order to preserve the testis during surgical ...

Objective: The local thermoregulation in testis is important for optimum spermatozoa development. Excessive heat hampers this regulation resulting alteration of normal testicular function. present investigation confirms the role free radicals hyperthermia induced oxidative damage and elucidates dose-dependent ameliorating effect resveratrol (RSV) against damage. aim also to observe selective co...