The present study was aimed at investigating ultrastructure of different testicular cells and their interactions through various junctional specializations during different phases of reproductive cycle in wall lizard H. flaviviridis to develop an integrated approach of cell-cell interaction in control of testicular functions. Specialized steroid synthesizing cell organelles such as smooth endop...

Previous studies have shown that grafted neonatal chicken testicular tissue can develop and produce functional sperm; however, it was unclear whether regenerative processes or proportional growth caused the re-appearance of spermatogenic tissue. We dissociated testicular tissues, performed subcutaneous auto-transplantation of the re-aggregated cells to castrated cockerels, and monitored the pos...

the chronic exposure to elf-emf (extremely-low frequency electromagnetic field) has been shown as an effective factor at biological systems. in order to determine the possible effects of whole-body exposure to emf on plasma levels of testosterones and corticosterone, weight gain and testicular gene expression of gstt1 of male rats, the present study was performed by the following procedure: thi...

AIM The present study compared the testicular cytology and histology between crossbred (Holstein-Friesian [HF] × Tharparkar) and purebred (HF and Tharparkar) bulls to find out differences if any. MATERIALS AND METHODS Four peripubertal bulls from each breed were utilized for the study. Through percutaneous needle aspiration biopsy, Sertoli and spermatogenic cells were extracted, and morphomet...

Received: Revised: Accepted: Published online: August 07, 2016 December 16, 2016 December 28, 2016 January 16, 2017 Reports of testicular leiomyosarcoma are extremely rare in the veterinary literature. Here we report a case of testicular leiomyosarcoma occurring in a 32-weeks-old male senescence marker protein 30 (SMP30) knockout mouse. Grossly, a testicular mass completely replaced the right t...

Previously, we demonstrated the ability of the normal mammary microenvironment (niche) to direct non-mammary cells including testicular and embryonic stem cells (ESCs) to adopt a mammary epithelial cell (MEC) fate. These studies relied upon the interaction of transplanted normal MECs with non-mammary cells within the mammary fat-pads of recipient mice that had their endogenous epithelium remove...

Rats with adjuvant-induced arthritis (AA) have low levels of serum testosterone, and production of testosterone reportedly is influenced by macrophage secretory products. This study was undertaken to understand the mechanism mediating this hypoandrogenism. Testicular macrophages from AA and nonarthritic (NA)rats were cultured, and conditioned media was added to testicular interstitial cells and...

BACKGROUND After improvements in various cancer treatments, life expectancy has been raised, but success in treatment causes loss of fertility in many of the survived young men. Cryopreservation of immature testicular tissues or cells introduced as the only way to preserve fertility. However, freezing has some harmful effects. Melatonin, a pineal gland hormone, has receptors in reproductive sys...

The chronic exposure to ELF-EMF (extremely-low frequency electromagnetic field) has been shown as an effective factor at biological systems. In order to determine the possible effects of whole-body exposure to EMF on plasma levels of testosterones and corticosterone, weight gain and testicular gene expression of Gstt1 of male rats, the present study was performed by the following procedure: thi...

Background: Atrazine (ATR), an herbicide, is used in order to control broadleaf and grassy weed. ATR has been estimated to impact the testicular tissue both by inhibiting the endocrine system and partly by reducing the antioxidant status. Thus, current study was designed to evaluate the protective effect of vitamin E and testosterone against ATR-induced damages in testicular tissue. Materials a...