Background With the advent of rapid industrialization, several chemicals are released in the air, water and soil. Chemical elements play a crucial role in male reproduction. Heavy metals exposure can adversely affect male fertility and result in severe impairment of testicular functions including germ cell death and inhibition of testicular steroidogenesis. The aim of this study was to investig...

Spermatogenic damage may occur after vasectomy, and the damage is pressure mediated, occurring when the occluded reproductive tract is unable to accommodate additional sperm produced by the testis. This study aimed to determine the long-term effect of vasectomy on spermatogenesis in humans and clarify how the balance between sperm production in the testis and sperm storage in or removal from th...

Recurrence of testicular tumors in young males generally prompts rapid investigation and treatment. We report 3 patients with past histories of treated testicular cancer referred with radiographic evidence suggestive of intrathoracic metastases. In each case chest imaging demonstrated mediastinal/hilar lymphadenopathy. In one case pulmonary nodules were also identifi ed. In all three patients f...

The objective of this study was to evaluate inducible nitric oxide synthase (iNOS) and nuclear factor-kappaB inhibitor (NF-kappaB) expression and the potential chemoprotective effects of an NF-kappaB inhibitor, pyrrolidine dithiocarbamate (PDTC), against cisplatin-induced testicular damage in rats. Rats were divided into 4 equal groups: group 1, control; group 2, injected with cisplatin (CIS) f...

In this report the morphology of the gonads and the growth of the Wolffian and Müllerian duct in foetal mouse true hermaphrodites (16 days p.c.) have been studied and compared to that of normal mice. The ducts from the hermaphrodites were placed in one of five groups according to the proportion of male and female characteristic of the gonad. When more than 85% of the gonadal tissue was masculin...

Cryopreservation of testicular tissue is a new option in fertility preservation for prepubertal male animals. The purpose of this study was to explore the effects of different cryoprotectant agents (CPAs) at various concentrations on testes after the cryopreservation of calf testicular tissue. These experiments selected dimethyl sulfoxide (DMSO), glycerol, propylene glycol (PrOH), and sucrose a...

Testicular torsion is a urological emergency that leads to serious testicular damage and male infertility. We performed this study to identify specific proteins that are differentially expressed in response to testicular torsion and detorsion-induced ischemia-reperfusion (I-R) injury. Adult male rats were divided into two groups: a sham-operated group and a testicular I-R group. Testicular tors...

Testosterone and 5 alpha-dihydrotestosterone (DHT) concentrations in tissue and body fluid were determined in adult male rats to investigate the mode of androgen distribution. The highest concentration of androgen (testosterone + DHT) and the smallest ratio of DHT/testosterone were observed in the intratesticular tissue fluid. The androgen concentration in testicular vein blood was much higher ...