introduction: wistar rats are an outbred strain of albino rats belonging to the species rattus norvegicus. histopathological studies on the testis was carried out to determine the effects of heat and lead on male fertility by evaluating some andrological parameters of the wistar rat such as morphology of spermatozoa, sperm count and motility. the main objective of this research was to compare t...

Introduction: Wistar rats are an outbred strain of albino rats belonging to the species Rattus norvegicus. Histopathological studies on the testis was carried out to determine the effects of heat and lead on male fertility by evaluating some andrological parameters of the wistar rat such as morphology of spermatozoa, sperm count and motility. The main objective of this research was to compare t...

Survival after childhood cancer has increased over the last 25 years with around 80% overall survival but outlook is not trouble free. Within 25 years of diagnosis, 4% will have a second tumour. Cardiotoxicity from anthracyclines, radiation related health problems and endocrine deficiencies all contribute to increased mortality, with 18% reported to have died 30 years after diagnosis. Memory pr...

About 15% of couples that desire children are affected by infertility. Oxidative stress has been involved in unexplained subfertility with a male factor [1]. Although the excessive production of reactive oxygen species (ROS) is detrimental to human spermatozoa, there is a growing body of evidence that suggests that ROS are also involved in the physiological control of some sperm functions. Unde...