Effect of Phosalone on Testicular Tissue and In Vitro Fertilizing Potential
Journal Title: International Journal of Fertility & Sterility - Year 2015, Vol 9, Issue 1
Abstract
Background The current study aimed to evaluate the effects of phosalone (PLN) as an organophosphate (OP) compound on testicular tissue, hormonal alterations and embryo development in rats. Materials and Methods In this experimental study, we divided 18 mature Wistar rats into three groups-control, control-sham and test (n=6 per group). Animals in the test group received one-fourth the lethal dose (LD50) of PLN (150 mg/kg), orally, once per day for 45 days. DNA laddering and epi-fluorescent analyses were performed to evaluate testicular DNA fragmentation and RNA damage, respectively. Serum levels of testosterone and inhibin-B (IN-B) were evaluated. Testicular levels of total antioxidant capacity (TAC), total thiol molecules (TTM) and glutathione peroxidase (GSH-px) were analyzed. Finally, we estimated sperm parameters and effect of PLN on embryo development. Two-way ANOVA was used for statistical analyses. Results There was severe DNA fragmentation and RNA damage in testicular tissue of animals that received PLN. PLN remarkably (p<0.05) decreased testicular TAC, TTM and GSH-px levels. Animals that received PLN exhibited significantly (p<0.05) decreased serum levels of testosterone and IN-B. Reduced sperm count, viability, motility, chromatin condensation and elevated sperm DNA damage were observed in the test group rats. PLN resulted in significant (p<0.05) reduction of in vitro fertilizing (IVF) potential and elevated embryonic degeneration. Conclusion PLN reduced fertilization potential and embryo development were attributed to a cascade of impacts on the testicles and sperm. PLN promoted its impact by elevating DNA and RNA damages via down-regulation of testicular endocrine activity and antioxidant status.
Authors and Affiliations
Amir Amniattalab
Relationship between Sperm Parameters with Sperm Function Tests in Infertile Men with at Least One Failed Cycle after Intracytoplasmic Sperm Injection Cycle
Background: Imbalance between production of reactive oxygen species (ROS) and total antioxidant capacity in testis, epididymis, and seminal fluid can eventually lead to infertility. Abnormal sperm chromatin packaging, an...
Evaluation of Risk Factors Associated with Endometriosis in Infertile Women
Background Endometriosis affects women’s physical and mental wellbeing. Symptoms include dyspareunia, dysmenorrhea, pelvic pain, and infertility. The purpose of this study is to assess the correlation between some releva...
Comparison of 25-hydroxyvitamin D and Calcium Levels between Polycystic Ovarian Syndrome and Normal Women
Background Given the relationship of vitamin D deficiency with insulin resistance syndrome as the component of polycystic ovary syndrome (PCOS), the main aim of this study was to compare serum level of 25hydroxyvitamin D...
Association between Sexual Activity during Menstruation and Endometriosis: A Case-Control Study
Background The prevalence of endometriosis in the general population is estimated at 7-10%. There are various risk factors for this disease, including early menarche age, prolonged menstruation or no history of pregnancy...
Which stage of mouse embryos is more appropriate for vitrification?
Background Vitrification has been shown as one of the most effective methods of cryopreservation for mammalian embryos. However, there is no consensus which stage of embryonic development is the most appropriate for vitr...