13 September، 2026
A master’s thesis presented by A master’s thesis presented by Ali Mohammed Hussein “Pathological Effects of Nano Silver on the Male Reproductive System of Rats and the Role of Selenium in Repairing the Damage”
Master’s Thesis Defense – College of Veterinary Medicine, Department of Pathology and Poultry Diseases
A Master’s thesis titled “Pathological Effects of Nano‑Silver on the Male Reproductive System of Rats and the Role of Selenium in Repairing the Damage” by the student Ali Mohammed Hussein, supervised by Asst. Prof. Hadeel Basim Thanoon, was defended on Sunday, September 6, 2026.
The examination committee consisted of:
- Asst. Prof. Shahbaa Khalil Ibrahim (College of Veterinary Medicine – University of Mosul) – Chair
- Asst. Prof. Wasim Hanna Kroumi (College of Veterinary Medicine – University of Mosul) – Member
- Asst. Prof. Ahmed Abdullah Sultan (College of Veterinary Medicine – University of Tikrit) – Member
- Asst. Prof. Hadeel Basim Thanoon (College of Veterinary Medicine – University of Mosul) – Member and Supervisor
The study aimed to investigate the synergistic effects of nano‑silver particles and selenium on the male reproductive system of rats, including assessments of antioxidant enzymes, gene expression, morphometric measurements, and histopathological changes. The results showed a significant increase in body weight in the nano‑silver group. Statistical analysis revealed variations in the diameter and width of seminiferous tubules among all experimental groups. Additionally, levels of glutathione and superoxide dismutase enzymes exhibited significant differences in both treatments. Histopathological alterations varied in severity among the groups, with the selenium group showing the least tissue damage. These findings highlight the protective and restorative role of selenium, compared with nano‑silver particles, at the molecular level and as an antioxidant enhancer, contributing to the repair and preservation of male reproductive tissue structure in rats.
After the student confidently defended his thesis and addressed the committee’s questions, the thesis was approved.
Congratulations to the researcher, the supervisor, the College, and the Department of Pathology and Poultry Diseases on this scientific achievement. This defense contributes to the advancement of Sustainable Development Goal 4: Quality Education.
A master’s thesis presented by A master’s thesis presented by Majda Ahmed Jassim “Conventional and Molecular Diagnosis of Aerobic Bacteria Isolated from Otitis in Domestic Cats”
A master’s thesis presented by A master’s thesis presented by Aisha Faisal Ibrahim “Diagnostic Study of Contagious Ecthyma in Sheep and Goats”
