13 September، 2026
A master’s thesis presented by A master’s thesis presented by Manar Masoud Mousa “The Effect of Dexamethasone on Estrogen and Prolactin and Their Impact on Ovarian and Mammary Gland Activity in Lactating Rabbits”
Master’s Thesis Defense – College of Veterinary Medicine, Department of Surgery and Animal Reproduction
A Master’s thesis titled “The Effect of Dexamethasone on Estrogen and Prolactin and Their Impact on Ovarian and Mammary Gland Activity in Lactating Rabbits” by the student Manar Masoud Mousa, supervised by Asst. Prof. Ilyas Khidr Hussein and Asst. Lecturer Ghada Abdulrahman Sultan, was defended on Wednesday, September 2, 2026.
The examination committee consisted of:
- Asst. Prof. Bara Duraid Ibrahim (College of Veterinary Medicine – University of Mosul) – Chair
- Lecturer Ibrahim Younis Ibrahim (College of Veterinary Medicine – University of Mosul) – Member
- Asst. Lecturer Naziha Sultan Ahmed (College of Veterinary Medicine – University of Mosul) – Member
- Asst. Prof. Ilyas Khidr Hussein (College of Veterinary Medicine – University of Mosul) – Member and Supervisor
- Asst. Lecturer Ghada Abdulrahman Sultan (College of Veterinary Medicine – University of Mosul) – Member and Supervisor
The study aimed to investigate the effect of dexamethasone on blood levels of estrogen and prolactin, as well as the associated histological and immunohistochemical changes in the ovaries and mammary glands of lactating rabbits. The results demonstrated a negative impact of dexamethasone treatment on estrogen and prolactin concentrations, in addition to inhibition of follicular growth and development, reduced estrogen receptor expression in ovarian tissue, and decreased diameters of secretory vesicles and ducts within and between mammary gland lobules.
After the student confidently and scientifically defended her thesis and responded to the committee’s questions, the thesis was approved.
Congratulations to the researcher, the supervisors, the College, and the Department of Surgery and Animal Reproduction on this scientific achievement. This defense contributes to the advancement of Sustainable Development Goal 4: Quality Education.
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