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Updated: Jan 28, 2026

Author Spotlight: Investigating the Mechanisms and Inducing Models of Polycystic Ovary Syndrome
Published on: July 5, 2024
Circulating Levels of Vitamin D3 and Leptin in Lean Infertile Women with Polycystic Ovary Syndrome
Ayman Shehata Dawood1, Adel Elgergawy1, Ahmed Elhalwagy1
1Department of Obstetrics and Gynecology, Faculty of Medicine, Tanta University, Tanta, Egypt.
Objective:
The objective of this study is to measure levels of Vitamin D3 and leptin and assess their relation of each to the pathogenesis of polycystic ovary syndrome (PCOS).
Design:
This was a cohort observational study.
Settings:
This study was conducted at the Department of Obstetrics and Gynecology, Tanta University.
Materials And Methods:
Ninety lean women were enrolled in this study and were allocated into two groups with 45 patients in each group: the first group (study group) who are lean women with PCOS and the second group (control group) who are the lean infertile patients without PCOS. Blood samples were collected and tested for study parameters.
Results:
There were no significant differences regarding demographic characteristics between both groups. The differences were in ovarian volume and hormonal profiles. Serum leptin was found to be significantly increased in lean PCOS than in control groups. Vitamin D3 levels were found to be lower in the lean PCOS group than in control group.
Conclusion:
Lean PCOS women are a unique group with specific hormonal profiles different from the typical PCOS profiles. Leptin and Vitamin D3 may have a role in the pathogenesis of lean PCOS, but large studies are still required regarding this unique group.
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