Related Experiment Video
Updated: Jan 6, 2026

Evaluation of Hepatic Glucose Production in a Polycystic Ovary Syndrome Mouse Model
Published on: March 5, 2022
Association between VDR Apa I polymorphism and subclinical hypothyroidism in patients with polycystic ovary syndrome:
Li Liu1, Huixian Kang1, Xuli Li1
1Reproductive Center, Yinchuan Maternal and Child Health Hospital Affiliated to Ningxia Medical University, Ningxia, China.
Purpose:
To investigate the association between vitamin D receptor (VDR) gene polymorphisms and sub-clinical hypothyroidism (SCH) risk in polycystic ovary syndrome (PCOS) patients.
Methods:
Forty-four PCOS patients and 24 controls were enrolled. VDR gene sequences, lipid profiles, and thyroid function were analyzed, with stratification by SCH status for group comparisons.
Results:
PCOS patients showed significant differences in fasting glucose, triglycerides, and BMI vs. controls. SCH patients exhibited distinct Apa I genotypes (P < 0.05), with the AC genotype rate (76.47%) significantly higher in PCOS + SCH vs. other groups. Unadjusted/adjusted ORs for SCH patients with the AC genotype were 4.2 (95% CI 1.40-13.10), 5.01 (95% CI 1.53-16.38), and 6.25 (95% CI 1.69-23.09). No other polymorphisms were significant.
Conclusion:
This study revealed that the VDR Apa I genotype (AC as a distinct risk factor) was associated with SCH in PCOS patients, suggesting new genetic insights.
Related Concept Videos
Synthesis and Regulation of Thyroid Hormones
Upon reaching the thyroid gland, TSH stimulates the follicular cells' active uptake of iodide ions from the blood. The ions diffuse to the apical surface of the cells and are oxidized to iodine. The...
Oogenesis

