Circulating Vascular Progenitor Cells and Central Arterial Stiffness in Polycystic Ovary Syndrome
Author Information
Author(s): Dessapt-Baradez Cecile, Reza Maria, Sivakumar Ghayathri, Hernandez-Fuentes Maria, Markakis Kostas, Gnudi Luigi, Karalliedde Janaka
Primary Institution: Guy's and St Thomas and King's College Hospitals, King's College London
Hypothesis
Are there differences in vascular progenitor cells and central arterial stiffness in non-obese PCOS subjects compared to healthy controls?
Conclusion
Non-obese PCOS is characterized by a reduced number of vascular progenitor cells, impaired function, and increased central arterial stiffness.
Supporting Evidence
- PCOS subjects had a significantly lower number of circulating CD34+133+ VPCs compared to controls.
- PCOS subjects showed impaired in vitro tube formation of VPCs.
- Augmentation index was significantly higher in PCOS subjects, indicating increased arterial stiffness.
Takeaway
Women with a condition called PCOS have fewer special cells that help blood vessels heal and are at a higher risk for heart problems.
Methodology
The study compared vascular progenitor cells and arterial stiffness in 14 non-obese PCOS subjects and 12 matched healthy controls using flow cytometry and applanation tonometry.
Potential Biases
Potential selection bias as subjects were not on medication and had specific inclusion criteria.
Limitations
The study is cross-sectional and does not establish causation; it also did not score hirsutism severity.
Participant Demographics
14 non-obese PCOS subjects and 12 healthy controls, mostly Caucasian, with similar age and BMI.
Statistical Information
P-Value
p=0.03
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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