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Updated: Jul 6, 2026
06:55
Assessment of Maternal Vascular Remodeling During Pregnancy in the Mouse Uterus
Published on: December 5, 2015
Association of maternal endothelial dysfunction with preeclampsia
J C Chambers1, L Fusi, I S Malik
1National Heart and Lung Institute, Imperial College School of Medicine, Hammersmith Hospital, London, England. j.kooner@ic.ac.uk
JAMA
|April 13, 2001
Summary
Women with a history of preeclampsia show impaired endothelial function postpartum, linked to oxidative stress. Antioxidant treatment with ascorbic acid improved vascular function, suggesting a therapeutic target for these women.
Area of Science:
- Obstetrics and Gynecology
- Cardiovascular Research
- Vascular Biology
Background:
- Preeclampsia is associated with placental factors damaging maternal vascular endothelium.
- Previous studies, limited to pregnancy, couldn't isolate maternal vs. placental mechanisms of endothelial dysfunction.
Purpose of the Study:
- To investigate endothelial function in nonpregnant women with prior preeclampsia.
- To determine if oxidative stress mediates endothelial dysfunction in these women.
Main Methods:
- A case-control study compared endothelial function (flow-mediated and glyceryl trinitrate-induced dilatation) in 113 women with previous preeclampsia and 48 controls.
- Measurements were repeated after intravenous ascorbic acid administration to assess oxidative stress.
Main Results:
- Women with prior preeclampsia exhibited significantly lower flow-mediated dilatation compared to controls.
- Endothelium-independent dilatation was similar across groups.
- Ascorbic acid improved flow-mediated dilatation in previously preeclamptic women but not controls, indicating oxidative stress involvement.
Conclusions:
- Endothelial dysfunction persists postpartum in women with a history of preeclampsia.
- This dysfunction is not explained by traditional vascular risk factors.
- Antioxidant therapy with ascorbic acid shows potential for reversing endothelial impairment.
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