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Pathophysiological basis for the prophylaxis of preeclampsia through early supplementation with antioxidant vitamins
Ramón Rodrigo1, Mauro Parra, Cleofina Bosco
1Molecular and Clinical Pharmacology Program, Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Independencia 1027, Casilla 70058, Santiago 7, Chile. rrodrigo@med.uchile.cl
Insights
Preeclampsia (PE) is a serious pregnancy disorder. Early antioxidant therapy, particularly with vitamins C and E, may help prevent PE by combating oxidative stress and endothelial dysfunction.
Area of Science:
- Obstetrics and Gynecology
- Maternal-Fetal Medicine
- Pathophysiology
Background:
- Preeclampsia (PE) is a significant global cause of maternal and fetal morbidity and mortality.
- Current understanding suggests endothelial dysfunction underlies PE's clinical features, including hypertension and proteinuria.
- The exact biochemical pathways driving PE pathogenesis remain incompletely understood.
Purpose of the Study:
- To review evidence supporting the pathophysiological basis for early antioxidant therapy in preventing preeclampsia.
- To explore the role of oxidative stress and endothelial dysfunction in PE.
- To highlight the potential benefits of vitamins C and E in PE prevention.
Main Methods:
- Review of existing scientific literature and studies on preeclampsia.
- Analysis of biochemical pathways implicated in PE, including oxidative stress markers.
- Examination of the biological effects of antioxidants like vitamins C and E.
Main Results:
- Elevated levels of lipid peroxidation products (F2-isoprostanes, malondialdehyde) and activated endothelial cells are observed in PE.
- Oxidative stress may activate nuclear transcription factor kappa B (NF-kappaB), contributing to endothelial dysfunction.
- Emerging evidence suggests the antiangiogenic factor sFlt1 is involved, but likely subsequent to other pathophysiological events.
Conclusions:
- Oxidative stress and endothelial dysfunction are key factors in preeclampsia development.
- Early antioxidant interventions, utilizing vitamins C and E, show promise for PE prevention.
- Further research into antioxidant therapy is warranted to mitigate PE's impact.
Abstract:
Preeclampsia (PE) is a multisystem disorder that remains a major cause of maternal and foetal morbidity and death. To date, no treatment has been found that prevents the development of the disease. Endothelial dysfunction is considered to underlie its clinical manifestations, such as maternal hypertension, proteinuria, and edema; however, the precise biochemical pathways involved remain unclear. A current hypothesis invokes the occurrence of oxidative stress as pathogenically important, as suggested by the fact that in PE, the placental and circulating levels of lipid peroxidation products (F2-isoprostanes and malondialdehyde [MDA]) are increased and endothelial cells are activated. A potential mechanism for endothelial dysfunction may occur via nuclear transcription factor kappa B (NF-kappaB) activation by oxidative stress. Alternatively, the idea that the antiangiogenic placental soluble fms-like tyrosine kinase 1 factor (sFlt1) is involved in the pathogenesis of this disease is just emerging; however, other pathophysiological events seem to precede its increased production. This review is focused on evidence providing a pathophysiological basis for the beneficial effect of early antioxidant therapy in the prevention of PE, mainly supported by the biological effects of vitamins C and E.
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