Research Repository

See what's under the surface

The role of oxidative stress and antioxidant supplementation in pregnancy disorders

Poston, Lucilla; Igosheva, Natalia; Mistry, Hiten D.; Seed, Paul T.; Shennan, Andrew H.; Rana, Sarosh; Karumanchi, S. Ananth; Chappell, Lucy C.

Authors

Lucilla Poston

Natalia Igosheva

Hiten D. Mistry hiten.mistry@nottingham.ac.uk

Paul T. Seed

Andrew H. Shennan

Sarosh Rana

S. Ananth Karumanchi

Lucy C. Chappell

Abstract

Oxidative stress is widely implicated in failed reproductive performance including infertility, miscarriage, diabetes-related congenital malformations and preeclampsia. Maternal obesity is a strong risk factor for preeclampsia, and recently, in an animal model of maternal obesity we have reported evidence of oxidative stress in the oocytes of obese animals prior to pregnancy as well as in early stage embryos. This adds to the growing evidence for a greater focus on the pre-conceptual period in prevention of pregnancy disorders including those related to oxidative stress. Our research has also focussed on the role of free radicals and antioxidant capacity in preeclampsia. Assessment by measurement of markers of lipid peroxidation or of antioxidant capacity has provided unequivocal evidence for oxidative stress in this disorder. Partial failure of the process of placentation has been implicated, with recent evidence proposing that ischaemia-reperfusion in the placenta may contribute to oxidative stress in trophoblast. Endoplasmic reticulum stress in the placenta may also play a role. We and others have performed randomised controlled trials to determine whether early supplementation with vitamins C and E in women at risk of preeclampsia may be beneficial but these studies have shown no evidence for prevention of preeclampsia. Whether this represents an inappropriate antioxidant strategy or whether supplementation has been too late in gestation to be beneficial is not known. Other potential approaches to prevention of preeclampsia through amelioration of oxidative stress include provision of supplements in the pre-conceptual period, selenium supplements, anti-peroxynitrite strategies and statins.

Journal Article Type Article
Publication Date Dec 1, 2011
Journal American Journal of Clinical Nutrition
Print ISSN 0002-9165
Electronic ISSN 1938-3207
Publisher Oxford University Press (OUP)
Peer Reviewed Peer Reviewed
Volume 94
Issue 6Suppl
Article Number 1980S-1985S
Institution Citation Poston, L., Igosheva, N., Mistry, H. D., Seed, P. T., Shennan, A. H., Rana, S., …Chappell, L. C. (2011). The role of oxidative stress and antioxidant supplementation in pregnancy disorders. American Journal of Clinical Nutrition, 94(6Suppl), doi:10.3945/ajcn.110.001156
DOI https://doi.org/10.3945/ajcn.110.001156
Publisher URL http://ajcn.nutrition.org/content/94/6_Suppl/1980S
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingh.../end_user_agreement.pdf

Files

Poston AJCN review - 44262.pdf (273 Kb)
PDF

Copyright Statement
Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf




Downloadable Citations