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Lipid peroxidation and antioxidant activity in complicated pregnancies

S B Patil1, M V Kodliwadmath, M Kodliwadmath

  • 1Department of Biochemistry, J.N. Medical College Nehru, Karnataka, India. sanrum03@yahoo.co.in

Clinical and Experimental Obstetrics & Gynecology
|August 20, 2009
PubMed

Insights

Preeclampsia and eclampsia show increased lipid peroxidation and decreased antioxidant levels. This suggests oxidative stress contributes to these severe pregnancy complications.

Area of Science:

  • Obstetrics and Gynecology
  • Biochemistry
  • Pathophysiology

Background:

  • Preeclampsia and eclampsia are severe pregnancy complications.
  • Lipid peroxidation may cause vascular endothelial cell dysfunction, contributing to preeclampsia/eclampsia pathophysiology.
  • Antioxidants mitigate lipid peroxidation.

Purpose of the Study:

  • To investigate if antioxidant protective mechanisms are diminished in women with preeclampsia and eclampsia.
  • To explore the role of lipid peroxidation in preeclampsia and eclampsia.

Main Methods:

  • Assayed lipid peroxidation and antioxidant markers in four groups: non-pregnant women, normal pregnant women, preeclamptic patients, and eclamptic patients.
  • Utilized standard spectrophotometer methods for analysis.
  • Included 25 participants in each group.

Main Results:

  • Malondialdehyde, a lipid peroxidation product, was significantly increased in preeclampsia and eclampsia.
  • Enzymatic antioxidants (superoxide dismutase, glutathione peroxidase, glutathione reductase, catalase) were significantly reduced in preeclampsia and eclampsia compared to controls.
  • These findings were observed in the third trimester of pregnancy.

Conclusions:

  • Lipid peroxidation plays a significant role in the pathogenesis of preeclampsia and eclampsia.
  • Reduced antioxidant levels in preeclampsia and eclampsia may be a compensatory response to increased lipid peroxide load.
  • The observed changes may indicate disease severity.
Abstract

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