Aim: To investigate the possible correlation between plasma malondialdehyde and homocysteine concentrations in preeclamptic patients.

Metarial and Methods: Venous blood samples of 40 women, 20 were preeclamptics and 20 were healthy pregnant controls were collected. Plasma malondialdehyde and homocysteine concentrations were measured and the correlation between them was investigated. Mann Whitney U test and Spearman correlation analysis were used for statistical analysis.

Results: Plasma malondialdehyde and homocysteine concentrations were higher in preeclamptic patients (p₁, p₂<0.05) and a positive correlation between these parameters was found (r: 0.77, p<0.01, n: 20).

Conclusion: Our results may put forward some new strategies in the research of etiopathogenesis and treatment of preeclampsia.