TABLE 2

Oxidative Stress Biomarkers in Umbilical Cord Veins and Arteries Taken From Both Groups

Early Cord ClampingLate Cord Clamping
Umbilical VeinUmbilical ArteryUmbilical VeinUmbilical Artery
Plasma parameters
 TAS, nmol/mL0.903 ± 0.03**0.962 ± 0.03**1.038 ± 0.03*1.192 ± 0.06
 Plasma hydroperoxides, nmol/mL8.021 ± 0.30*6.752 ± 0.357.739 ± 0.32*6.641 ± 0.44
Erythrocyte parameters
 Erythrocyte cytosol
  CAT, K/sec·mg0.281 ± 0.02*,**0.233 ± 0.01**0.329 ± 0.01*0.289 ± 0.01
  Glutathione peroxidase, U/mg33.79 ± 1.7833.86 ± 1.8131.96 ± 1.1232.40 ± 1.58
  SOD, U/mg218.7 ± 8.79**199.35 ± 11.32**250.1 ± 10.25243.1 ± 9.30
 Membrane hydroperoxides, nmol/mL26.85 ± 1.48*21.77 ± 1.3824.91 ± 1.3023.45 ± 1.32
  • Values are means ± SEM. *Mean values differ between vein and artery within the same group, P < .05. **Mean values differ between groups for either veins or arteries, P < .05.