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KMID : 0358420140570020109
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Korean Journal of Obstetrics and Gynecology
2014 Volume.57 No. 2 p.109 ~ p.114
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Comparison of oxidative stress markers in umbilical cord blood after vaginal and cesarean delivery
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Noh Eun-Ji
Kim Yoon-Ha
Cho Moon-Kyoung
Kim Jong-Woon
Kim Jin-Wook
Byun Yeung-Ja
Song Tae-Bok
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Abstract
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Objective: The purpose of our study was to investigate the effect of the mode of delivery on the oxidant and antioxidant system in umbilical cord blood.
Methods: We performed gas analysis of umbilical venous blood and umbilical arterial blood immediately after delivery in 38 women; eighteen women had a vaginal delivery while 20 women delivered via cesarean section at over 37 weeks gestation. We examined lipid peroxide concentration by thiobarbituric acid reaction, protein carbonyl content by 2,4-dinitrophenylhydrazine reaction, and total antioxidant capacity by oxygen radical absorbance capacity assay.
Results: Lipid peroxide levels in umbilical venous blood were significantly higher in patients delivering by planned cesarean section (1.81 ± 0.06 nmol/mg protein) than those with vaginal delivery (1.24 ± 0.05 nmol/mg protein) (P < 0.05). Antioxidant capacity in umbilical venous blood was significantly higher in patients delivering by planned cesarean section (119.70 ± 0.13 μM/μL) than those with a vaginal delivery (118.70 ± 0.29 μM/μL) (P < 0.05). There was no significant difference in the carbonyl content of umbilical venous blood or in the lipid peroxide, carbonyl content, and total antioxidant capacity of umbilical arterial blood.
Conclusion: Lipid peroxidation levels and antioxidant capacity in umbilical venous blood were higher in patients delivering by planned cesarean section than those with a vaginal delivery. Therefore, we propose that both the mother and neonate are exposed to higher oxidative stress during cesarean section delivery.
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KEYWORD
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Cesarean delivery, Oxidative stress marker, Vaginal delivery
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