Objective: Oxidative stress (OS) is due to a disturbance in the balance between the production of free radicals and antioxidant defense, resulting in a predominance of free radicals over endogenous anti-oxidant defenses. OS may have many causes. Pregnancy, and especially delivery, are associated with increased OS. The relationship between maternal and infant prooxidant-antioxidant balance (PAB) is unclear. Therefore, the aim of the present study was to compare PAB in mother and baby pairs.
Material and methods: This cross-sectional study was conducted in 104 mothers and normal term infants during 2017-2020. PAB was measured in healthy mothers before delivery and in umbilical cord samples after delivery. Data on the infant characteristics including age, gestational age, birth weight, Apgar score, and maternal history including the duration of mother’s education, weight of the last month, and gravidity were collected using a researcher-made questionnaire. The cord and maternal PAB were compared by statistical methods.
Results: In this study, the mean PAB of the neonates and mothers was 30.76 and 214.87 HK, respectively. The results revealed a moderate association between the PAB neonate and maternal PAB before delivery but it was not significant.
Conclusion: Overall, the level of oxidants and antioxidants reduced during pregnancy and before delivery, and it was found that the relative incidence of neonatal PAB increases by increasing maternal PAB.
Keywords: Neonatal PAB; prooxidant-antioxidant balance; mother; delivery; umbilical cord.
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