Abstract
To estimate the levels of malondialdehyde (MDA) and 8-hydroxy-2-deoxyguanosine (8-OH-dG) in cord blood plasma of newborns born through meconium-stained amniotic fluid (MSAF) and also to find out the correlation between their levels with birth weight and gestation, we measured the cord blood plasma levels of MDA and 8-OH-dG in 59 newborns born through MSAF and 50 newborns born through clear liquor. The levels of cord blood plasma MDA and 8-OH-dG were significantly higher in full-term and late-preterm newborns born through MSAF. On further comparison, it was found that both full-term and late-preterm intrauterine growth restricted (IUGR) neonates had higher levels of these markers as compared to babies born as appropriate for gestational age (AGA) through MSAF. Plasma levels of MDA and 8-OH-dG were significantly correlated with birth weight even after controlling the relationship with gestational age for all cases as well as all full-term cases. These markers are also significantly correlated to each other.
Conclusions: The present study suggest that the neonates born through MSAF experience higher degrees of oxidative stress, as evidenced by increased levels of cord blood plasma MDA and 8-OH-dG.
What is known: • Aspirated meconium has been found to induce free radical generation and cellular damage in animal studies. • Its role in free radical generation and oxidative damage in human neonates is scarce. |
What is new: • Neonates born through meconium-stained amniotic fluid experience significant oxidative stress. |
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Abbreviations
- 8-OH-dG:
-
8-Hydroxy-2-deoxyguanosine
- AGA:
-
Appropriate for gestational age
- IUGR:
-
Intrauterine growth retardation
- MAS:
-
Meconium aspiration syndrome
- MDA:
-
Malondialdehyde
- MSAF:
-
Meconium-stained amniotic fluid
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Bandyopadhyay, T., Bhatia, B.D. & Khanna, H.D. A study of oxidative stress in neonates delivered through meconium-stained amniotic fluid. Eur J Pediatr 176, 317–325 (2017). https://doi.org/10.1007/s00431-016-2845-0
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DOI: https://doi.org/10.1007/s00431-016-2845-0