Abstract
Background:
Gender is a crucial determinant of life span, but little is known about gender differences in free radical homeostasis and inflammatory signaling. The aim of the study was to determine gender-related differences concerning oxidative stress and inflammatory signaling of healthy neonates and mothers.
Methods:
Fifty-six mothers with normal gestational course and spontaneous delivery were selected. Blood samples were collected from the mother (at the beginning of delivery and start of expulsive period) and from neonate (from umbilical cord vein and artery).
Results:
The mothers of girls featured a higher total antioxidant status and lower plasma hydroperoxides than the mother of boys. Regarding the neonates, the girls featured a higher total antioxidant status and lower plasma membrane hydroperoxides in umbilical cord artery together with higher catalase, glutathione peroxidase, and superoxide dismutase activities. Lower levels of interleukin 6, tumor necrosis factor alpha, and prostaglandin E2 were observed in the mothers of girls and higher level of soluble tumor necrosis factor receptor II. In the neonates, lower levels of interleukin 6 and tumor necrosis factor alpha were observed in umbilical artery and higher soluble tumor necrosis factor receptor II in umbilical cord vein and artery of girls.
Conclusion:
An association between gender, oxidative stress, and inflammation signaling exists, leading to a renewed interest in the neonate’s sex as a potential risk factor to several alterations.
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Acknowledgements
The authors are grateful to Jesús Florido Navío and Luis Navarrete López-Cozar for their continuous support and help during the study.
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Diaz-Castro, J., Pulido-Moran, M., Moreno-Fernandez, J. et al. Gender specific differences in oxidative stress and inflammatory signaling in healthy term neonates and their mothers. Pediatr Res 80, 595–601 (2016). https://doi.org/10.1038/pr.2016.112
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DOI: https://doi.org/10.1038/pr.2016.112
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