Maternal antioxidant status in early pregnancy and development of fetal complications in twin pregnancies: a pilot study
Twin pregnancies are increasing due to the rise in mothers’ childbearing age and have a higher risk of fetal growth restriction (FGR) and prematurity. Therefore, early prediction of these events is important. Our aim was to analyze in the first trimester of pregnancy a possible association between antioxidants, including melatonin, in maternal plasma and the development of fetal complications in twin pregnancies. A single-center, prospective, and observational study was performed in 104 twin-pregnant women. A blood sample was extracted between the 9th and the 11th week of gestation, and plasma was obtained. Antioxidants (thiols, reduced glutathione, phenolic compounds, catalase, superoxide dismutase) and oxidative damage biomarkers (carbonyl groups and malondialdehyde) were assessed by spectrophotometry, and global scores were calculated from these parameters (Antiox-S, Prooxy-S). Melatonin and cortisol were evaluated by a competitive immunoassay. In the first trimester of pregnancy, Antiox-S was significantly lower in women who developed FGR compared to those with normal fetal growth; plasma melatonin was significantly lower in women with preterm compared to those with full-term births and exhibited a positive correlation with birth weight. Maternal cortisol showed a negative correlation with birth weight. We conclude that, for twin gestations, maternal plasma antioxidant status and melatonin could be potential biomarkers to be included in algorithms to predict FGR and preterm labor.
Main Authors: | Ramiro-Cortijo, David, Calle, María de la, Rodríguez-Rodríguez, Pilar, López de Pablo, Ángel L., López-Giménez, María R., Aguilera, Yolanda, Martín-Cabrejas, María A., González, María del Carmen, Arribas, Silvia M. |
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Other Authors: | Ministerio de Economía y Competitividad (España) |
Format: | artículo biblioteca |
Language: | English |
Published: |
Multidisciplinary Digital Publishing Institute
2020
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Subjects: | Melatonin, Twin gestations, Antioxidants, Prematurity, Cortisol, FGR, |
Online Access: | http://hdl.handle.net/10261/220156 http://dx.doi.org/10.13039/501100004593 http://dx.doi.org/10.13039/501100003329 |
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