Abstract:
INTRODUCTION:Lipid peroxidation products are present following oxidation of polyunsaturated fatty acids in the eye, brain, and various cell membranes. Elevated levels of lipid peroxidation products and increased intermittent hypoxemia (IH) events have been associated with adverse outcomes in extremely preterm infants. The moderate preterm newborn has a still-developing oxidant defense system and immature respiratory control, but little is known about lipid peroxidation levels and IH in this larger and more common preterm population. OBJECTIVE:To determine the association between oxidative stress and IH in moderate preterm infants. METHOD:Oxygen saturation was continuously monitored in 51 moderate preterm infants (i.e., 31 + 0/7 to 33 + 6/7 weeks' gestation). Urine samples were collected at the end of the first and second weeks of life. Samples were analyzed for total lipid peroxidation products (neurofurans, isofurans, neuroprostanes, isoprostanes, and di-homo-isofurans). RESULT:At week 1, there was a correlation between increased IH frequency and neurofurans (p < 0.04) and di-homo-isofurans (p < 0.003). At week 2, there was no correlation between IH and lipid peroxidation markers. Ele-vations in neurofurans, isofurans, neuroprostanes, and di-homo-isofurans in the first and/or second week of life were associated with a longer stay in hospital. CONCLUSION:Elevations in lipid peroxidation biomarkers in moderate preterm infants during their first weeks of life are associated with a higher frequency of IH and prolonged hospitalization.
journal_name
Neonatologyjournal_title
Neonatologyauthors
Shah VP,Raffay TM,Martin RJ,Vento M,Sánchez-Illana Á,Piñeiro-Ramos JD,Kuligowski J,Di Fiore JMdoi
10.1159/000509038subject
Has Abstractpub_date
2020-01-01 00:00:00pages
577-583issue
5eissn
1661-7800issn
1661-7819pii
000509038journal_volume
117pub_type
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