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Raffay TM, Di Fiore JM, Chen Z, Sánchez-Illana Á, Vento M, Piñeiro-Ramos JD, Kuligowski J, Martin RJ, Tatsuoka C, Minich NM, MacFarlane PM, Hibbs AM. Hypoxemia events in preterm neonates are associated with urine oxidative biomarkers. Pediatr Res 2023; 94:1444-1450. [PMID: 37188801 DOI: 10.1038/s41390-023-02646-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 04/18/2023] [Accepted: 04/21/2023] [Indexed: 05/17/2023]
Abstract
BACKGROUND Intermittent hypoxemia (IH) events are common in preterm neonates and are associated with adverse outcomes. Animal IH models can induce oxidative stress. We hypothesized that an association exists between IH and elevated peroxidation products in preterm neonates. METHODS Time in hypoxemia, frequency of IH, and duration of IH events were assessed from a prospective cohort of 170 neonates (<31 weeks gestation). Urine was collected at 1 week and 1 month. Samples were analyzed for lipid, protein, and DNA oxidation biomarkers. RESULTS At 1 week, adjusted multiple quantile regression showed positive associations between several hypoxemia parameters with various individual quantiles of isofurans, neurofurans, dihomo-isoprostanes, dihomo-isofurans, and ortho-tyrosine and a negative correlation with dihomo-isoprostanes and meta-tyrosine. At 1 month, positive associations were found between several hypoxemia parameters with quantiles of isoprostanes, dihomo-isoprostanes and dihomo-isofurans and a negative correlation with isoprostanes, isofurans, neuroprostanes, and meta-tyrosine. CONCLUSIONS Preterm neonates experience oxidative damage to lipids, proteins, and DNA that can be analyzed from urine samples. Our single-center data suggest that specific markers of oxidative stress may be related to IH exposure. Future studies are needed to better understand mechanisms and relationships to morbidities of prematurity. IMPACT Hypoxemia events are frequent in preterm infants and are associated with poor outcomes. The mechanisms by which hypoxemia events result in adverse neural and respiratory outcomes may include oxidative stress to lipids, proteins, and DNA. This study begins to explore associations between hypoxemia parameters and products of oxidative stress in preterm infants. Oxidative stress biomarkers may assist in identifying high-risk neonates.
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Affiliation(s)
- Thomas M Raffay
- Department of Pediatrics, Division of Neonatology, University Hospitals Rainbow Babies & Children's Hospital, Case Western Reserve University, Cleveland, OH, USA.
| | - Juliann M Di Fiore
- Department of Pediatrics, Division of Neonatology, University Hospitals Rainbow Babies & Children's Hospital, Case Western Reserve University, Cleveland, OH, USA
| | - Zhengyi Chen
- Department of Population and Quantitative Health Sciences, Case Western Reserve University, Cleveland, OH, USA
| | - Ángel Sánchez-Illana
- Neonatal Research Unit, Health Research Institute La Fe (IISLAFE), Valencia, Spain
- Department of Analytical Chemistry, Universtitat de València, Burjassot, Spain
| | - Maximo Vento
- Neonatal Research Unit, Health Research Institute La Fe (IISLAFE), Valencia, Spain
- Division of Neonatology, University & Polytechnic Hospital La Fe (HULAFE), Valencia, Spain
| | | | - Julia Kuligowski
- Neonatal Research Unit, Health Research Institute La Fe (IISLAFE), Valencia, Spain
| | - Richard J Martin
- Department of Pediatrics, Division of Neonatology, University Hospitals Rainbow Babies & Children's Hospital, Case Western Reserve University, Cleveland, OH, USA
| | | | - Nori M Minich
- Department of Pediatrics, Division of Neonatology, University Hospitals Rainbow Babies & Children's Hospital, Case Western Reserve University, Cleveland, OH, USA
| | - Peter M MacFarlane
- Department of Pediatrics, Division of Neonatology, University Hospitals Rainbow Babies & Children's Hospital, Case Western Reserve University, Cleveland, OH, USA
| | - Anna Maria Hibbs
- Department of Pediatrics, Division of Neonatology, University Hospitals Rainbow Babies & Children's Hospital, Case Western Reserve University, Cleveland, OH, USA
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Kuligowski J, Vento M. Metabolomics, Oxidative, and Nitrosative Stress in the Perinatal Period. Antioxidants (Basel) 2022; 11:antiox11071357. [PMID: 35883848 PMCID: PMC9311970 DOI: 10.3390/antiox11071357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 07/08/2022] [Indexed: 02/01/2023] Open
Abstract
The perinatal period is extremely sensitive to external stimuli, and events that may disturb the equilibrium within the mother–infant dyad might have a substantial short- and long-term impact on the infant’s health and development [...]
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Affiliation(s)
- Julia Kuligowski
- Neonatal Research Group, Health Research Institute La Fe (IISLaFe), 46026 Valencia, Spain;
- Correspondence: ; Tel.: +34-961-246-661
| | - Máximo Vento
- Neonatal Research Group, Health Research Institute La Fe (IISLaFe), 46026 Valencia, Spain;
- Division of Neonatology, University and Polytechnic Hospital La Fe (HULAFE), 46026 Valencia, Spain
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