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Breath pentane as a marker for lipid peroxidation and adverse outcome in preterm infants
Insights
Breath pentane, a marker of lipid peroxidation, is linked to neonatal intensive care complications like mortality and intraventricular hemorrhage in preterm infants. This suggests free radical activity may worsen neonatal disease severity.
Area of Science:
- Neonatal Medicine
- Biochemistry
- Free Radical Biology
Background:
- Neonatal intensive care complications are a significant concern.
- Oxygen-derived free radicals are implicated in cellular damage.
- Lipid peroxidation is a marker of oxidative stress.
Purpose of the Study:
- To investigate the relationship between oxygen-derived free radical activity and neonatal intensive care complications.
- To utilize breath pentane as a biomarker for lipid peroxidation in ventilated preterm infants.
Main Methods:
- Daily collection of exhaled breath from 57 ventilated preterm infants.
- Quantification of pentane concentration using gas chromatography.
Main Results:
- Elevated peak pentane exhalation showed significant association with lower gestational age, mortality, intraventricular hemorrhage, and retinopathy of prematurity.
- No significant association was found between peak pentane levels and the development of chronic lung disease.
Conclusions:
- Pentane exhalation correlates with the clinical course and outcomes of neonatal diseases, supporting the hypothesis of lipid peroxidation involvement.
- Findings suggest that lipid peroxidation may contribute to the severity of these neonatal illnesses.
- Breath pentane measurement could aid in evaluating antioxidant therapies for neonatal conditions.
Aim:
To test the hypothesis that complications of neonatal intensive care are related to increased oxygen derived free radical activity, using breath pentane as a marker of lipid peroxidation.
Methods:
Exhaled breath was collected daily from 57 ventilated preterm infants and pentane concentration measured by gas chromatography.
Results:
High peak pentane exhalation was significantly associated with low gestational age, mortality, intraventricular haemorrhage and retinopathy of prematurity. Peak pentane was not significantly associated with the development of chronic lung disease.
Conclusions:
The demonstration that pentane exhalation is related to the course of neonatal disease and its outcome is consistent with the hypothesis that lipid peroxidation is associated with these illnesses, and may contribute to their severity. If this is a causal relation, antioxidant treatments could prove useful in reducing their severity. Measurement of breath pentane might assist in the assessment of antioxidant strategies prior to more extensive clinical trials.