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Updated: Aug 19, 2026

Free Radicals in Chemical Biology: from Chemical Behavior to Biomarker Development
Published on: April 15, 2013
Free radicals and diseases in premature infants
Donough J O'Donovan1, Caraciolo J Fernandes
1Department of Pediatrics, Baylor College of Medicine, Houston, TX 77030, USA. donougho@bcm.tmc.edu
Insights
Free radicals contribute to neonatal diseases in premature infants. Further research is needed to understand their role and develop effective therapies for these oxidant injuries.
Area of Science:
- Neonatal Medicine
- Oxidative Stress Research
- Pediatric Pathology
Background:
- Free radicals are implicated in numerous human diseases.
- Premature infants are uniquely susceptible to oxidant injury due to developmental immaturity.
- Neonatal conditions like bronchopulmonary dysplasia and necrotizing enterocolitis are linked to free radical damage.
Purpose of the Study:
- To determine the role of free radicals in neonatal diseases.
- To explore the pathogenesis of oxidant injury in premature infants.
- To inform the development of therapies targeting free radical damage.
Main Methods:
- Review of existing literature on free radical-mediated neonatal diseases.
- Analysis of the unique sensitivity of premature infants to oxygen-rich environments.
- Correlation of specific neonatal morbidities with cellular and tissue injury from free radicals.
Main Results:
- Free radical-mediated cell and tissue injury is a significant factor in neonatal diseases.
- Premature infants exhibit heightened vulnerability to oxidative stress.
- Established links between free radicals and conditions such as bronchopulmonary dysplasia, periventricular leukomalacia, intraventricular hemorrhage, retinopathy of prematurity, and necrotizing enterocolitis.
Conclusions:
- Free radicals play a critical role in the pathogenesis of various neonatal diseases.
- Understanding oxidant injury mechanisms is crucial for premature infant health.
- Further investigation is warranted to develop targeted therapies against free radical damage in neonates.
Abstract:
Free radicals have been implicated in the pathogenesis of a wide spectrum of human diseases. Premature infants are probably developmentally unprepared for extrauterine life in an oxygen-rich environment and exhibit a unique sensitivity to oxidant injury. Diseases associated with premature infants, including bronchopulmonary dysplasia, periventricular leukomalacia, intraventricular hemorrhage, retinopathy of prematurity, and necrotizing enterocolitis, have been linked to free radical-mediated cell and tissue injury. With the advent of therapies designed to combat the injurious effects of free radicals, the role of these highly reactive chemical molecules in the pathogenesis of neonatal diseases needs to be fully determined.
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