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Updated: Nov 4, 2025
Biochemical Measurement of Neonatal Hypoxia
Published on: August 24, 2011
Oxidative stress biomarkers in the preterm infant
Ángel Sánchez-Illana1, José David Piñeiro-Ramos1, Victoria Ramos-Garcia1
1Health Research Institute La Fe, Valencia, Spain; Maternal & Child Health and Development Research Network-Red SAMID Health Research, Spain.
Insights
Assessing oxidative stress (OS) in preterm infants is challenging due to varied analytical methods. This chapter reviews approaches for studying OS biomarkers in prematurity, aiding clinical interpretation.
Area of Science:
- Neonatal Medicine
- Biochemistry
- Analytical Chemistry
Background:
- Oxidative stress (OS) is integral to preterm infant pathophysiology.
- Accurate OS assessment in preterm neonates presents significant analytical challenges.
- Numerous methods exist to evaluate OS biomarkers in preterm biofluids.
Purpose of the Study:
- To review current methodologies for studying OS in preterm infants.
- To discuss the metabolic origins and clinical relevance of OS biomarkers.
- To address the analytical challenges and lack of standardization in OS assessment.
Main Methods:
- Review of analytical approaches for OS biomarker detection in preterm biofluids.
- Discussion of methodologic considerations for OS assessment.
- Analysis of the metabolic sources of various OS biomarkers.
Main Results:
- A wide array of analytical methods are available for OS assessment in prematurity.
- Lack of standardization across methods hinders reliable biomarker comparison.
- Understanding biomarker sources is crucial for clinical application.
Conclusions:
- Standardization of analytical methods is critical for reliable OS biomarker evaluation in preterm infants.
- Methodologic considerations and biomarker origins impact clinical study interpretation.
- Improved OS assessment can advance the understanding and management of preterm pathophysiology.
Abstract:
Oxidative stress (OS) plays a key role in the pathophysiology of preterm infants. Accurate assessment of OS remains an analytical challenge that has been partially addressed during the last few decades. A plethora of approaches have been developed to assess preterm biofluids to demonstrate a link postnatally with preterm OS, giving rise to a set of widely employed biomarkers. However, the vast number of different analytic methods and lack of standardization hampers reliable comparison of OS-related biomarkers. In this chapter, we discuss approaches for the study of OS in prematurity with respect to methodologic considerations, the metabolic source of different biomarkers and their role in clinical studies.
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