| Literature DB >> 20452844 |
Alan H Jobe1, Suhas G Kallapur.
Abstract
Preterm and term infants are frequently exposed to high concentrations of oxygen for prolonged periods. In experimental models, high and prolonged oxygen exposures cause delayed alveolar septation and a bronchopulmonary dysplasia phenotype. Often, however, the oxygen exposure is tolerated in that the infants recover without severe lung or systemic injury. Multiple exposures change oxygen sensitivity in adult and newborn animals. Examples are antenatal corticosteroids, inflammatory mediators or preconditioning with oxygen, which will increase tolerance to oxygen injury. Intrauterine growth restriction or postnatal nutritional deficits will increase oxygen injury. Different infants probably have quite variable sensitivities to oxygen injury, but there are no biomarkers available to predict the risk of oxygen injury. Copyright 2010 Elsevier Ltd. All rights reserved.Entities:
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Year: 2010 PMID: 20452844 PMCID: PMC2910185 DOI: 10.1016/j.siny.2010.03.007
Source DB: PubMed Journal: Semin Fetal Neonatal Med ISSN: 1744-165X Impact factor: 3.926