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Year: 2009 Volume: 51 Issue: 1

Year: 2008 Volume: 50

Year: 2001 Volume: 43

Anti-oxidant enzymes and related elements in term and preterm newborns.

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Nassi, Niccolò Ponziani, Vanessa Becatti, Matteo Galvan, Paola Donzelli, Gianpaolo
Description	Author Affiliation: Nassi N ( Department of Paediatrics, University of Florence, Florence, Italy. nassi@scibio.unifi .it)
Abstract	BACKGROUND: Although oxidative stress-related diseases mostly affect neonates with extremely low birthweight, healthy preterm newborns might also be at risk of oxidative damages. The aim of the present study was to verify this possibility. METHODS: Urinary 8-hydroxy-2'-deoxyguanosine (8-OHdG), erythrocyte glutathione peroxidase (GSHPx) and superoxide dismutase (SOD), plasma and erythrocyte concentrations of selenium, zinc and copper were measured until 100 days of life in 30 preterm infants with mean +/- SD birthweight and gestational age of 1605 +/- 122 g and 34.5 +/- 0.5 weeks. The control group included 30 term infants with birthweight 3123 158 g and gestational age 39.6 0.7 weeks. RESULTS: Throughout the study period urinary 8-OHdG, taken as a marker of oxidative stress, was significantly higher in the preterm than in the term group. Up until 20 days of life, GSHPx activity was significantly lower in the preterm than in the term infants but this was not associated with any apparent selenium deficiency. Conversely, up until 100 days, preterm infants had significantly reduced SOD levels that appeared to reflect a shortage of the elements needed for this enzyme's activity, notably copper, the plasma concentrations of which were constantly and significantly below the control values. CONCLUSION: The nutritional status of the elements related to the anti-oxidant enzymes, especially zinc and copper, should be carefully assessed in preterm infants, even if their birthweight is not extremely low.
File Format	HTM / HTML
ISSN	13288067
Issue Number	2
Volume Number	51
e-ISSN	1442200X
Journal	Pediatrics International
Language	English
Publisher	Wiley
Publisher Date	2009-04-01
Publisher Place	Australia
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Discipline Pediatrics Deoxyguanosine Analogs & Derivatives Infant, Premature Physiology Oxidative Stress Birth Weight Copper Analysis Urine Erythrocytes Chemistry Enzymology Glutathione Peroxidase Humans Infant, Newborn Nutritional Status Selenium Blood Superoxide Dismutase Trace Elements Zinc Journal Article
Content Type	Text
Resource Type	Article
Subject	Pediatrics, Perinatology and Child Health

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