Document Detail


Correlation between exposure to phthalates and concentrations of malondialdehyde in infants and children undergoing cyclic parenteral nutrition.
MedLine Citation:
PMID:  21527603     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Background: Plasticizers such as di(2-ethylhexyl) phthalate (DEHP) are added to polyvinyl chloride (PVC) to confer flexibility. However, DEHP is associated with reproductive disorders in humans. Because of its noncovalent bond to the PVC matrix, this plasticizer tends to leach easily. Infants and children undergoing cyclic, long-term parenteral nutrition (PN) could be particularly at risk of potential toxicity from DEHP due to regular exposure. Malondialdehyde (MDA) is one of the most commonly used markers of free radical activity. The purpose of this study was to investigate how long-term exposure to phthalate affects the plasmatic rate of MDA. Methods: Studies were performed on 7 randomized infants and children on regular cyclic, long-term PN, and the results were compared with those of 5 nontreated infants. The circulating concentrations of DEHP in children and infants during the PN therapy were measured by high-performance liquid chromatography. The concentrations were assessed before and after the PN session. In the same way, plasma MDA concentrations were measured. Results: The circulating concentrations of DEHP before and after a 10- to 11-hour cyclic PN treatment in 7 infants and children under regular perfusion ranged widely, showing a significant increase after the treatment among all the patients. The same phenomenon observed with the rate of MDA showed that the 2 events are closely dependent. Therefore, long-term exposure to DEHP during cyclic PN raised plasma MDA levels, indicating increased oxidative stress. Conclusion: Long-term exposure to DEHP during PN increased free radical activity in vivo.
Authors:
Nicolas Kambia; Thierry Dine; Bernard Gressier; Bruno Frimat; Jean-Louis Cazin; Michel Luyckx; Claude Brunet; Laurent Michaud; Frédéric Gottrand
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  JPEN. Journal of parenteral and enteral nutrition     Volume:  35     ISSN:  0148-6071     ISO Abbreviation:  JPEN J Parenter Enteral Nutr     Publication Date:    2011 May-Jun
Date Detail:
Created Date:  2011-04-29     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7804134     Medline TA:  JPEN J Parenter Enteral Nutr     Country:  United States    
Other Details:
Languages:  eng     Pagination:  395-401     Citation Subset:  IM    
Affiliation:
Laboratory of Pharmacology, Pharmacokinetic and Clinical Pharmacy, Lille 2 University.
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