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Maternal active or passive smoking causes oxidative stress in placental tissue.
MedLine Citation:
PMID:  20981440     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
The aim of this study was to assess the influence of active and passive maternal smoking on placenta total oxidant/antioxidant status in term infants. The levels of cord blood total antioxidant capacity (TAC), total oxidant status (TOS), and oxidative stress index (OSI) were measured in samples of fetal placental tissue, cord blood, and the maternal peripheral blood serum and from 19 mothers who were active smokers, 19 who were passive smokers, and 22 who were nonsmokers (not exposed to active or passive smoking). The pregnancies were between 37 and 40 weeks' gestation, were uncomplicated, and the infants were delivered vaginally. Birth weight and head circumference in the active smokers were significantly (P < 0.001) lower than those in the controls. Placenta, cord blood, and the maternal peripheral TAC levels were significantly lower in the active smokers compared with the controls (P < 0.001), while TOS and OSI levels were significantly higher in the active and passive smokers than in the controls (P < 0.001). A positive significant correlation was found between active maternal smoking and placenta TOS and OSI levels (P < 0.016), and a significant negative correlation was found between number of cigarettes exposed to and birthweight and head circumference (P < 0.05). In conclusion, active or passive maternal smoking is associated with important alterations in oxidant and antioxidant balance in fetal placental tissue and causes potent oxidative stress.
Authors:
Ali Aycicek; Mustafa Varma; Koc Ahmet; Kocyigit Abdurrahim; Ozcan Erel
Publication Detail:
Type:  Journal Article     Date:  2010-10-28
Journal Detail:
Title:  European journal of pediatrics     Volume:  170     ISSN:  1432-1076     ISO Abbreviation:  Eur. J. Pediatr.     Publication Date:  2011 May 
Date Detail:
Created Date:  2011-04-18     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7603873     Medline TA:  Eur J Pediatr     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  645-51     Citation Subset:  IM    
Affiliation:
Medical Faculty Pediatric Hematology Department, Harran University, 63200, Sanliurfa, Turkey, ayciceka@hotmail.com.
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