Document Detail

Enhanced circulating retinol and non-esterified fatty acids in pregnancies complicated with intrauterine growth restriction.
MedLine Citation:
PMID:  19656084     Owner:  NLM     Status:  MEDLINE    
IUGR (intrauterine growth restriction) increases the incidence of perinatal complications and, although several placental transport functions have been shown to be altered in pregnancies complicated by IUGR, the mechanism behind it is not well understood. The aim of the present study was to investigate factors in maternal and cord blood plasma from normal and IUGR-complicated pregnancies associated with the body weight of newborns. At the time of Caesarean section, 24 women with IUGR pregnancies were compared with a group of 30 normal controls with AGA (appropriate gestational age) fetuses who were studied at Caesarean section, which took place 5 weeks later than IUGR pregnancies, and also to a group of 25 non-delivered gestational age-matched control pregnant women (AGA-35wk). Maternal plasma retinol, gamma- and alpha-tocopherol, NEFAs (non-esterified fatty acids), and palmitic, palmitoleic, gamma-linolenic and arachidonic acids were higher in women with IUGR pregnancies than in AGA-35wk controls, whereas stearic and alpha-linolenic acids were lower. Smaller differences were found when comparing these variables for IUGR and AGA women. However, umbilical vein plasma gamma-tocopherol, cholesterol, triacylglycerols and NEFAs were higher in the IUGR group than in the AGA group, whereas arachidonic acid was lower. Maternal plasma retinol and NEFAs were the only variables negatively correlated with birthweight when multiple linear regressions were analysed. In conclusion, the increased levels of circulating retinol and NEFAs in maternal plasma are negatively associated with birth and placental weights, which may reflect an impaired placental transfer in IUGR pregnancies. As retinoids are involved in the control of gene transcription, it is proposed that a decrease in placental transfer of retinol could underlie the metabolic dysfunction of IUGR pregnancies.
Henar Ortega-Senovilla; Gioia Alvino; Emanuela Taricco; Irene Cetin; Emilio Herrera
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2009-11-23
Journal Detail:
Title:  Clinical science (London, England : 1979)     Volume:  118     ISSN:  1470-8736     ISO Abbreviation:  Clin. Sci.     Publication Date:  2010 Mar 
Date Detail:
Created Date:  2009-11-20     Completed Date:  2010-02-22     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7905731     Medline TA:  Clin Sci (Lond)     Country:  England    
Other Details:
Languages:  eng     Pagination:  351-8     Citation Subset:  IM    
Department of Biochemistry, Molecular Biology and Cell Biology, Faculties of Pharmacy and Medicine, Universidad San Pablo-CEU, E-28668 Madrid, Spain.
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MeSH Terms
Birth Weight / physiology
Body Mass Index
Cesarean Section
Fatty Acids, Nonesterified / blood*
Fetal Blood / metabolism
Fetal Growth Retardation / blood*
Infant, Newborn
Lipids / blood
Maternal-Fetal Exchange
Organ Size / physiology
Placenta / pathology
Retrospective Studies
Umbilical Veins / metabolism
Vitamin A / blood*
Reg. No./Substance:
0/Fatty Acids, Nonesterified; 0/Lipids; 11103-57-4/Vitamin A

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