Document Detail


Effect of reduced maternal protein intake in pregnancy in the rat on the fatty acid composition of brain, liver, plasma, heart and lung phospholipids of the offspring after weaning.
MedLine Citation:
PMID:  12908895     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Reduced protein intake during pregnancy decreased maternal hepatic and plasma docosahexaenoic acid concentrations and impaired docosahexaenoic acid accumulation into fetal brain in the rat. The present study investigated whether restriction of maternal protein intake during pregnancy in the rat alters membrane phospholipid fatty acid composition in the offspring after weaning. Female rats (six per group) were mated and fed diets containing either 180 or 90 g protein/kg throughout pregnancy. Mothers were transferred to standard chow after delivery and the litters reduced to eight pups. Weaning was at 28 d and pups were killed 5 to 6 d later. Tissue weights or membrane total phosphatidylcholine (PC) and phosphatidylethanolamine (PE) concentrations in the offspring did not differ between dietary groups. There were significant differences between the 180 and 90 g/kg groups in liver, brain, lung and heart fatty acid composition that differed between tissues and phospholipid classes. For example, docosahexaenoic and arachidonic acid concentrations were 23 and 10 % lower respectively in hepatic PC, but not PE, in the 90 g/kg group. In brain, docosahexaenoic acid concentration was 17 % lower in PC, but not PE, while arachidonic acid content was 21 % greater in PE but unchanged in PC. The greatest differences were in unsaturated fatty acids, which suggests alterations to desaturase activities and/or the specificity of phospholipid biosynthesis. These results suggest that restricted maternal protein intake during pregnancy results in persistent alterations to membrane fatty acid content.
Authors:
Graham C Burdge; Emmanuelle Delange; Ludivine Dubois; Rebecca L Dunn; Mark A Hanson; Alan A Jackson; Philip C Calder
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The British journal of nutrition     Volume:  90     ISSN:  0007-1145     ISO Abbreviation:  Br. J. Nutr.     Publication Date:  2003 Aug 
Date Detail:
Created Date:  2003-08-11     Completed Date:  2003-09-15     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  0372547     Medline TA:  Br J Nutr     Country:  England    
Other Details:
Languages:  eng     Pagination:  345-52     Citation Subset:  IM    
Affiliation:
Institute of Human Nutrition, Biomedical Sciences Building (62), University of Southampton, Bassett Crescent East, Southampton SO16 7PX, UK. g.c.burdge@soton.ac.uk
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MeSH Terms
Descriptor/Qualifier:
Animals
Brain / metabolism
Cell Membrane / metabolism
Dietary Proteins / administration & dosage*,  metabolism
Fatty Acids / analysis*,  blood
Fatty Acids, Monounsaturated / analysis
Fatty Acids, Unsaturated / analysis
Female
Linoleic Acid / analysis
Liver / metabolism
Lung / metabolism
Myocardium / metabolism
Phosphatidylcholines / analysis
Phosphatidylethanolamines / analysis
Phospholipids / analysis*
Pregnancy
Rats
Rats, Wistar
Weaning
Chemical
Reg. No./Substance:
0/Dietary Proteins; 0/Fatty Acids; 0/Fatty Acids, Monounsaturated; 0/Fatty Acids, Unsaturated; 0/Phosphatidylcholines; 0/Phosphatidylethanolamines; 0/Phospholipids; 2091-29-4/palmitoleic acid; 2197-37-7/Linoleic Acid

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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