Document Detail

Leptin levels in rat offspring are modified by the ratio of linoleic to alpha-linolenic acid in the maternal diet.
MedLine Citation:
PMID:  12364559     Owner:  NLM     Status:  MEDLINE    
The supply of polyunsaturated fatty acids (PUFA) is important for optimal fetal and postnatal development. We have previously shown that leptin levels in suckling rats are reduced by maternal PUFA deficiency. In the present study, we evaluated the effect of maternal dietary intake of (n-3) and (n-6) PUFA on the leptin content in rat milk and serum leptin levels in suckling pups. For the last 10 days of gestation and throughout lactation, the rats were fed an isocaloric diet containing 7% linseed oil (n-3 diet), sunflower oil (n-6 diet), or soybean oil (n-6/n-3 diet). Body weight, body length, inguinal fat pad weight, and adipocyte size of the pups receiving the n-3 diet were significantly lower during the whole suckling period compared with n-6/n-3 fed pups. Body and fat pad weights of the n-6 fed pups were in between the other two groups at week one, but not different from the n-6/n-3 group at week 3. Feeding dams the n-3 diet resulted in decreased serum leptin levels in the suckling pups compared with pups in the n-6/n-3 group. The mean serum leptin levels of the n-6 pups were between the other two groups but not different from either group. There were no differences in the milk leptin content between the groups. These results show that the balance between the n-6 and n-3 PUFA in the maternal diet rather than amount of n-6 or n-3 PUFA per se could be important for adipose tissue growth and for maintaining adequate serum leptin levels in the offspring.
Marina Korotkova; Britt Gabrielsson; Malin Lönn; Lars-Ake Hanson; Brigitta Strandvik
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of lipid research     Volume:  43     ISSN:  0022-2275     ISO Abbreviation:  J. Lipid Res.     Publication Date:  2002 Oct 
Date Detail:
Created Date:  2002-10-04     Completed Date:  2003-03-20     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  0376606     Medline TA:  J Lipid Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1743-9     Citation Subset:  IM    
Departments of Pediatrics, Research Centre for Endocrinology and Metabolism, Göteborg University, Sweden.
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MeSH Terms
Adipocytes / cytology
Adipose Tissue / chemistry,  metabolism
Analysis of Variance
Animals, Suckling / blood
Body Weight
Dietary Fats, Unsaturated / administration & dosage*,  classification,  metabolism
Fatty Acids / analysis
Leptin / biosynthesis,  blood*
Linoleic Acid / administration & dosage*
Milk / chemistry
Prenatal Nutritional Physiological Phenomena
RNA, Messenger / biosynthesis
alpha-Linolenic Acid / administration & dosage*
Reg. No./Substance:
0/Dietary Fats, Unsaturated; 0/Fatty Acids; 0/Leptin; 0/RNA, Messenger; 2197-37-7/Linoleic Acid; 463-40-1/alpha-Linolenic Acid

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