Document Detail


Formula feeding potentiates docosahexaenoic and arachidonic acid biosynthesis in term and preterm baboon neonates.
MedLine Citation:
PMID:  14523049     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Infant formulas supplemented with docosahexaenoic acid (DHA) and arachidonic acid (ARA) are now available in the United States; however, little is known about the factors that affect biosynthesis. Baboon neonates were assigned to one of four treatments: term, breast-fed; term, formula-fed; preterm (155 of 182 days gestation), formula-fed; and preterm, formula+DHA/ARA-fed. Standard formula had no DHA/ARA; supplemented formula had 0.61%wt DHA (0.3% of calories) and 1.21%wt ARA (0.6% of calories), and baboon breast milk contained 0.68 +/- 0.22%wt DHA and 0.62 +/- 0.12%wt ARA. At 14 days adjusted age, neonates received a combined oral dose of [U-13C]alpha-linolenic acid (LNA*) and [U-13C]linoleic acid (LA*), and tissues were analyzed 14 days after dose. Brain accretion of linolenic acid-derived DHA was approximately 3-fold greater for the formula groups than for the breast-fed group, and dietary DHA partially attenuated excess DHA synthesis among preterms. A similar, significant pattern was found in other organs. Brain linoleic acid-derived ARA accretion was significantly greater in the unsupplemented term group but not in the preterm groups compared with the breast-fed group. These data show that formula potentiates the biosynthesis/accretion of DHA/ARA in term and preterm neonates compared with breast-fed neonates and that the inclusion of DHA/ARA in preterm formula partially restores DHA/ARA biosynthesis to lower, breast-fed levels. Current formula DHA concentrations are inadequate to normalize long-chain polyunsaturated fatty acids synthesis to that of breast-fed levels.
Authors:
Eszter Sarkadi-Nagy; Vasuki Wijendran; Guan Yeu Diau; Angela Chueh Chao; Andrea T Hsieh; Anu Turpeinen; Peter Lawrence; Peter W Nathanielsz; J Thomas Brenna
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Publication Detail:
Type:  Journal Article; Research Support, U.S. Gov't, P.H.S.     Date:  2003-10-01
Journal Detail:
Title:  Journal of lipid research     Volume:  45     ISSN:  0022-2275     ISO Abbreviation:  J. Lipid Res.     Publication Date:  2004 Jan 
Date Detail:
Created Date:  2004-01-26     Completed Date:  2004-09-03     Revised Date:  2007-11-14    
Medline Journal Info:
Nlm Unique ID:  0376606     Medline TA:  J Lipid Res     Country:  United States    
Other Details:
Languages:  eng     Pagination:  71-80     Citation Subset:  IM    
Affiliation:
Division of Nutritional Sciences, Savage Hall, Cornell University, Ithaca, NY 14853.
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MeSH Terms
Descriptor/Qualifier:
Animal Feed*
Animals
Animals, Newborn / metabolism*
Arachidonic Acid / biosynthesis*
Body Weight
Brain / metabolism
Docosahexaenoic Acids / metabolism*
Erythrocytes / metabolism
Female
Gestational Age*
Infant Formula / pharmacology*
Linear Models
Liver / metabolism
Male
Organ Size
Papio / physiology*
Time Factors
Grant Support
ID/Acronym/Agency:
EY-10208/EY/NEI NIH HHS
Chemical
Reg. No./Substance:
25167-62-8/Docosahexaenoic Acids; 506-32-1/Arachidonic Acid

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


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