Document Detail


Iron retention from lactoferrin-supplemented formulas in infant rhesus monkeys.
MedLine Citation:
PMID:  2314947     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Iron absorption from human milk and infant formula has received much attention, but experimental design problems have been common. In our study, iron retention from human milk, milk-based infant formula (IF) with and without supplemental ferrous sulfate, and IF supplemented with either human or bovine lactoferrin (Lf) was evaluated in infant rhesus monkeys. The exchange of 59Fe (III) Cl3 between the whey, casein, and fat fractions required up to 72 h to reach the same distribution as intrinsic iron, depending on the type of diet. Infant monkeys were intubated with labeled human milk or IF and counted in a whole body counter. Each infant received all five diets and was also intubated with a reference dose of 55Fe (II) ascorbate. There was no significant difference in iron retention (mean +/- SEM) from the experimental diets: human milk 32.5 +/- 5.1%; IF 32.1 +/- 8.0%; IF + Fe 23.0 +/- 3.9%; IF + human Lf 23.5 +/- 3.3%; IF + bovine Lf 22.7 +/- 4.9%. Therefore, infant monkeys absorb and retain iron similarly from human milk and infant formula. Supplementation of infant formula with human or bovine Lf resulted in similar iron retention to that of ferrous sulfate-supplemented infant formula.
Authors:
L A Davidson; R E Litov; B Lönnerdal
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Pediatric research     Volume:  27     ISSN:  0031-3998     ISO Abbreviation:  Pediatr. Res.     Publication Date:  1990 Feb 
Date Detail:
Created Date:  1990-04-13     Completed Date:  1990-04-13     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0100714     Medline TA:  Pediatr Res     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  176-80     Citation Subset:  IM    
Affiliation:
Department of Nutrition, University of California, Davis.
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MeSH Terms
Descriptor/Qualifier:
Animals
Animals, Suckling
Biological Availability
Infant Food*
Intestinal Absorption
Iron / pharmacokinetics*
Lactoferrin / administration & dosage*
Lactoglobulins / administration & dosage*
Macaca mulatta
Milk, Human / metabolism*
Chemical
Reg. No./Substance:
0/Lactoferrin; 0/Lactoglobulins; 7439-89-6/Iron

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


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