Document Detail


Plasma concentrations of vitamin D metabolites in unsupplemented breast-fed infants.
MedLine Citation:
PMID:  6662145     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Plasma concentrations of the vitamin D metabolites 25-hydroxyvitamin D, 1,25-dihydroxyvitamin D, 24,25-dihydroxyvitamin D and 25,26-dihydroxyvitamin D were determined in 12 solely breast-fed infants 4 days and 6 weeks after birth. They were not exposed to sunlight, but the mothers received an average of 600 IU vitamin D2 per day during the study period. The mothers' 25-hydroxyvitamin D levels did not change significantly (medians 42 and 58 nmol/l), but the median level dropped from 26 to 15 nmol/l in the infants (P less than 0.001). There was a close correlation between maternal and infant levels at 4 days (r = 0.95). The babies with the highest initial levels showed the most marked decrease by 6 weeks. The median concentrations of 24,25-dihydroxyvitamin D and 25,26-dihydroxyvitamin D decreased similarly from 1.7 to 0.8 and 0.63 to 0.35 nmol/l respectively, (P less than 0.001). The 1,25-dihydroxyvitamin D levels were within normal limits as were plasma calcium, phosphorus, and alkaline phosphatase. The data suggest that fetal stores of vitamin D may be rapidly depleted, and that breast milk may be inadequate as the only source of vitamin D, even for breast-fed infants of vitamin D-supplemented mothers.
Authors:
T Markestad
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  European journal of pediatrics     Volume:  141     ISSN:  0340-6199     ISO Abbreviation:  Eur. J. Pediatr.     Publication Date:  1983 Dec 
Date Detail:
Created Date:  1984-02-27     Completed Date:  1984-02-27     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7603873     Medline TA:  Eur J Pediatr     Country:  GERMANY, WEST    
Other Details:
Languages:  eng     Pagination:  77-80     Citation Subset:  IM    
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MeSH Terms
Descriptor/Qualifier:
Alkaline Phosphatase / blood
Breast Feeding*
Calcium / blood
Dihydroxycholecalciferols / blood*
Humans
Hydroxycholecalciferols / blood*
Infant
Infant, Newborn
Phosphorus / blood
Protein Binding
Time Factors
Chemical
Reg. No./Substance:
0/Dihydroxycholecalciferols; 0/Hydroxycholecalciferols; 7440-70-2/Calcium; 7723-14-0/Phosphorus; EC 3.1.3.1/Alkaline Phosphatase

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