Document Detail

Low plasma zinc concentrations in young infants with cystic fibrosis.
MedLine Citation:
PMID:  9842040     Owner:  NLM     Status:  MEDLINE    
OBJECTIVES: The purpose of this study was to examine the zinc status of young infants with cystic fibrosis before and after the initiation of pancreatic enzyme therapy.
STUDY DESIGN: Cross-sectional data were obtained for infants with cystic fibrosis identified by newborn screening. Plasma zinc concentrations were measured and analyzed according to enzyme use at the time of the blood draw. On a subgroup of infants, zinc concentrations were determined again after several weeks with enzyme therapy.
RESULTS: Mean (+/-SD) plasma zinc concentration for the infants studied before the initiation of enzyme therapy was 10.4 +/- 2.2 micromol/L (68.3 +/- 14.7 microgram/dL) (n = 48), which was significantly lower than the mean for those receiving enzymes for >/=2 weeks, 11.8 +/- 2. 3 micromol/L (77.1 +/- 14.9 microgram/dL) (n = 15) (P =.03). For the group not yet receiving enzymes, 29% of infants had zinc concentrations in the deficient range. Data were available before and after enzyme therapy for 30 infants and indicated a mean increase of 1.64 +/- 3.0 micromol/L (10.7 +/- 19.3 microgram/dL) (P =. 005).
CONCLUSIONS: These data suggest that many of the infants were zinc deficient at the time of diagnosis. We conclude that zinc should be included among the specific micronutrients given consideration in the management of cystic fibrosis, particularly in infants.
N F Krebs; M Sontag; F J Accurso; K M Hambidge
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, P.H.S.    
Journal Detail:
Title:  The Journal of pediatrics     Volume:  133     ISSN:  0022-3476     ISO Abbreviation:  J. Pediatr.     Publication Date:  1998 Dec 
Date Detail:
Created Date:  1999-01-13     Completed Date:  1999-01-13     Revised Date:  2014-07-29    
Medline Journal Info:
Nlm Unique ID:  0375410     Medline TA:  J Pediatr     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  761-4     Citation Subset:  AIM; IM    
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MeSH Terms
Cross-Sectional Studies
Cystic Fibrosis / blood*,  therapy
Infant, Newborn
Least-Squares Analysis
Zinc / blood*
Grant Support
Reg. No./Substance:

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