Document Detail


Perinatal characteristics may influence the outcome of visual acuity.
MedLine Citation:
PMID:  11724461     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Visual-evoked potential (VEP) acuity has been used to assess the effects of dietary fats on the integrity of the visual pathway of infants. We investigated prognostic determinants of VEP acuity at 16 wk of age. The results of two randomized dietary intervention trials designed to assess the effect of dietary fatty acids on the visual development of term infants were combined. At entry to both trials (approximately day 5 of life), a blood sample to assess polyunsaturated fatty acid (PUFA) status was collected along with sociodemographic and perinatal characteristics. At 16 +/- 0.9 wk of age, infants underwent VEP testing to measure acuity. There was no effect of dietary treatment on these outcomes within or between trials. Multiple linear regression models were constructed to investigate the effect of perinatal and nutritional variables at study entry on VEP acuity of 185 infants. Higher birth weight was associated with an ability to resolve smaller checkerboard patterns [r2 = 0.05; 95% confidence interval (Cl), -0.10, -0.04 log units]. Male gender (r2 = 0.03; 95% Cl, 0.01, 0.07 log units), day 5 plasma 22:5n-6 (r2 = 0.04; 95% Cl, 0.02, 0.20 log units), day 5 red cell membrane 20:3n-9 (r2 = 0.03; 95% Cl, 0.03, 0.13 log units), and the number of smokers in the household (r2 = 0.02; 95% Cl, 0.00, 0.04 log units) were all associated with poorer VEP acuity scores. It is possible that a combination of perinatal factors could accumulate to either mask or enhance effects of diet on VEP acuity, given the relatively modest effects of long-chain PUFA on visual outcome.
Authors:
M Makrides; M A Neumann; R A Gibson
Publication Detail:
Type:  Clinical Trial; Journal Article; Meta-Analysis; Randomized Controlled Trial; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Lipids     Volume:  36     ISSN:  0024-4201     ISO Abbreviation:  Lipids     Publication Date:  2001 Sep 
Date Detail:
Created Date:  2001-11-28     Completed Date:  2002-05-22     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0060450     Medline TA:  Lipids     Country:  United States    
Other Details:
Languages:  eng     Pagination:  897-900     Citation Subset:  IM    
Affiliation:
Child Nutrition Research Centre, Child Health Research Institute and Women's & Children's Hospital, North Adelaide, SA 5006, Australia.
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MeSH Terms
Descriptor/Qualifier:
Birth Weight
Docosahexaenoic Acids / pharmacology*
Evoked Potentials, Visual / drug effects*
Female
Humans
Infant
Infant Food
Infant, Newborn
Linoleic Acid / pharmacology*
Male
Predictive Value of Tests
Smoking
alpha-Linolenic Acid / pharmacology*
Chemical
Reg. No./Substance:
2197-37-7/Linoleic Acid; 25167-62-8/Docosahexaenoic Acids; 463-40-1/alpha-Linolenic Acid

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


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