Document Detail

Folate Fortification and Supplementation Do Not Provide Vascular Health Benefits in Type 1 Diabetes.
MedLine Citation:
PMID:  23374677     Owner:  NLM     Status:  Publisher    
OBJECTIVE: To evaluate the lowest effective dose-response of folic acid on endothelial function in children with type 1 diabetes. STUDY DESIGN: A randomized, double-blind, crossover, placebo-controlled trial was conducted in 20 children with type 1 diabetes (age range 10-18 years) after mandatory folate fortification in Australia. Each child received orally 4 interventions (1 per month)-3 folic acid doses (0.5, 2, and 5 mg) and 1 placebo dose-in random order. The primary outcome was 2-hour postintervention change in endothelial function measured with flow-mediated dilatation (FMD). Thirty-five children with type 1 diabetes from our folic acid interventional trial before folate fortification were used for comparison. RESULTS: All children completed the study. There were no differences in baseline FMD or folate status between the visits. Folic acid supplementation increased serum folate (P = .0001) and red cell folate (P < .0001), but none of the doses improved FMD (P = .96). Baseline serum folate and red cell folate levels and FMD and glyceryl trinitrate-mediated dilatation were significantly higher in these children compared with children from our trial before mandatory folate fortification (P = .0001, .0001, .014, and .04, respectively). CONCLUSIONS: Folate status and vascular function have improved in children with type 1 diabetes since the introduction of mandatory folate fortification, but the beneficial endothelial effects of additional folic acid are no longer present.
Alexia Sophie Peña; Oana Maftei; Kate Dowling; Roger Gent; Esko Wiltshire; Karen Mackenzie; Jennifer Couper
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-29
Journal Detail:
Title:  The Journal of pediatrics     Volume:  -     ISSN:  1097-6833     ISO Abbreviation:  J. Pediatr.     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-2-4     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0375410     Medline TA:  J Pediatr     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2013 Mosby, Inc. All rights reserved.
Department of Pediatrics, University of Adelaide, Adelaide, South Australia, Australia; Endocrinology and Diabetes Center, Women's and Children's Hospital, North Adelaide, South Australia, Australia. Electronic address:
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