Document Detail


A comparison of the baseline metabolic profiles between Diabetes Prevention Trial-Type 1 and TrialNet Natural History Study participants.
MedLine Citation:
PMID:  20522170     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVE: We assessed whether differing autoantibody screening criteria for type 1 diabetes (T1D) prevention trials result in different baseline metabolic profiles of those who screen positive.
METHODS: Diabetes Prevention Trial-Type 1 (DPT-1) participants were screened for islet cell autoantibodies, whereas TrialNet Natural History Study (TNNHS) participants were screened for biochemical autoantibodies. In both studies, those determined to be autoantibody positive underwent baseline oral glucose tolerance tests (OGTTs) in which glucose and C-peptide were measured.
RESULTS: The percentage of those with an OGTT in the diabetic range was higher among the DPT-1 participants (10.0% of 956 vs. 6.4% of 645, p < 0.01). In a logistic regression analysis with adjustments for age and gender, the difference persisted (p < 0.01). Among those in the non-diabetic range (n = 860 for DPT-1 and n = 604 for the TNNHS), glucose levels were similar at all time points, except for higher fasting glucose levels in the TNNHS participants (p < 0.001). There was a higher percentage of impaired fasting glucose (IFG) in the TNNHS participants (10.9 vs. 6.7%, p < 0.01); however, with adjustments for age and gender, there was no longer a significant difference. There was no significant difference in the percentages with impaired glucose tolerance. C-peptide levels were much lower in the DPT-1 cohort at all OGTT time points (p < 0.001 for all).
DISCUSSION: Differing criteria for autoantibody screening can result in marked differences in the baseline metabolic profiles of prospective participants of T1D prevention trials.
Authors:
Jay M Sosenko; Jeffrey Mahon; Lisa Rafkin; John M Lachin; Heidi Krause-Steinrauf; Jeffrey P Krischer; David Cuthbertson; Jerry P Palmer; Clinton Thompson; Carla J Greenbaum; Jay S Skyler;
Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, N.I.H., Extramural; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Pediatric diabetes     Volume:  12     ISSN:  1399-5448     ISO Abbreviation:  Pediatr Diabetes     Publication Date:  2011 Mar 
Date Detail:
Created Date:  2011-02-28     Completed Date:  2011-06-23     Revised Date:  2012-03-08    
Medline Journal Info:
Nlm Unique ID:  100939345     Medline TA:  Pediatr Diabetes     Country:  Denmark    
Other Details:
Languages:  eng     Pagination:  85-90     Citation Subset:  IM    
Copyright Information:
© 2010 John Wiley & Sons A/S.
Affiliation:
Division of Endocrinology, University of Miami, Miami, FL, USA. jsosenko@med.miami.edu
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MeSH Terms
Descriptor/Qualifier:
Adolescent
Adult
Autoantibodies / analysis*,  metabolism
Basal Metabolism / physiology*
Biological Markers / analysis,  metabolism
Child
Child, Preschool
Clinical Trials as Topic / methods*
Cohort Studies
Diabetes Mellitus, Type 1 / diagnosis,  metabolism,  prevention & control*
Female
Humans
Infant
Male
Mass Screening / methods
Metabolome*
Middle Aged
Young Adult
Grant Support
ID/Acronym/Agency:
U01 DK061041-06/DK/NIDDK NIH HHS
Chemical
Reg. No./Substance:
0/Autoantibodies; 0/Biological Markers; 0/islet cell antibody

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