Abstract
OBJECTIVE To examine the evolution of the dysregulated glucagon responses to mixed-meal tolerance tests (MMTTs) in youth with recent-onset type 1 diabetes (T1D). RESEARCH DESIGN AND METHODS MMTTs were performed in 25 youth (9-18 years of age) with 1.5-12 months disease duration (year 1); 22 subjects were restudied 1 year later (year 2). Twenty nondiabetic (ND) control children were also studied. RESULTS In T1D children,MMTT-stimulated increases in glucagonwere significantly greater than that in ND children (median increments: year 1, 21 pg/mL [16-30]; year 2, 25 pg/mL [16-30]; ND, 9 pg/mL [5-16]; P = 0.001 and P > 0.001, respectively). CONCLUSIONS In comparison with ND control children, exaggerated plasma glucagon responses to mixed-meal feedings are observed in youth with T1D within the first 2 years of diagnosis. Further studies to determine whether suppression of these abnormal responses may help to improve glycemic control are warranted.
Original language | English |
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Pages (from-to) | 1741-1744 |
Number of pages | 4 |
Journal | Diabetes care |
Volume | 37 |
Issue number | 6 |
DOIs | |
State | Published - Jun 2014 |