Monogenic diabetes in overweight and obese youth diagnosed with type 2 diabetes: the TODAY clinical trial
Purpose Monogenic diabetes accounts for 1–2% of diabetes cases. It is often undiagnosed, which may lead to inappropriate treatment. This study was performed to estimate the prevalence of monogenic diabetes in a cohort of overweight/obese adolescents diagnosed with type 2 diabetes (T2D). Methods Sequ...
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| Vydáno v: | Genetics in medicine Ročník 20; číslo 6; s. 583 - 590 |
|---|---|
| Hlavní autoři: | , , , , , , , , , |
| Médium: | Journal Article |
| Jazyk: | angličtina |
| Vydáno: |
New York
Nature Publishing Group US
01.06.2018
Elsevier Limited |
| Témata: | |
| ISSN: | 1098-3600, 1530-0366, 1530-0366 |
| On-line přístup: | Získat plný text |
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| Shrnutí: | Purpose
Monogenic diabetes accounts for 1–2% of diabetes cases. It is often undiagnosed, which may lead to inappropriate treatment. This study was performed to estimate the prevalence of monogenic diabetes in a cohort of overweight/obese adolescents diagnosed with type 2 diabetes (T2D).
Methods
Sequencing using a custom monogenic diabetes gene panel was performed on a racially/ethnically diverse cohort of 488 overweight/obese adolescents with T2D in the Treatment Options for Type 2 Diabetes in Adolescents and Youth (TODAY) clinical trial. Associations between having a monogenic diabetes variant and clinical characteristics and time to treatment failure were analyzed.
Results
More than 4% (22/488) had genetic variants causing monogenic diabetes (seven
GCK
, seven
HNF4A
, five
HNF1A
, two
INS
, and one
KLF11
). Patients with monogenic diabetes had a statistically, but not clinically, significant lower body mass index (BMI)
z
-score, lower fasting insulin, and higher fasting glucose. Most (6/7) patients with
HNF4A
variants rapidly failed TODAY treatment across study arms (hazard ratio = 5.03,
P
= 0.0002), while none with
GCK
variants failed treatment.
Conclusion
The finding of 4.5% of patients with monogenic diabetes in an overweight/obese cohort of children and adolescents with T2D suggests that monogenic diabetes diagnosis should be considered in children and adolescents without diabetes-associated autoantibodies and maintained C-peptide, regardless of BMI, as it may direct appropriate clinical management. |
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| Bibliografie: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 14 ObjectType-Article-2 ObjectType-Feature-1 content type line 23 A listing of the TODAY Study Group can be found in the online appendix |
| ISSN: | 1098-3600 1530-0366 1530-0366 |
| DOI: | 10.1038/gim.2017.150 |