Delineation of the genetic and clinical spectrum, including candidate genes, of monogenic diabetes: a multicenter study in South Korea.
J Pediatr Endocrinol Metab
; 33(12): 1539-1550, 2020 Dec 16.
Article
em En
| MEDLINE
| ID: mdl-33031055
ABSTRACT
OBJECTIVES:
Monogenic diabetes includes a group of heterogeneous diabetes types. We aimed to identify the frequency, clinical and molecular features of monogenic diabetes in a Korean pediatric cohort.METHODS:
A retrospective cohort and multicenter study of Korean children suspected to have monogenic diabetes, managed by four pediatric endocrine centers in the southeast region of South Korea, from February 2016 to February 2020. We recruited 27 pediatric Korean patients suspected to have monogenic diabetes who had at least two of the following three criteria (age at diagnosis, family history, and clinical presentation). Targeted exome sequencing was conducted in these patients. The functional consequences of the variants were predicted by bioinformatics and protein structure analysis.RESULTS:
Molecular genetic analysis identified 16 patients (59.3%) with monogenic diabetes. We identified a total of eight unique variants, including five novel variants (HNF4A c.1088C>T, CEL c.1627C>T and c.1421C>T, PAX4 c.538+8G>C, INS c.71C>T). We also identified two potential candidate gene variants for monogenic diabetes, namely c.650T>C in the SLC2A2 gene and c.629G>A in the PTF1A gene. Other variants were identified in the WFS1and NPHP3 genes in two rare genetic disorders. Variant-positive individuals had a lower presence of autoantibody positivity at the time of diagnosis and higher glycosylated hemoglobin levels at last follow-up when compared to variant-negative patients (p<0.001 and p=0.029, respectively).CONCLUSIONS:
These results further expand the spectrum of known variants as well as potential candidate gene variants associated with monogenic diabetes in Korea.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Contexto em Saúde:
2_ODS3
Problema de saúde:
2_muertes_prematuras_enfermedades_notrasmisibles
Assunto principal:
Glicemia
/
Biomarcadores
/
Testes Genéticos
/
Diabetes Mellitus
/
Sequenciamento de Nucleotídeos em Larga Escala
/
Mutação
Tipo de estudo:
Observational_studies
/
Prognostic_studies
/
Risk_factors_studies
Limite:
Adolescent
/
Child
/
Child, preschool
/
Female
/
Humans
/
Infant
/
Male
País/Região como assunto:
Asia
Idioma:
En
Revista:
J Pediatr Endocrinol Metab
Assunto da revista:
ENDOCRINOLOGIA
/
PEDIATRIA
Ano de publicação:
2020
Tipo de documento:
Article