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Updated: Jul 5, 2026

Assessment and Evaluation of the High Risk Neonate: The NICU Network Neurobehavioral Scale
Published on: August 25, 2014
[Neonatal diabetes mellitus]
Lucimary C Gurgel1, Regina S Moisés
1Escola Paulista de Medicina, Universidade Federal de São PauloSP, Brasil.
Insights
Neonatal diabetes, a rare infant hyperglycemia, is often transient or permanent due to genetic defects. Understanding these causes, like chromosome 6q24 abnormalities or KCNJ11 mutations, guides essential insulin treatment.
Area of Science:
- Endocrinology
- Genetics
- Pediatrics
Context:
- Neonatal diabetes mellitus (NDM) is a rare disorder presenting with hyperglycemia in early infancy.
- It necessitates insulin therapy and is classified as transient or permanent based on its duration.
- Genetic factors are key determinants of NDM subtypes.
Purpose:
- To outline the clinical presentations of neonatal diabetes.
- To elucidate the genetic underpinnings of transient and permanent NDM.
- To discuss the therapeutic strategies informed by genetic findings.
Summary:
- Transient NDM is frequently linked to aberrations in the imprinted 6q24 region on chromosome 6.
- Permanent NDM most commonly arises from activating mutations in the KCNJ11 gene, affecting the Kir6.2 subunit of ATP-sensitive potassium channels.
- Both forms are genetically diverse, highlighting the need for precise diagnosis.
Impact:
- Improved understanding of NDM genetics facilitates targeted therapies.
- Genetic insights can predict disease course and inform treatment decisions.
- Advances in NDM management enhance long-term patient outcomes.
Abstract:
Neonatal diabetes is a rare condition characterized by hyperglycemia, requiring insulin treatment, diagnosed within the first months of life. The disorder may be either transient, resolving in infancy or early childhood with possible relapse later, or permanent in which case lifelong treatment is necessary. Both conditions are genetically heterogeneous; however, the majority of the cases of transient neonatal diabetes are due to abnormalities of an imprinted region of chromosome 6q24. For permanent neonatal diabetes, the most common causes are heterozygous activating mutations of KCNJ11, the gene encoding the Kir6.2 sub-unit of the ATP-sensitive potassium channel. In this article we discuss the clinical features of neonatal diabetes, the underlying genetic defects and the therapeutic implications.
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