Neonatal diabetes with intractable epilepsy: DEND syndrome

Area of Science:

• Endocrinology
• Genetics
• Neurology

Background:

• Permanent Neonatal Diabetes Mellitus (PNDM) is a rare monogenic disorder.
• It arises from activating mutations in the KATP channel, crucial for insulin secretion.

Observation:

• The most severe clinical manifestation of PNDM is Developmental delay, Epilepsy, and Neonatal Diabetes (DEND) syndrome.
• This syndrome highlights the critical role of KATP channel function in both metabolic and neurological development.

Findings:

• Genetic mutation testing is the gold standard for diagnosing PNDM.
• Activating mutations in the KATP channel are confirmed as the underlying cause.

Implications:

• Early diagnosis through genetic testing is essential for timely intervention.
• Oral sulfonylurea therapy has demonstrated efficacy in improving neurological outcomes in DEND syndrome patients.
• This suggests a potential therapeutic strategy targeting KATP channels for neurological complications in PNDM.