Developmental epileptic encephalopathy caused by a de novo mutation in the SCN8A gene

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Analysis shows gain-of-function mutation affects cognition and movement in infants, indicating new treatment avenues.

Cognitive impairment and movement disorders were observed as a result of the SCN8A gene mutation, impacting development.
Gain-of-function mutations lead to severe epileptic seizures and affect behavioral traits like autism.
Corticosteroids resulted in temporary seizure control, yet full treatment efficacy remains challenging.
Further investigation into selective inhibitors of NaV1.6 channels is vital for managing this condition's progression.

Chebanenko et al. (2025) studied this question.

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