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Personalized gene therapy relieves severe epilepsy in two boys

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Researchers successfully treated severe epilepsy in two boys using personalized gene therapy that switched off one copy of a specific gene. The treatment resulted in significant seizure reduction, and notably enabled one child who was previously unable to walk to achieve independent mobility for the first time. This approach represents a targeted genetic intervention tailored to the individual patients' conditions.


This demonstrates that personalized gene therapy can effectively treat severe neurological conditions by precisely modulating gene expression rather than completely eliminating gene function. The therapy's success in reducing seizures and improving motor function suggests potential applications for other genetic forms of epilepsy and neurological disorders where gene dosage is critical.


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Nature, Published online: 24 July 2026; doi:10.1038/d41586-026-02267-0

Switching off one copy of a gene also enabled one of the children to walk independently for the first time.

Source: Personalized gene therapy relieves severe epilepsy in two boys