As of 2010 there was no treatment that addressed the cause of<unk>  or could slow its progression; people receive supportive care to ease the symptoms and extend life by reducing the chance of contracting infections. Infants are given feeding tubes when they can no longer swallow. In late-onset<unk><unk> , medication (e.g., lithium for depression) can sometimes control psychiatric symptoms and seizures, although some medications (e.g., tricyclic antidepressants, phenothiazines, haloperidol, and risperidone) are associated with significant adverse effects.
Tay–Sachs disease
Sandhoff disease
Fox–Fordyce disease
Leigh syndrome
Bietti's crystalline dystrophy
Neuronal ceroid lipofuscinosis
Akureyri disease
Dejerine–Sottas disease