Publications by authors named "Hannah F Johnson"

. The developing world continues to face challenges in closing the large treatment gap for epilepsy, due to a high burden of disease and few experienced providers to manage the condition. Children with epilepsy are susceptible to higher rates of developmental impairments and refractory disease due to delays or absence of appropriate management as a result.

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Article Synopsis
  • The study investigates neurodevelopmental disorders linked to the PPP2R1A gene, focusing on 30 individuals with various de novo genetic variants.
  • The researchers found a range of developmental delays, from mild learning issues to severe intellectual disabilities, often accompanied by symptoms like language delays and hypotonia.
  • The findings suggest a broader clinical spectrum for PPP2R1A-related disorders and highlight how different variants impact patient severity and neurological function.
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Background: Migraine is common in children and adolescents and can be disabling. Being able to predict which patients will respond to triptans based on their clinical phenotype would be helpful. Adult data suggest cranial autonomic symptoms and aura predict triptan response.

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Polyamines are endogenous molecules involved in cell damage following neurological insults, although it is unclear whether polyamines reduce or exacerbate this damage. We used a developmental seizure model in which we exposed Xenopus laevis tadpoles to pentylenetetrazole (PTZ), a known convulsant. We found that, after an initial PTZ exposure, seizure onset times were delayed in response to a second PTZ exposure 4 h later.

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