New Genetic-Based Method for Rapid Diagnosis and Treatment of Epilepsy

Understanding Epilepsy

Epilepsy is a neurological disorder marked by seizures and abnormal sensations, impacting individuals across all age groups. Seizures result from sudden bursts of electrical activity in the brain, disrupting normal functions. The World Health Organization (WHO) estimates that roughly 50 million people globally are affected by epilepsy, making it the most prevalent neurological condition.

Development of Genetic Risk Scores

In a recent study published in the journal *Brain*, researchers introduced a quantitative method for assessing genetic risk scores associated with epilepsy, known as polygenic risk scores. These scores are instrumental in differentiating between healthy individuals and those with epilepsy, as well as distinguishing between generalized and focal epilepsies.

Research Methodology

The research team analyzed all known genetic variants linked to epilepsy through genome-wide association studies. They calculated polygenic risk scores from a cohort of approximately 8,000 epilepsy patients and 622,000 control subjects. By leveraging the effect size of common genetic variants, they were able to assess individual epilepsy risk based on the scores obtained.

Findings and Implications

The findings indicated that common genetic variants are significantly more prevalent in epilepsy patients compared to controls, suggesting that these variants can serve as biomarkers for potential treatments. The polygenic risk score demonstrates robust diagnostic capabilities across various medical conditions, providing strong evidence for its application in epilepsy research for the first time.

Future Directions

This study lays the groundwork for future research focused on the early diagnosis and treatment of epilepsy. It also assists healthcare professionals in evaluating an individual’s risk of developing epilepsy through comprehensive genetic assessments, paving the way for early intervention and targeted therapies.

References

ClevelandClinic. (n.d.). Cleveland Clinic-led research team develops new genetic-based epilepsy risk scores. Retrieved from https://www.eurekalert.org/pub_releases/2019-10/cc-ccr101119.php.
Epilepsy. (n.d.). Retrieved from https://www.who.int/news-room/fact-sheets/detail/epilepsy#targetText=Epilepsy accounts for a significant proportion of the world’s disease,and 10 per 1000 people.
Leu, C., Stevelink, R., Smith, A. W., Goleva, S. B., Kanai, M., Ferguson, L., … Lal, D. (2019). Polygenic burden in focal and generalized epilepsies. *Brain*. doi: 10.1093/brain/awz292