Lesional and non-lesional epilepsies: A blurring genetic boundary

Area of Science:

• Neuroscience
• Genetics
• Neurology

Background:

• Traditionally, epilepsies were categorized as either non-lesional genetic or having genetically determined structural abnormalities.
• This classification created a conceptual partition in understanding epilepsy's origins.

Purpose of the Study:

• To review emerging evidence challenging the strict distinction between lesional and non-lesional epileptogenesis.
• To explore the role of genetic factors in both structural and functional epilepsy.

Main Methods:

• Review of current neuroimaging findings.
• Analysis of neurobiology modeling studies.
• Synthesis of genetic epilepsy research.

Main Results:

• Growing evidence suggests a less obvious distinction between lesional and non-lesional epileptogenesis.
• Genetic factors play a significant role in both categories, particularly in neurodevelopmental disorders.
• The interplay between genetics, structure, and function in epilepsy is more complex than previously assumed.

Conclusions:

• The traditional partition between lesional and non-lesional epilepsies requires re-evaluation.
• Genetic epilepsies often involve complex interactions between genetic predisposition and structural or functional brain changes.
• A unified understanding of epileptogenesis, integrating genetic, structural, and functional aspects, is needed.