Epileptogenesis in Common Parasitic Infections

Area of Science:

• Neuroparasitology
• Epileptology
• Infectious Diseases

Background:

• Neurocysticercosis (NCC) is a primary cause of epilepsy globally.
• Cerebral malaria (CM) and onchocerciasis are also implicated in parasite-associated epilepsy.
• Emerging biomarkers aid in identifying individuals at risk for these conditions.

Purpose of the Study:

• To compare clinical and electrophysiological findings in epilepsy associated with NCC, CM, and onchocerciasis.
• To discuss the underlying mechanisms of epileptogenesis in parasite-associated epilepsies.
• To evaluate the controversial association between onchocerciasis and epilepsy.

Main Methods:

• Comparative analysis of clinical and electrophysiological data.
• Review of existing literature on parasite-associated epilepsy.
• Discussion of pathogenic mechanisms and disease phases.

Main Results:

• Both NCC and CM involve direct/indirect brain invasion, leading to acute inflammation and chronic seizures.
• Onchocerca volvulus does not typically invade the central nervous system, making its link to epilepsy controversial.
• The acute and chronic phases of epileptogenesis are well-defined for NCC and CM but not for onchocerciasis.

Conclusions:

• Parasitic infections like NCC and CM present distinct pathogenic pathways to epilepsy.
• Further research is needed to clarify the role of Onchocerca volvulus in epilepsy.
• Understanding these mechanisms is crucial for developing targeted interventions.