Increased susceptibility to pentylenetetrazol following survival of cerebral malaria in mice

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Abstract

Malaria is considered a neglected disease and public health problem, affecting >200 million people worldwide. In the present study we used thePlasmodium bergheiANKA (PbA) model of experimental cerebral malaria (CM) in C57BL/6 mice. After rescue from CM and parasite clearance, animals were submitted to a seizure susceptibility test (45 days after infection) using a low dose of pentylenetetrazol (PTZ, 30 mg/kg) and monitored with use of behavioral and electroencephalography (EEG) methods. Mice rescued from CM presented a reduced latency to myoclonic and tonic–clonic seizures and an increased duration of tonic–clonic seizures. In addition, quantitative analysis of EEG revealed a decrease in relative power at beta frequency band in PbA-infected animals after PTZ injection. Our results suggest that CM may lead to increased susceptibility to seizures in mice.

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