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Leni [432]
3 years ago
7

An insect is discovered with a nasty venom in its bite that enters the brain and causes all axons to fire an action potential. W

hat would be the most likely effects of this venom?
a.) Complete paralysis


b.) Substantial decrease in energy use


c.) Wide spread seizures


d.) A loss of the ability to learn as synaptic plasticity is destroyed
Social Studies
1 answer:
AlekseyPX3 years ago
6 0

Answer:

Abstract

Background and purpose: The sodium channel is a primary target for treating central nervous system disorders such as epilepsy. In this study the anticonvulsant effect of BmK IT2, a sodium channel-specific neurotoxin, was evaluated in different animal models of epilepsy.

Experimental approach: Experiments were performed on freely moving rats made epileptic by administration of either pentylenetetrazole (PTZ) or pilocarpine. BmK IT2 (0.05–0.5 μg in 2 μl) was microinjected into the CA1 area and its effects on PTZ-induced widespread, seizure-like behaviour and cortex epileptiform EEG, as well as on pilocarpine-induced seizure-like behaviour and c-Fos expression were studied.

Key results: Intrahippocampal application of BmK IT2 dose-dependently inhibited PTZ-induced seizure-like behaviour, and reduced the numbers and duration of the high amplitude and frequency discharges (HAFDs) of the epileptiform EEG component induced by PTZ. Similarly, in the pilocarpine-induced status epilepticus (SE) model, BmK IT2 significantly prolonged the latency to onset of the SE, reduced the severity of SE and suppressed hippocampal c-Fos expression during SE.

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