Seizure-inducing Drugs

Seizure-inducing drugs are pharmacological agents that provoke abnormal, hypersynchronous neuronal activity, helping researchers investigate epileptic seizures and brain network excitability. They typically shift the balance between excitation and inhibition by enhancing glutamatergic signaling, reducing GABAergic inhibition, or altering ion-channel activity, with dose, route, and timing influencing seizure onset and severity. In neuroscience, these compounds generate experimental seizure models for recording electroencephalographic activity, examining cellular and circuit mechanisms, and testing anticonvulsant treatments. Their controlled use supports research into epilepsy while revealing how disruptions in neural signaling can produce coordinated pathological activity.

Seizure-inducing Drugs - Related Videos

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JoVE EoE - Neuropathology

Handling-Induced Seizures in a Mouse Model

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2025

This video demonstrates the induction of handling-induced seizures in a mouse infected with Theiler's Murine Encephalomyelitis Virus (TMEV). The infected mouse, which has hyperexcitable neurons, is exposed to external physical stimuli. This exposure causes stress, leading to abnormal electrical activity in the neurons, which results in seizures.

Inducing an Acute Electroconvulsive Seizure in a Rat Model

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2025

Source: Jang, S., et al, Electroconvulsive Seizures in Rats and Fractionation of Their Hippocampi to Examine Seizure-induced Changes in Postsynaptic Density Proteins. J. Vis. Exp. (2017)This video demonstrates the induction of an acute electroconvulsive seizure (ECS) in a rat model to study seizure-induced neuroplasticity. Researchers apply electrical stimulation via ear-clip electrodes, triggering neuronal hyperexcitability and clonus. This model helps investigate synaptic plasticity, seizure...

Electroconvulsive Seizures in Rats and Fractionation of Their Hippocampi to Examine Seizure-induced Changes in Postsynaptic Density Proteins

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Cited by 4 •

2017

Electroconvulsive seizure (ECS) is an experimental animal model of electroconvulsive therapy for severe depression. ECS globally stimulates activity in the hippocampus, leading to synaptogenesis and synaptic plasticity. Here, we describe methods for ECS induction in rats and for subcellular fractionation of their hippocampi to examine seizure-induced changes in synaptic proteins.

Establishing a Pentylenetetrazole-Induced Epileptic Seizure Model in Mice

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2025

This video demonstrates the process of inducing epilepsy in mice using pentylenetetrazole (PTZ) injections, a GABA-A receptor antagonist. Repeated intraperitoneal administration of PTZ progressively lowers the seizure threshold by inhibiting chloride ion influx, disrupting inhibitory neurotransmission, and leading to hyperexcitability in neurons that trigger seizures. This process results in kindling and the development of spontaneous seizures, mimicking chronic epilepsy.

Electroencephalographic Recording of Epileptic Seizures in Epilepsy-Induced Rats

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2025

This video demonstrates electroencephalographic (EEG) recording of epileptic seizures in epilepsy-induced rats. A rat with electrodes implanted in the ventral hippocampus is connected to the EEG recording system and placed in a plexiglass chamber. The rat is allowed to move freely while the brain activity is recorded to monitor the occurrence of seizures.

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