Related Experiment Video
Updated: Mar 12, 2026
Pentylenetetrazole-Induced Kindling Mouse Model
Published on: June 12, 2018
Superimposing Status Epilepticus on Neuron Subset-Specific PTEN Haploinsufficient and Wild Type Mice Results in
Gregory D Smith1, Jessika White2, Joaquin N Lugo1,2
1Institute of Biomedical Sciences, Baylor University, Waco, TX 76798, USA.
Abstract:
We evaluated the effects of superimposing seizures on a genetic mutation with known involvement in both Autism Spectrum Disorder and in epilepsy. Neuron-subset specific (NS)-Pten heterozygous (HT) and wildtype (WT) adult mice received either intraperitoneal injections of kainic acid (20 mg/kg) to induce status epilepticus or the vehicle (saline). Animals then received a battery of behavioral tasks in order to evaluate activity levels, anxiety, repetitive-stereotyped behavior, social behavior, learning and memory. In the open field task, we found that HT mice after seizures showed a significant increase in total activity and total distance in the surround region of the open field. In the elevated plus maze task, we found that HT mice after seizures displayed increased total distance and velocity as compared to HT mice that did not undergo seizures and WT controls. In the social chamber test, we found the HT mice after seizures displayed an impairment in social behavior. These findings demonstrate that superimposing seizures on a genetic mutation can result in long-term alterations in activity and social behavior in mice.
Insights
Superimposing seizures on a genetic mutation linked to Autism Spectrum Disorder (ASD) and epilepsy in mice led to increased activity and impaired social behavior, highlighting long-term neurological effects.
Area of Science:
- Neuroscience
- Genetics
- Behavioral Science
Background:
- Autism Spectrum Disorder (ASD) and epilepsy share genetic links.
- The Pten gene mutation is implicated in both ASD and epilepsy.
- Investigating the combined impact of genetic predisposition and induced seizures is crucial.
Purpose of the Study:
- To evaluate the behavioral consequences of superimposing seizures on a genetic mutation associated with ASD and epilepsy.
- To assess long-term alterations in activity, anxiety, repetitive behaviors, social interaction, and learning/memory.
Main Methods:
- Using Neuron-subset specific (NS)-Pten heterozygous (HT) and wildtype (WT) adult mice.
- Inducing status epilepticus via kainic acid injections or administering a vehicle (saline).
- Conducting a battery of behavioral tests including open field, elevated plus maze, and social chamber tests.
Main Results:
- HT mice with induced seizures showed increased activity and exploration in the open field.
- Seizure-induced HT mice exhibited greater distance traveled and velocity in the elevated plus maze.
- HT mice with induced seizures demonstrated significant impairments in social behavior.
Conclusions:
- Superimposing seizures on the NS-Pten HT genetic mutation results in lasting behavioral changes.
- These findings suggest a complex interplay between genetic mutations and seizure activity in neurological disorders.
- The study provides insights into potential mechanisms underlying co-occurring ASD and epilepsy symptoms.
