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Electroconvulsive Seizures in Rats and Fractionation of Their Hippocampi to Examine Seizure-induced Changes in Postsynaptic Density Proteins
Published on: August 15, 2017
Decreased creatine kinase activity caused by electroconvulsive shock
Márcio Búrigo1, Clarissa A Roza, Cintia Bassani
1Laboratório de Bioquímica Experimental, Universidade do Extremo Sul Catarinense, 88806-000 Criciúma, SC, Brazil.
Abstract:
Although several advances have occurred over the past 20 years concerning the use and administration of electroconvulsive therapy to minimize side effects of this treatment, little progress has been made in understanding its mechanism of action. Creatine kinase is a crucial enzyme for brain energy homeostasis, and a decrease of its activity has been associated with neuronal death. This work was performed in order to evaluate creatine kinase activity from rat brain after acute and chronic electroconvulsive shock. Results showed an inhibition of creatine kinase activity in hippocampus, striatum and cortex, after acute and chronic electroconvulsive shock. Our findings demonstrated that creatine kinase activity is altered by electroconvulsive shock.
Insights
Electroconvulsive shock therapy alters creatine kinase activity in rat brains. This enzyme is vital for brain energy, and its reduced activity may impact neuronal health.
Area of Science:
- Neuroscience
- Biochemistry
Background:
- Electroconvulsive therapy (ECT) advances have focused on minimizing side effects, yet its mechanism of action remains unclear.
- Creatine kinase is essential for brain energy balance, and decreased activity is linked to neuronal death.
Purpose of the Study:
- To investigate the impact of electroconvulsive shock on creatine kinase activity in the rat brain.
- To determine if acute and chronic electroconvulsive shock affect this key enzyme.
Main Methods:
- Rats were subjected to acute and chronic electroconvulsive shock.
- Creatine kinase activity was measured in brain tissue samples (hippocampus, striatum, cortex).
Main Results:
- Electroconvulsive shock, both acute and chronic, significantly inhibited creatine kinase activity.
- This inhibition was observed across multiple brain regions, including the hippocampus, striatum, and cortex.
Conclusions:
- Electroconvulsive shock demonstrably alters creatine kinase activity in the rat brain.
- These findings suggest a potential link between ECT, brain energy metabolism, and creatine kinase function.
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