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Altered short-term plasticity in the prefrontal cortex after early life seizures. Neurobiol Dis 2013 Feb;50:120-6

Date

10/16/2012

Pubmed ID

23064435

Pubmed Central ID

PMC3534893

DOI

10.1016/j.nbd.2012.10.007

Scopus ID

2-s2.0-84868488002   36 Citations

Abstract

Seizures during development are a relatively common occurrence and are often associated with poor cognitive outcomes. Recent studies show that early life seizures alter the function of various brain structures and have long-term consequences on seizure susceptibility and behavioral regulation. While many neocortical functions could be disrupted by epileptic seizures, we have concentrated on studying the prefrontal cortex (PFC) as disturbance of PFC functions is involved in numerous co-morbid disorders associated with epilepsy. In the present work we report an alteration of short-term plasticity in the PFC in rats that have experienced early life seizures. The most robust alteration occurs in the layer II/III to layer V network of neurons. However short-term plasticity of layer V to layer V network was also affected, indicating that the PFC function is broadly influenced by early life seizures. These data strongly suggest that repetitive seizures early in development cause substantial alteration in PFC function, which may be an important component underlying cognitive deficits in individuals with a history of seizures during development.

Author List

Hernan AE, Holmes GL, Isaev D, Scott RC, Isaeva E

Author

Olena Isaeva PhD Assistant Professor in the Cell Biology, Neurobiology and Anatomy department at Medical College of Wisconsin




MESH terms used to index this publication - Major topics in bold

Animals
Animals, Newborn
Neuronal Plasticity
Patch-Clamp Techniques
Prefrontal Cortex
Rats
Rats, Sprague-Dawley
Seizures
Synaptic Transmission