title: An abnormal GABAergic system in the inferior colliculus provides a basis for audiogenic seizures in genetically epilepsy-prone rats.
abstract: In this review of neuroanatomical studies of the genetically epilepsy-prone rat (GEPR), three main topics will be covered. First, the number of GABAergic neurons and total neurons in the inferior colliculus of GEPRs will be compared to those of the nonepileptic Sprague-Dawley rat. Next, the number of small neurons in the inferior colliculus will be described in both developmental and genetic analyses of GEPRs and their backcrosses. Last, results from two types of studies on the propagation pathways for audiogenic seizures in GEPRs will be shown. Together, these studies demonstrate a unique GABAergic, small neuron defect in the inferior colliculus of GEPRs that may play a vital role in the initiation and spread of seizure activity during audiogenic seizures. This article is part of a Special Issue entitled "Genetic and Reflex Epilepsies, Audiogenic Seizures and Strains: From Experimental Models to the Clinic".
authors: Department of Anatomy and Neurobiology, School of Medicine, University of California at Irvine, Irvine, CA 92697-1275, USA. Electronic address: ribak@uci.edu.
authors: Charles E
authors: CE
authors: Ribak
mesh_terms: D000161:Acoustic Stimulation / Q000009:adverse effects*; D000818:Animals; D020195:Epilepsy, Reflex / Q000235:genetics* / Q000473:pathology* / Q000503:physiopathology; D059330:GABAergic Neurons / Q000473:pathology*; D007245:Inferior Colliculi / Q000473:pathology* / Q000503:physiopathology; D051381:Rats; D017207:Rats, Sprague-Dawley; D012640:Seizures / Q000235:genetics / Q000473:pathology / Q000503:physiopathology
keywords: Audiogenic seizures; Epilepsy-prone rats; GABAergic neurons; Genetic model; Inferior colliculus