title: The Effects of Kainic Acid-Induced Seizure on Gene Expression of Brain Neurotransmitter Receptors in Mice Using RT2PCR Array.
abstract: BACKGROUND
  Kainic acid (KA) induces neuropathological changes in specific regions of the mouse hippocampus comparable to changes seen in patients with chronic temporal lobe epilepsy (TLE). According to different studies, the expression of a number of genes are altered in the adult rat hippocampus after status epilepticus (SE) induced by KA. This study aimed to quantitatively evaluate changes in the gene expression of brain neurotransmitter receptors one week after administration of kainic acid in the mouse hippocampus.
  
  
  METHODS
  We used 12 BALB/c mice in this study and randomly divided them into 2 groups. To both groups, saline (IP) was administered for 7 days, and on the last day, KA (10 mg/kg, IP) was injected 30 minutes after administration of saline. Subsequently, behavioural changes were observed in mice. Then, in one group (1 day group), 2 hours and in another group (7 days group), 7 days after KA administration, the hippocampus tissue of mice was removed and used for gene expression analyses. Total brain RNA was isolated and reversely transcribed. We performed qPCR using RT2ProfilerTMPCR Array Mouse Neurotransmitter Receptors and Regulators (QIAGEN) containing primers for 84 genes. In this regard, we selected 50 related genes for KA model.
  
  
  RESULTS
  Our results showed significant changes in the gene expression of GABAAsubunits receptors, including α1-α3, α5, α6, β2, β3, γ1, ρ, and rho1-2 on day 7 compared with the day 1.
  
  
  CONCLUSIONS
  Expression of both inhibitory and excitatory receptors changed after one week. Further studies are needed to find more molecular changes in the gene expression of brain neurotransmitter receptors and regulators over longer periods of time in KA models using RT2PCR array.
authors.affiliation: Cellular and Molecular Research Centre, Qazvin University of Medical Sciences, Qazvin, Iran.
authors.forename: Taghi
authors.initials: T
authors.lastname: Naserpour Farivar
authors.affiliation: Cellular and Molecular Research Centre, Qazvin University of Medical Sciences, Qazvin, Iran.; Department of Pharmacology, School of Medicine, Qazvin University of Medical Sciences, Qazvin, Iran.
authors.forename: Marjan
authors.initials: M
authors.lastname: Nassiri-Asl
authors.affiliation: Cellular and Molecular Research Centre, Qazvin University of Medical Sciences, Qazvin, Iran.
authors.forename: Pouran
authors.initials: P
authors.lastname: Johari
authors.affiliation: Cellular and Molecular Research Centre, Qazvin University of Medical Sciences, Qazvin, Iran.
authors.forename: Reza
authors.initials: R
authors.lastname: Najafipour
authors.affiliation: Department of Pharmacology, School of Medicine, Qazvin University of Medical Sciences, Qazvin, Iran.
authors.forename: Farid
authors.initials: F
authors.lastname: Hajiali
keywords: Gene expression; Hippocampus; Kainic acid; Neurotransmitter; Temporal lobe epilepsy