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Lipopolysaccharide Preconditioning Prevents Acceleration of Kindling Epileptogenesis Induced by Traumatic Brain Injury Publisher Pubmed



Eslami M1, 2, 3, 4 ; Sayyah M3 ; Soleimani M1 ; Alizadeh L5 ; Hadjighassem M6, 7
Authors
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Authors Affiliations
  1. 1. Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran
  2. 2. Department of Neuroscience, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
  3. 3. Department of Physiology and Pharmacology, Pasteur Institute of Iran, Tehran, Iran
  4. 4. Department of Basic Sciences, School of Allied Medical Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
  5. 5. Shefa Neuroscience Research Center, Tehran, Iran
  6. 6. Brain and Spinal cord injury Research Center, Neuroscience Institute, Imam Khomeini Hospital, Tehran University of Medical Sciences, Tehran, Iran
  7. 7. Department of Neuroscience, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran

Source: Journal of Neuroimmunology Published:2015


Abstract

10-20% of symptomatic epilepsies are post-traumatic. We examined effect of LPS preconditioning on epileptogenesis after controlled cortical impact (CCI). LPS (0.01, 0.1 and 0.5 mg/kg) was injected i.p. to rats 5 days before induction of CCI to parieto-temporal cortex. Kindling started 24 h after CCI by i.p. injection of 30 mg/kg of pentylenetetrazole every other day until manifestation of 3 consecutive generalized seizures. CCI injury accelerated the rate of kindled seizures acquisition. LPS (0.1 and 0.5 mg/kg) prevented the acceleration of kindling. LPS preconditioning significantly decreased IL-1β and TNF-α over-expression and the number of damaged neurons in the hippocampus of traumatic rats. © 2015 Elsevier B.V..