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http://dx.doi.org/10.4062/biomolther.2014.146

Effect of Pioglitazone on Excitotoxic Neuronal Damage in the Mouse Hippocampus  

Lee, Choong Hyun (Department of Pharmacy, College of Pharmacy, Dankook University)
Yi, Min-Hee (Department of Anatomy, Brain Research Institute, Chungnam National University School of Medicine)
Chae, Dong Jin (Department of Anatomy, Brain Research Institute, Chungnam National University School of Medicine)
Zhang, Enji (Department of Anatomy, Brain Research Institute, Chungnam National University School of Medicine)
Oh, Sang-Ha (Department of Plastic Surgery, Chungnam National University Hospital)
Kim, Dong Woon (Department of Anatomy, Brain Research Institute, Chungnam National University School of Medicine)
Publication Information
Biomolecules & Therapeutics / v.23, no.3, 2015 , pp. 261-267 More about this Journal
Abstract
Pioglitazone (PGZ), a synthetic peroxisome proliferator-activated receptor ${\gamma}$ agonist, is known to regulate inflammatory process and to have neuroprotective effects against neurological disorders. In the present study, we examined the effects of 30 mg/kg PGZ on excitotoxic neuronal damage and glial activation in the mouse hippocampus following intracerebroventricular injection of kainic acid (KA). PGZ treatment significantly reduced seizure-like behavior. PGZ had the neuroprotective effect against KA-induced neuronal damage and attenuated the activations of astrocytes and microglia in the hippocampal CA3 region. In addition, MPO and $NF{\kappa}B$ immunoreactivities in the glial cells were also decreased in the PGZ-treated group. These results indicate that PGZ had anticonvulsant and neuroprotective effects against KA-induced excitotocix injury, and that neuroprotective effect of PGZ might be due to the attenuation of KA-induced activation in astrocytes and microglia as well as KA-induced increases in MPO and $NF{\kappa}B$.
Keywords
Pioglitazone; Kainic acid; Neuroprotection; Hippocampus; Astrocyte; Microglia;
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