Journal
MOLECULAR AND CELLULAR NEUROSCIENCE
Volume 65, Issue -, Pages 58-67Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.mcn.2015.02.014
Keywords
Epilepsy; AII; Losartan; Microglia; Cognitive impairment; Neuronal loss
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Funding
- Xi'an Jiaotong University Campus Fund [0203222, 76]
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Neuroinflammation plays a role in the pathology of epilepsy and in cognitive impairment. Angiotensin II (AT1) and the angiotensin receptor type 1 (AII) have been shown to regulate seizure susceptibility in different models of epilepsy. Inhibition of All attenuates neuroinflammatoty responses in different neurological diseases. In the present study, we showed that the protein expression of All and All was increased in activated microglia following lithium pilocarpine-induced status epilepticus (SE) in rats. Furthermore, the All receptor antagonist, losartan, significantly inhibited SE-induced cognitive impairment and microglia-mediated inflammation. Losartan also prevented SE induced neuronal loss in the hippocampus and exerted neuroprotection. These data suggest that losartan improves SE-induced cognitive impairment by suppressing microglia mediated inflammatory responses and attenuating hippocampal neuronal loss. Overall, our findings provide a possible therapeutic strategy for the treatment of cognitive impairment in epilepsy. (C) 2015 Elsevier Inc. All rights reserved.
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