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Suppression of synaptic plasticity by fullerenol in rat hippocampus in vitro

Authors Wang X, Zha Y, Yang B, Chen L, Wang M

Received 22 January 2016

Accepted for publication 12 July 2016

Published 28 September 2016 Volume 2016:11 Pages 4947—4955


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 5

Editor who approved publication: Dr Lei Yang

Xin-Xing Wang,1,2,* Ying-Ying Zha,3,* Bo Yang,1 Lin Chen,1,2 Ming Wang1,2

1CAS Key Laboratory of Brain Function and Diseases, 2Auditory Research Laboratory, School of Life Sciences, University of Science and Technology of China, Hefei, Anhui, People’s Republic of China; 3Cell Electrophysiology Laboratory, Wannan Medical College, Wuhu, Anhui, People’s Republic of China

*These authors contributed equally to this work

Abstract: Fullerenol, a water-soluble fullerene derivative, has attracted much attention due to its bioactive properties, including the antioxidative properties and free radical scavenging ability. Due to its superior nature, fullerenol represents a promising diagnostic, therapeutic, and protective agent. Therefore, elucidation of the possible side effects of fullerenol is important in determining its potential role. In the present study, we investigated the acute effects of 5 µM fullerenol on synaptic plasticity in hippocampal brain slices of rats. Incubation with fullerenol for 20 minutes significantly decreased the peak of paired-pulse facilitation and long-term potentiation, indicating that fullerenol suppresses the short- and long-term synaptic plasticity of region I of hippocampus. We found that fullerenol depressed the activity and the expression of nitric oxide (NO) synthase in hippocampus. In view of the important role of NO in synaptic plasticity, the inhibition of fullerenol on NO synthase may contribute to the suppression of synaptic plasticity. These findings may facilitate the evaluation of the side effects of fullerenol.

Keywords: fullerenol, hippocampal slice, nitric oxide synthase, synaptic plasticity, oxidative stress

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