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http://dx.doi.org/10.5352/JLS.2019.29.5.564

Effect of an Ethanol Extract of Cassia obtusifolia Seeds on Alcohol-induced Memory Impairment  

Kwon, Huiyoung (Department of Medicinal Biotechnology, College of Health Sciences, Dong-A University)
Cho, Eunbi (Department of Medicinal Biotechnology, College of Health Sciences, Dong-A University)
Jeon, Jieun (Department of Medicinal Biotechnology, College of Health Sciences, Dong-A University)
Lee, Young Choon (Department of Medicinal Biotechnology, College of Health Sciences, Dong-A University)
Kim, Dong Hyun (Department of Medicinal Biotechnology, College of Health Sciences, Dong-A University)
Publication Information
Journal of Life Science / v.29, no.5, 2019 , pp. 564-569 More about this Journal
Abstract
Heavy drinking disrupts the nervous system by activation of GABA receptors and inhibition of glutamate receptors, thereby preventing short-term memory formation. Degradation of cognition by alcohol induces blackouts, and it can lead to alcoholic dementia if repeated. Therefore, drugs need to be developed to prevent alcohol-induced blackout. In this study, we confirmed the effect of an ethanol extract of Cassia obtusifolia seeds (COE) on alcohol-induced memory impairment. The effects of COE and ethanol on cognitive functions mice were examined using the passive avoidance and Y-maze tests. The manner in which alcohol affects long-term potentiation (LTP) in relation to the learning and memory was confirmed by electrophysiology performed on mouse hippocampal slices. We also measured N-methyl-D-aspartate (NMDA) receptor-mediated field excitatory synapses (fEPSPs), which have a known association with cognitive impairment caused by ethanol. Ethanol caused memory impairments in passive avoidance and Y-maze tests. COE prevented these ethanol-induced memory impairments in these tests. Ethanol also blocked LTP induction in the mouse hippocampus, and COE prevented this ethanol-induced LTP deficit. Ethanol decreased NMDA receptor-mediated fEPSPs in the mouse hippocampus, and this decrease was prevented by COE. These results suggest that COE might be useful in preventing alcohol-induced neurological dysfunctions, including blackouts.
Keywords
Cassia obtusifolia; ethanol; long-term potentiation; NMDA receptor; synaptic plasticity;
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