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- W2023348428 abstract "Severe cellular damage and neuronal cell loss were previously observed in cultures of primary cortical neurones after chronic ethanol pre-treatment followed by ethanol-withdrawal. In this study, we investigated the circumstances and the possible cellular changes leading to alcohol-withdrawal induced neuronal cell death. When cultures were pre-treated with ethanol (25-200mM) once for 24 or 72h, the amount of the subsequent 24h alcohol-withdrawal induced cell death-estimated by measuring the release of lactate dehydrogenase (LDH)-was elevated only in cultures pre-treated with 200mM ethanol for 72h. On the contrary, as little as 50mM ethanol produced significant (P<0.01) increase in the withdrawal induced LDH-release in cultures pre-treated repeatedly with ethanol once daily for three consecutive days. When ethanol was re-added to the cultures during the withdrawal period, the LDH-release was dose-dependently reduced to the level of control. In ethanol pre-treated cultures N-methyl-D-aspartate (NMDA) (0.01-1mM) induced excitotoxicity as well as NMDA evoked elevation of cytosolic calcium ion concentration was increased. In contrast, the depolarising agent veratridine (0.01-1mM) produced similar extent of neuronal injury and elevation in cytosolic calcium ion concentration in control as in ethanol pre-treated cultures. According to these observations, repeated ethanol treatment appears to cause more robust adaptive changes in cultured neurones leading to more pronounced withdrawal induced cellular damage than chronic but single treatment does. In addition, the glutamatergic neurotransmission, especially the NMDA receptor system seems to be highly involved in the adaptive changes and in the cytotoxic effect of alcohol-withdrawal." @default.
- W2023348428 created "2016-06-24" @default.
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- W2023348428 date "2002-06-01" @default.
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- W2023348428 title "Increased sensitivity to NMDA is involved in alcohol-withdrawal induced cytotoxicity observed in primary cultures of cortical neurones chronically pre-treated with ethanol" @default.
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- W2023348428 doi "https://doi.org/10.1016/s0197-0186(01)00131-0" @default.
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