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PURPOSE Sphingolipid metabolites, such as sphingosine and ceramide, are highly bioactive compounds and are involved in diverse cell processes, including cell-cell interaction, cell proliferation, differentiation, and apoptosis. However, the physiological roles of phytosphingosine are poorly understood. In this study, we report that phytosphingosine can(More)
Melatonin is known to have a neuroprotective effect by preventing epileptic seizures, which are normally induced by cyanide. To demonstrate the neuroprotective function of melatonin, we examined cell death and changes in plasma melatonin level in KCN-treated mice. Neuronal cell death is shown in substantial nigra of KCN-treated groups. In melatonin-treated(More)
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