Abstract
Our previous results indicate that α-tocopherol induces a slowly developing long-term potentiation (LTP) of excitatory postsynaptic potentials (EPSP) in hippocampal slices. In the present study on hippocampal slices obtained from rats fed with vitamin E-deficient diet for 3 months, a tetanic stimulation of the stratum radiatum or applied α-tocopherol phosphate failed to induce LTP of CA1 neuronal EPSPs. However, LTP could be induced in rats fed on a matching control diet. These results indicate that vitamin E-deficiency leads to an impairment in LTP induction.
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