Abstract
The present study was designed to determine the effects of p-coumaric acid (p-CA), a phenolic compound, on passive avoidance memory function and hippocampal long-term potentiation (LTP) in an Alzheimer's disease (AD) rat model induced by aluminum chloride (AlCl3). p-CA (100 mg/kg; P.O.) was administered concomitantly with AlCl3 (100 mg/kg; P.O.) for 42 consecutive days. Results of this study revealed an attenuation of memory capacity, which was accompanied by a reduction in both components of LTP (field excitatory postsynaptic potentials slope and population spike amplitude) and an increase in amyloid-beta (Aβ) plaques production in the AlCl3-exposed rats. Intriguingly, treatment with p-CA improved passive avoidance memory dysfunction, ameliorated hippocampal LTP impairment, and hindered Aβ plaque accumulation in the hippocampal dentate gyrus of AlCl3-treated rats. This data provides evidence that p-CA improves AlCl3-induced passive avoidance memory decline, which may be partly related to amelioration of synaptic dysfunction and suppression of Aβ plaque formation.
Published Version
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