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- W2756054953 abstract "Abstract Depression is a psychiatric disorder and chronic stress, leading to altered glucocorticoid secretion patterns, is one of the factors that induce depression. Our previous study showed that amantadine significantly attenuated the impairments of synaptic plasticity and cognitive function a rat model of CUS. However, little is known regarding the underlying mechanism. In the present study, the whole‐cell patch‐clamp technique was applied to examine the protection effect of amantadine on the hippocampus CA3‐CA1 pathway. Evoked excitatory postsynaptic currents (eEPSCs), miniature excitatory postsynaptic currents (mEPSCs), paired‐pulse ratio (PPR) and the action potentials of CA3 neurons were recorded. Our data showed that corticosterone increased the amplitude of eEPSCs and decreased the value of paired‐pulse ratio (PPR), but both of them were significantly reversed by amantadine. In addition, the frequency of mEPSC was considerably increased by corticosterone, but it was reduced by amantadine. Moreover, we used the Fluo‐3/AM image to detect the Ca 2+ influx in primary cultured hippocampal neurons. The results showed that the intracellular calcium levels were significantly decreased by amantadine in the corticosterone treated neurons. Additionally, the superoxide dismutase (SOD) and catalase (CAT) activities were reduced by corticosterone, while they were enhanced by either amantadine or low‐calcium artificial cerebral spinal fluid (ACSF). These results suggest that amantadine significantly improves corticosterone‐induced abnormal glutamatergic synaptic transmission of CA3‐CA1 synapses presynaptically and alleviates the activities of antioxidant enzymes via regulating the calcium influx." @default.
- W2756054953 created "2017-09-25" @default.
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- W2756054953 date "2017-09-27" @default.
- W2756054953 modified "2023-10-17" @default.
- W2756054953 title "Neuroprotective effect of amantadine on corticosterone-induced abnormal glutamatergic synaptic transmission of CA3-CA1 pathway in rat's hippocampal slices" @default.
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- W2756054953 doi "https://doi.org/10.1002/syn.22010" @default.
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