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Neurosci Lett. 2010 May 31;476(2):70-3. doi: 10.1016/j.neulet.2010.04.005. Epub 2010 Apr 9.

Novel nootropic dipeptide Noopept increases inhibitory synaptic transmission in CA1 pyramidal cells.

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Department of Brain Research, Scientific Center of Neurology, Russian Academy of Medical Sciences, by-str. Obukha 5, Moscow 105064, Russia.


Effects of newly synthesized nootropic and anxiolytic dipeptide Noopept on inhibitory synaptic transmission in hippocampal CA1 pyramidal cells were investigated using patch-clamp technique in whole-cell configuration. Bath application of Noopept (1 microM) significantly increased the frequency of spike-dependant spontaneous IPSCs whereas spike-independent mIPSCs remained unchanged. It was suggested that Noopept mediates its effect due to the activation of inhibitory interneurons terminating on CA1 pyramidal cells. Results of current clamp recording of inhibitory interneurons residing in stratum radiatum confirmed this suggestion.

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