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  • Title: Effects of opioid peptides on synaptic potentials in explants of rat hippocampus.
    Author: Gähwiler BH, Herrling PL.
    Journal: Regul Pept; 1981 Feb; 1(5):317-26. PubMed ID: 6265979.
    Abstract:
    Bath application of 10(-8) M FK 33-824 (an enkephalin analogue) and 10(-7) M beta-endorphin reversibly induced stimulus-evoked bursting activity with depolarization shifts in cultured hippocampal pyramidal cells. Statistical analysis of the data revealed that in the majority of cells, inhibitory postsynaptic potentials were markedly decreased and excitatory postsynaptic potentials increased prior to the development of bursting activity, although some inhibition persisted in cells exposed to opioid peptides. In a minority of cells, no alteration in synaptic potentials were observed to precede the stimulus-evoked bursts induced by the opioid peptides.
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