Characteristic LTP responses are observed in the cCA3 pathway under isoflurane anesthesia. A plot of normalized field excitatory postsynaptic potential (fEPSP) slope magnitude of cCA3 responses over time using current intensities eliciting 50% of the maximal response and the percent change in amplitude (mean ± SEM).
Notes: Blue diamonds: cCA3 LTP is induced in the presence of Ringer’s solution in isoflurane (+74% ± 54%, n = 4) anesthetized animals. Green squares: LTP induction is blocked in the presence of 3-[(R)-2-carboxypiperazin-4-yl]-propo-2-enyl-1-phosphonic acid (CPP; 3 nmol ic, n = 4).
Abbreviations: cCA3, commissural cornu ammonis region 3; LTP, long-term potentiation; HFS, high frequency stimulation; SEM, standard error of the mean.