Table 3.
Data are mean ± SEM. EC50: effective concentration of 50% maximal effect, Gm: gentamicin, Mg: MgCl2, Rv: ropivacaine, ST: single twitch, PTT: peak tetanic tension, ETT: end tetanic tension. *P < 0.05, vs. Mg 2 mM, Mg 2 mM + Rv 0.5 µM, Mg 1.5 mM + Rv 0.5 µM + Gm 20 µM, and Mg 2 mM + Rv 0.5 µM + Gm 20 µM, †P < 0.05, vs. Mg 2 mM, Mg 2 mM + Rv 0.5 µM, and Mg 2 mM + Rv 0.5 µM + Gm 20 µM, ‡P < 0.05, vs. Mg 1.5 mM, Mg 2 mM + Rv 0.5 µM, and Mg 2 mM + Rv 0.5 µM + Gm 20 µM, §P < 0.05, vs. Mg 2 mM + Rv 0.5 µM + Gm 20 µM, ∥P < 0.05, vs. Mg 1.5 mM + Rv 0.5 µM, and ¶P < 0.05, vs. Mg 2 mM + Rv 0.5 µM and Mg 2 mM + Rv 0.5 µM + Gm 20 µM by t-test with Bonferroni's correction.