Fig. 4

Summarized data on the changes in the decrease in EP induced by furosemide infusion with or without the endolymphatic administration of EGTA-AM, nifedipine, or SKF96365. Administration of EGTA-AM or SKF96365 into the endolymph significantly suppressed the FUID, but nifedipine did not. Moreover, in the presence of nifedipine, the recovery rate from the FUID was significantly retarded. *P > 0.05, **P > 0.01, ***P > 0.005 indicate significant differences from the corresponding data for the control experiment