Fig. 7

Capsaicin-evoked calcium responses in the whole population of DRG cells in the presence or absence of olvanil. Results are expressed as a percentage of the peak responses evoked by the first capsaicin application and are presented as means ± SEM. a, TRPV1-mediated calcium responses due to repeated exposure to capsaicin 100 nM. b olvanil significantly decreased the capsaicin-evoked calcium responses compared to an identical protocol of repeated capsaicin exposure in the presence of vehicle (***P < 0.001, Student’s t test)