Group CB-HRP and TRPV1double-labeled（yellow） CB-HRP (green) TRPV1 (red) Double-labeled/ CB-HRP (%) 1 (control) 111 ± 13 341± 38 256±22 32.7±3.2 2 (CCI) 174 ± 15 340 ± 24 534±35 51.5±7.4 All the brain tissue sections counted had CB-HRP/TRPV1 double-labeled neurons

Table 1: The means (Mean ± SD) of positive neurons in six rats with oublelabeling for CSF-injected CB-HRP and for TPRV1.