Table 2.

Gene expression in TRPV1⁺ neurons in neurons isolated from the cervical and T1-T6 DRGS of the adult mouse

Gene	Neurons	Percentage of positve neurons
P2X2	8/48	17%
PPTA	39/48	81%
TRKA	35/48	73%
RET	44/48	92%
TRKA and RET	35/48	73%
GFRα1	35/48	73%
GFRα2	20/48	42%
GFRα3	14/48	29%
GFRα4	20/48	42%

Neurons were isolated from C1 and from T1–T6 DRG of adult mice. The neurons were first screened for expression of TRPV1. A total of 48 TRPV1 expressing neurons were identified obtained from 8 mice.