Figure 5: Quantification of TRPA1 and CGRP immunoreactive cells in DRGs as compared to the sham group. (a) TRPA1 shows a higher significance at day 7 () and then a less at day 14 (). (b) CGRP shows a high significance at days 14 and 21 (). The numbers of +IR cells is expressed as percentage of total cells. (c) DAPI-stained nuclei are increased at days 7 (), 14 (), and 21 ().