Fig. 1. Box plot representing paw withdrawal thresholds in response to mechanical stimuli on the left (  A ) and right (  B ) hind paws in naive (n = 12), neonatally saline-treated (n = 12), and neonatally carrageenan (CAR)-treated (n = 12) groups at postnatal days 35, 42, and 49. The box and whisker plots are expressed as medians (  horizontal lines ) with first and third quartiles (  boxes ), and 10th and 90th percentiles (  vertical lines ). *  P < 0.05  versus the corresponding naive and the neonatally saline-treated groups at each time point. #  P < 0.05  versus the neonatally CAR-treated groups at postnatal days 35 and 42.