Fig. 2
From: Nail growth arrest under low body temperature during hibernation
Comparison of daily nail growth during HIB. a Representative example of the oxygen consumption rate (OCR) of the hibernating Syrian hamster measured every 5 min (ml/minST). Each point represents the measured VO2 value. b Photographs of labeled nails. From left to right, the nail grew 627 μm after 14 days in the CA group, 253 μm after 26 days in the HIB group, 777 μm after 14 days in the post-HIB group, and 750 μm after 15 days in the interrupted HIB group. c Daily nail growth in the CA, HIB, HIB/PA, post-HIB, and interrupted HIB groups. Independent measurements of one finger of the left and right forelimbs per animal were done and each point represents the average of the two digits. CA (n = 8), HIB (n = 3), HIB/PA (n = 3), and post-HIB (n = 4). interrupted-HIB (n = 2). HIB/PA values were determined by dividing the growth during HIB by the period spent in PA. Only the HIB group exhibited a significant reduction in nail growth compared with the other groups (**p < 0.0005, ***p < 0.0001, Tukey–Kramer test). d Daily nail growth was recovered by the exit from the HIB to post-HIB in the same individuals. The average of nail growth in the left and right forelimbs was plotted for the hibernated animals. Each line represents a nail-growth transition (**p < 0.01, paired t-test)