Table 3.
Circadian characteristics of Bmal1:luc rhythms in bear fibroblasts obtained from winter dormant bears and exposed to fetal bovine serum (FBS) or bear serum from different seasons
| Bear ID | Period (h) | Amplitude (cnts/s) | ||||
|---|---|---|---|---|---|---|
| FBS | Dormant Serum | Active Serum | FBS | Dormant Serum | Active Serum | |
| Juv#1 [23.8]† | 24.7 ± 0.14 | 23.75 ± 0.07 | 23.3 ± 0 | 240 ± 4.21 | 712 ± 36 | 571 ± 164 |
| Juv#2 [24] | 23.9 ± 0.28 | 23.05 ± 0.07 | 23.7 ± 0 | 273 ± 54.9 | 1124 ± 58 | 1008 ± 223 |
| Juv#3 [23.7] | 24.5 ± 0.28 | 23.3 ± 0 | 23.15 ± 0.07 | 168 ± 17.9 | 471 ± 28 | 514 ± 63 |
| Juv#4 [23.7] | 24.5 ± 0.21 | 23.45 ± 0.07 | 23.05 ± 0.21 | 167 ± 18.07 | 445 ± 29 | 528 ± 83 |
| Average | 24.39 ± 0.13a | 23.44 ± 0.12b | 22.94 ± 0.11c | 234 ± 24a | 781 111b | 749 ± 101b |
†Values in brackets represent the period (h) of the same bear’s winter dormant activity rhythm in DD for comparison
a,bDifferent letters within a row are significantly different from each other, p ≤ 0.05
Values are means ± SEM