Table 2.
Summary of JTK_CYCLE analysis for rats maintained in control CWF and experimental LED lighting environments
| Estimated peak phasea |
Amplitudea |
Q value for circadian cyclinga |
||||||
| CWF | LED | Phase shiftb (h) | CWF | LED | Fold changeb | CWF | LED | |
| Corticosterone | 2100 | 2100 | 0 | 26.25 | 7.88 | −3.33 | 7.08 × 10–4 | 3.22 × 10–2 |
| Glucose | 1400 | 1700 | 3 | 4.31 | 5.87 | 1.36 | 2.46 × 10–7 | 3.22 × 10–2 |
| Insulin | 0500 | 0400 | −1 | 0.13 | 0.08 | −1.63 | 2.48 × 10–4 | 3.27 × 10–3 |
| Lactate | 1400 | 1600 | 2 | 0.06 | 0.06 | 1.00 | 8.57 × 10–5 | 4.03 × 10–4 |
| Leptin | 2200 | 2100 | −1 | 0.05 | 0.06 | 1.20 | 4.61 × 10–4 | 3.84 × 10–1 |
| Linoleic acid | 0400 | 0400 | 0 | 382.54 | 383.25 | 1.00 | 9.07 × 10–16 | 3.52 × 10–20 |
| Melatonin | 0200 | 0200 | 0 | 14.90 | 107.61 | 7.22 | 1.22 × 10–14 | 9.56 × 10–20 |
| pCO2 | 1300 | 1300 | 0 | 1.56 | 1.27 | −1.22 | 2.64 × 10–1 | 8.74 × 10–2 |
| pO2 | 1600 | 1400 | −2 | 9.19 | 7.07 | −1.30 | 4.64 × 10–12 | 1.63 × 10–9 |
| Total fatty acids | 0400 | 0400 | 0 | 1123.59 | 1123.59 | 1.00 | 5.01 × 10–20 | 1.46 × 10–20 |
a
Phase-, amplitude-, and multiple-testing-adjusted P value (Q) estimated by JTK_CYCLE analysis with a fixed 24-h period and using original units as described in the text.
b
Phase difference and fold change are for the LED group relative to the CWF group. A decrease in LED amplitude with regard to CWF is a negative value (—); an increase is represented by a positive value.