Table 2.
Sleep parameters in NZB/NZWF1 mice at different time-points during the dark period
| Age, wks |
|||
|---|---|---|---|
| Sleep parameter | 9 | 19 | 29 |
| TST, min | 326 ± 44.4 | 391 ± 32.5a | 373.3 ± 27.1 |
| SWS, min | 272.7 ± 36.1 | 325.3 ± 29a | 309.7 ± 27.5 |
| PS, min | 53.2 ± 8.8 | 65.6 ± 5.5a | 63.6 ± 3.1a |
| SE, % | 45.3 ± 6.2 | 54.3 ± 4.5a | 51.8 ± 3.7 |
| TWT, min | 394 ± 44.4 | 329 ± 32.5a | 346.6 ± 27.1 |
| SST, no. | 278.5 ± 53.4 | 327.5 ± 96.3 | 420.4 ± 26b |
| Arousals, no. | 110.2 ±20.1 | 125.1 ±46.8 | 170.4 ± 15b |
Data are shown as mean ± SE. NZB/NZW refers to a cross between New Zealand Black male and New Zealand White female mice; TST, total sleep time; SWS, slow-wave sleep; PS, paradoxical sleep; SE, sleep efficiency; TWT, total wake time; SST, sleep-stage transitions.
a
Indicates statistical difference from 9 wks of age at P < 0.05.
b
Indicates statistical difference from 9 and 19 wks of age at P < 0.05.