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[Preprint]. 2025 Dec 22:2025.12.06.25341754. [Version 3] doi: 10.64898/2025.12.06.25341754

Table 3:

Mixed Model Results for Longitudinal Orexin Peptides

Percent of Baseline (23:00-11:00)
OXA (RIA)
Factor Pairwise Comparison Mean Difference F (df) p-value
Intervention SD vs. C +8.22% 7.3 (1,32) 0.011
Time 1.15 (5,32) 0.357
Intervention x Time 1.6 (5,32) 0.181
Prepro-Orexin (MS)
Factor Pairwise Comparison Mean Difference F (df) p-value
Intervention SD vs. C +23.97% 22.5 (1,32) <0.001
Time 0.53 (5,32) 0.755
Intervention x Time 0.3 (5,32) 0.907
Long OXA with Intact N-Terminal (MS)
Factor Pairwise Comparison Mean Difference F (df) p-value
Intervention SD vs. C +38.7% 22.1 (1,32) <0.001
Time 3.3 (5,32) 0.017
Intervention x Time 0.16 (5,32) 0.976
Short OXA with Intact N-Terminal (MS)
Factor Pairwise Comparison Mean Difference F (df) p-value
Intervention SD vs. C +33.6% 14.4 (1,33) <0.001
Time 1.4 (5,33) 0.263
Intervention x Time 1.6 (5, 33) 0.200
Long OXB with Truncated N-Terminal (MS)
Factor Pairwise Comparison Mean Difference F (df) p-value
Intervention SD vs. C +21.12% 8.4 (1,32) 0.007
Time 1.5 (5,32) 0.220
Intervention x Time 0.58 (5,32) 0.718
Short OXB with Truncated N-Terminal (MS)
Factor Pairwise Comparison Mean Difference F (df) p-value
Intervention SD vs. C +29.35% 35.9 (1,32) <0.001
Time 2.2 (5,32) 0.085
Intervention x Time 0.4 (5,32) 0.846
 
Orexin Stable Isotope Labeling Kinetics and Newly-Generated Orexin Peptides (07:00-19:00)
Long OXB (Normalized TTR%)
Factor Pairwise Comparison Mean Difference F (df) p-value
Intervention SD vs. C +0.014% 8.174 (1,14) 0.013
Time 19.05 (3,14) <0.001
Intervention x Time 0.876 (3,14) 0.477
Newly-Generated Long OXB with Truncated N-Terminal (MS)
Intervention SD vs. C +0.967 pg/ml 34.61 (1,14) <0.001
Time 20.62 (3,14) <0.001
Intervention x Time 2.786 (3,14) 0.080

OXA: orexin-A; OXB: orexin-B; SD: sleep deprived; C: control; MS: mass spectrometry; TTR: tracer-tracee ratio; RIA: radioimmunoassay; pg: picogram; ml: milliliter