Table 3 Change in amino acid concentrations in whole blood after 24 hours at room temperature and on ice.
| Â | % Change at 24 h at RTa, b | % Change at 24 h on iceb |
|---|---|---|
Group 1 - ≤ 10% change at RT a over 24 h | ||
Citrulline | -4 (-6, 4) | -7 (-9, -4) |
Glutamine | -10 (-13, -10) | -5 (-5, -4) |
Hydroxyproline | 8 (7,9) | -3 (-4,-3) |
Methionine | 0 (-2, 1) | 1 (1, 6) |
Tryptophan | 7 (5, 8) | 4 (4, 6) |
Tyrosine | 8 (5, 12) | -2 (-3, -1) |
Valine | 8 (4, 11) | 1 (0, 1) |
Group 2 - > 10% increase at RT a over 24 h | ||
Alanine | 18 (16,20) | 0 (-1, 0) |
Asparagine | 17 (12, 21) | 0 (-1, +3) |
Glutamate | 593 (563, 612) | 38 (92, 186) |
Glycine | 26 (24, 34) | 3 (2, 4) |
Histidine | 23 (17, 27) | 1 (0, 1) |
Isoleucine | 16 (10, 21) | 0 (-1, 2) |
Leucine | 23 (17, 34) | 2 (1, 5) |
Lysine | 19 (18, 19) | 2 (1, 5) |
Ornithine | 183 (180, 224) | 24 (23,25) |
Phenylalanine | 15 (14,22) | 1 (1, 3) |
Proline | 11 (6,13) | 1 (-1,2) |
Serine | 18 (17,28) | 6 (2,6) |
Taurine | 100 (94, 102) | 126 (120, 147) |
Threonine | 11 (10, 14) | -2 (-5, 0) |
Group 3 - > 10% decrease at RT a over 24 h | ||
Arginine | -43 (-65, -43) | -1 (-5, 4) |