Table 3.
Blood levels of amino acids compared with intake levels.
| BLOOD LEVELS (mmol/L) | INTAKE (mg/Day) | |||||
|---|---|---|---|---|---|---|
| CD Median (IQR) | HS Median (IQR) | p | CD Median (IQR) | HS Median (IQR) | p | |
| TAU | 78.0 (62.0–96.0) | 93.0 (82.0–101.0) | <0.001 # | |||
| ASP | 3.0 (3.0–4.0) | 2.8 (2.0–3.0) | 0.0337 * | 3456.8 (2336.6–4453.1) | 3535.7 (2794.3–4302.2) | 0.4897 |
| THR | 109.0 (89.0–140.0) | 143.0 (113.0–163.0) | 0.0012 # | 1689.1 (1157.0–2264.6) | 1713.2 (1392.1–2090.2) | 0.6744 |
| SER | 103.0 (86.0–117.0) | 115.5 (100.0–133.0) | 0.0213 * | 2042.1 (1423.4–2770.5) | 2116.9 (1633.5–2723.7) | 0.5882 |
| GLU | 651.0 (583.0–768.0) | 775.0 (690.0–887.0) | 0.0015 # | 8681.8 (6533.3–12266.6) | 9189.1 (6967.8–11936.8) | 0.6208 |
| PRO | 191.5 (153.0–247.0) | 222.5 (166.0–263.0) | 0.1685 | 3006.2 (2222.5–4155.8) | 3402.6 (2232.4–4093.2) | 0.5256 |
| GLY | 232.5 (191.0–275.0) | 227.5 (195.0–298.0) | 0.5316 | 1797.2 (1191.7–2362.2) | 1706.8 (1355.8–2156.4) | 0.896 |
| ALA | 301.5 (243.0–367.0) | 378.5 (300.0–417.0) | 0.0126 * | 2098.4 (1363.9–2792.9) | 1951.1 (1643.8–2492.0) | 0.9256 |
| VAL | 198.0 (168.0–219.0) | 229.0 (197.0–305.0) | <0.001 # | 2335.1 (1535.9–2970.9) | 2435.7 (1954.5–3010.2) | 0.5015 |
| CYS | 38.0 (34.0–48.0) | 48.5 (41.0–56.0) | 0.0017 # | 639.6 (459.6–903.8) | 662.7 (523.0–853.4) | 0.5627 |
| MET | 21.0 (17.0–25.0) | 25.0 (21.0–29.0) | 0.0016 # | 1049.8 (707.8–1335.6) | 1116.8 (829.0–1324.6) | 0.6208 |
| ILE | 61.5 (50.0–72.0) | 65.0 (51.0–78.0) | 0.2507 | 2037.9 (1323.9–2599.1) | 2044.8 (1633.0–2525.2) | 0.695 |
| LEU | 129.5 (106.0–149.0) | 147.0 (111.0–175.0) | 0.0483 * | 3496.6 (2385.5–4690.3) | 3687.2 (2720.9–4568.7) | 0.6608 |
| TYR | 58.5 (48.0–73.0) | 64.0 (58.0–72.0) | 0.0866 | 1878.7 (1065.1–3199.5) | 2030.5 (1411.7–2334.0) | 0.5754 |
| PHE | 57.0 (48.0–67.0) | 59.5 (53.0–66.0) | 0.3674 | 1958.7 (1380.3–2679.3) | 2178.3 (1586.4–2657.3) | 0.4608 |
| ORN | 90.5 (69.0–108.0) | 81.0 (65.0–104.0) | 0.3153 | |||
| HIS | 69.5 (57.0–80.0) | 81.0 (73.0–87.0) | <0.001 # | 1327.8 (897.9–1752.3) | 1389.2 (1045.5–1689.7) | 0.6881 |
| ARG | 41.5 (33.0–62.0) | 61.5 (45.0–72.0) | 0.0072 # | 2295.8 (1521.2–3061.8) | 2265.4 (1792.8–2786.5) | 0.758 |
| LYS | 173.5 (140.0–195.0) | 181.0 (161.0–201.0) | 0.1975 | 2843.0 (1875.8–3658.9) | 2905.2 (2394.0–3674.6) | 0.634 |
| CIT | 31.0 (25.0–37.0) | 37.0 (31.0–48.0) | 0.0057 # | |||
Statistically significant at * = p < 0.05 or # = p < 0.01. TAU: Taurine, ASP: Aspartate, THR: Threonine, SER: Serine, GLU: Glutamic acid, PRO: Proline, GLY: Glycine, ALA: Alanine, VAL: Valine, CYS: Cysteine, MET: Methionine, ILE: Isoleucine, LEU: Leucine, TYR: Tyrosine, PHE: Phenylalanine, ORN: Ornithine, HIS: Histidine, ARG: Arginine, LYS: Lysine, CIT: Citrulline.