Relative content of urea in different tumor areas, mM/g protein | Intact, n = 6 | 1 - 2 grade, n = 7 (Median; quartiles) | Mann-Whitney U-test | 3-4 grade, n = 13 (Median; quartiles) | Mann-Whitney U-test |
Adjacent non-cancerous tissues (3) | 0.241 (0.211; 0.281) | 1.998 * (1.718; 2.372 | 0.0495 | 1.959 * (0.975; 10.229) | 0.010 |
Peritumoral zone (2) | 0.241 (0.211; 0.281) | 1.621* (1.381; 5.013) | 0.0495 | 1.959 * (0.975; 10.229) | 0.010 |
Tumor (1) | 0.241 (0.211; 0.281) | 1.920 * (1.421; 3.260) | 0.020 | 1.260 * (0.340784314; 2.648) | 0.051 |
Blood plasma | 0.085 (0.08; 0.099) | 0.092 (0.066; 0.110) | 0.664 | 0.105 (0.089; 0.129) | 0.065 |