Table 2.
Temperature |
20°C |
37°C |
||||
---|---|---|---|---|---|---|
Volume of added hyperpolarized urea | 2 mL | 1 mL | 1 mL + cold urea | 2 mL | 1 mL | 1 mL + cold urea |
T1,e (s) | 14.4 ± 0.3 | 32 ± 4 | 19 ± 3 | 32 ± 4 | 41 ± 2 | 39 ± 3 |
T1,i (s) | 13.0 ± 0.6 | 3.1 ± 0.1 | 4.5 ± 0.5 | 10 ± 1 | 9.1 ± 0.3 | 9.2 ± 0.5 |
Km,e (mmol L−1) | 42 ± 5 | 48 ± 10 | 27 ± 4 | 38 ± 10 | 33 ± 8 | 35 ± 10 |
Km,i (mmol L−1) | 11 ± 2 | 12 ± 3 | 15 ± 5 | 14 ± 4 | 18 ± 5 | 30 ± 10 |
Kapp,eq (mmol L−1) | 141 | 146 | 106 | 130 | 80 | 76 |
Vmax,e (mmol L−1 s−1) | 5.8 ± 0.7 | 33 ± 2 | 18.2 ± 0.9 | 22 ± 3 | 16 ± 1 | 18 ± 2 |