Table 2.
Effect of arginine, N-carbamylglutamate and glutamine on antioxidant status in the jejunum of rats under oxidative stress.1
| Item | CG2 | DT2 | DT + ARG2 | DT + NCG2 | DT + GLN2 |
|---|---|---|---|---|---|
| T-AOC, U/mg protein | 0.96 ± 0.06 | 0.78 ± 0.11c | 1.06 ± 0.02ab | 0.85 ± 0.04bc | 1.00 ± 0.08a |
| GSH, mg/mg protein | 6.01 ± 0.42 | 2.61 ± 0.17c∗ | 6.95 ± 0.61b | 6.38 ± 0.40b | 8.34 ± 0.37a |
| ASA, U/g protein | 92.87 ± 4.48 | 89.48 ± 4.60 | 92.03 ± 6.02 | 93.48 ± 7.32 | 90.91 ± 7.01 |
| CAT, U/mg protein | 2.97 ± 0.28 | 1.24 ± 0.08b∗ | 2.99 ± 0.23a | 3.12 ± 0.21a | 3.59 ± 0.34a |
| MDA, nmol/mg protein | 0.98 ± 0.09 | 1.17 ± 0.02a∗ | 1.05 ± 0.03b | 1.06 ± 0.02b | 0.97 ± 0.02c |
| T-SOD, U/mg protein | 0.61 ± 0.03 | 0.58 ± 0.02 | 0.65 ± 0.03 | 0.62 ± 0.04 | 0.62 ± 0.05 |
| AHR, U/mg protein | 72.14 ± 4.24 | 64.60 ± 6.00 | 72.18 ± 6.25 | 76.60 ± 4.87 | 75.44 ± 5.52 |
T-AOC = total antioxidant capacity; GSH = glutathione; ASA = anti-superoxide anion; CAT = catalase; MDA = malondialdehyde; T-SOD = total superoxide dismutase; AHR = anti-hydroxyl radical.
Mean values within a row with the letter (*) are significantly difference (P < 0.05) for comparison between DT and CG. Mean values within a row with different letters (a–c) are significantly difference (P < 0.05) for comparison between DT, DT + ARG, DT + NCG and DT + GLN. Data are stated as mean ± SEM.
CG: control group, DT: diquat treatment, DT + ARG: diquat plus 1% arginine treatment, DT + NCG: diquat plus 0.1% N-carbamylglutamate treatment, DT + GLN: diquat plus 1% glutamine treatment.