Oxidative damage in plasma, liver and brain tissuesa.
SWM | FWM | FWM + LDT | FWM + HDT | |
---|---|---|---|---|
Plasma | ||||
PC (nmol l−1) | 2.16 ± 0.11bc | 1.95 ± 0.15c | 2.79 ± 0.45b | 3.82 ± 0.23a |
DT (pg mL−1) | 106.91 ± 5.12b | 68.56 ± 9.35c | 129.14 ± 9.86b | 171.92 ± 3.32a |
3-NT (nmol l−1) | 15.34 ± 2.78b | 12.86 ± 1.77b | 17.15 ± 3.65b | 27.19 ± 2.12a |
AOPPs (pmol l−1) | 276.61 ± 25.18b | 208.32 ± 12.66c | 317.86 ± 18.47b | 448.82 ± 11.35a |
Hippocampus | ||||
PC (nmol g−1 prot) | 3.83 ± 0.23b | 3.02 ± 0.25c | 4.35 ± 0.35b | 5.77 ± 0.21a |
DT (pg mg−1 prot) | 109.45 ± 8.45c | 78.50 ± 3.36d | 149.45 ± 7.11b | 178.66 ± 8.90a |
3-NT (nmol g−1 prot) | 61.42 ± 1.17b | 50.31 ± 5.69c | 77.38 ± 7.12a | 84.77 ± 6.32a |
AOPPs (pmol g−1 prot) | 373.43 ± 17.53c | 243.65 ± 12.36d | 454.32 ± 15.69b | 507.77 ± 11.31a |
Hypothalamus | ||||
PC (nmol g−1 prot) | 3.01 ± 0.12b | 2.26 ± 0.17c | 3.52 ± 0.45b | 4.97 ± 0.31a |
DT (pg mg−1 prot) | 38.17 ± 4.11b | 25.86 ± 3.21c | 40.76 ± 11.75b | 67.23 ± 7.32a |
3-NT (nmol g−1 prot) | 48.46 ± 2.68b | 45.06 ± 4.12b | 53.07 ± 2.32b | 68.21 ± 3.11a |
AOPPs (pmol g−1 prot) | 230.75 ± 19.14bc | 215.57 ± 12.36c | 269.10 ± 7.13b | 343.34 ± 21.36a |
Amygdala | ||||
PC (nmol g−1 prot) | 2.86 ± 0.23b | 2.66 ± 0.15b | 2.99 ± 0.29b | 3.55 ± 0.14a |
DT (pg mg−1 prot) | 94.21 ± 8.19ab | 76.20 ± 10.16b | 104.32 ± 4.34a | 118.77 ± 15.75a |
3-NT (nmol g−1 prot) | 41.03 ± 1.98c | 36.34 ± 2.11d | 50.35 ± 3.05b | 61.31 ± 1.25a |
AOPPs (pmol g−1 prot) | 262.64 ± 17.69b | 241.94 ± 26.68b | 263.60 ± 12.36b | 436.44 ± 18.32a |
Cerebral cortex | ||||
PC (nmol g−1 prot) | 2.45 ± 0.16c | 2.64 ± 0.17c | 3.26 ± 0.33b | 4.15 ± 0.24a |
DT (pg mg−1 prot) | 98.18 ± 10.31bc | 79.45 ± 5.08c | 113.86 ± 2.47b | 140.68 ± 10.06a |
3-NT (nmol g−1 prot) | 37.62 ± 2.12c | 32.15 ± 1.51c | 48.23 ± 3.08b | 56.12 ± 2.54a |
AOPPs (pmol g−1 prot) | 346.14 ± 7.98c | 289.22 ± 9.36d | 442.51 ± 7.98b | 520.74 ± 10.14a |
Liver | ||||
PC (nmol g−1 prot) | 2.78 ± 0.12c | 2.03 ± 0.25d | 3.54 ± 0.13b | 4.79 ± 0.25a |
DT (pg mg−1 prot) | 112.14 ± 11.12b | 92.32 ± 15.23b | 114.33 ± 6.65b | 134.31 ± 4.28a |
3-NT (nmol g−1 prot) | 43.68 ± 4.07b | 40.67 ± 1.76b | 55.12 ± 2.25a | 59.03 ± 3.67a |
AOPPs (pmol g−1 prot) | 301.25 ± 12.12b | 226.94 ± 8.69c | 311.86 ± 11.12b | 370.77 ± 13.36a |
PC, protein carbonyl; DT, dityrosine; 3-NT, 3-nitrotyrosine; AOPPs, advanced oxidative protein products; SWM, 180 °C spray-dried whole milk group, FWM, freeze-dried whole milk group, FWM + LDT freeze-dried whole milk + low dityrosine group, FWM + HDT, freeze-dried whole milk + high dityrosine group. Data are expressed as the mean ± SEM (n = 10 rats per group). Means among bars without a common letter differ, P < 0.05.