Table 1.
Oxidative stress parameters in rats infused by LPS (n = 12) and in healthy rats (n=12) in serum, milk and mammary tissue supernatant. Results are expressed as mean ± standard deviation.
| Parameters * | Control group | Mastitic group | p -value |
|---|---|---|---|
| SOD: Mammary tissue (U mg-1 ) | 21.70 ± 0.27 | 21.13 ± 0.21 | p < 0.05 |
| SOD: Milk (U mL -1 ) | 4.14 ± 0.12 | 3.84 ± 0.11 | p < 0.01 |
| SOD: Serum (U mL -1 ) | 2.06 ± 0.05 | 1.87 ± 0.09 | p < 0.01 |
| GPx: Mammary tissue (nmol mg -1 per min) | 29.64 ± 0.51 | 23.46 ± 0.20 | p < 0.01 |
| GPx: Milk (nmol mL -1 per min) | 19.38 ± 0.23 | 15.40 ± 0.24 | p < 0.01 |
| GPx: Serum (nmol mL-1 per min) | 29.81 ± 0.34 | 26.35 ± 0.22 | p < 0.01 |
| CAT: Mammary tissue (μmol mg -1 ) | 22.00 ± 0.35 | 18.41 ± 0.17 | p < 0.01 |
| CAT: Milk ( μmol mL -1 ) | 1.52 ± 0.00 | 1.42 ± 0.00 | p < 0.01 |
| CAT: Serum ( μmol mL -1 ) | 1.78 ± 0.01 | 1.50 ± 0.00 | p < 0.01 |
| MDA: Mammary tissue ( μM mg -1 ) | 26.45 ± 0.20 | 47.15± 0.40 | p < 0.01 |
| MDA: Milk (μM mL -1 ) | 30.83 ± 0.38 | 41.87 ± 0.39 | p < 0.01 |
| MDA: Serum (μM mL -1 ) | 14.13 ± 0.17 | 28.02 ± 0.30 | p < 0.01 |
*
SOD = Superoxide dismutase, GPx = Glutathione peroxidase, CAT = Catalase, and MDA = Malondialdehyde.