Table 9.
Effects of aqueous rooibos extract, RPO, and/or their combination on markers of lipid peroxidation in the plasma and liver of all experimental rats.
| Treatment | Plasma | Liver | ||
|---|---|---|---|---|
| CD (nmol/L) | MDA (µmol MDA/L) |
CD (nmol/g tissue) |
MDA (µmol MDA/g tissue) |
|
| Negative control (water) | 71.67 ± 2.43 | 2.44 ± 0.09 | 7.29 ± 0.15 | 0.37 ± 0.09 |
| Positive control (t-BHP) | 89.75 ± 1.30* | 2.72 ± 0.16 | 8.98 ± 0.12* | 0.62 ± 0.04** |
| RTE | 72.60 ± 1.24 | 2.55 ± 0.07 | 7.54 ± 0.17 | 0.10 ± 0.01* |
| RPO | 108.89 ± 13.4* | 2.52 ± 0.11 | 7.50 ± 0.12 | 0.10 ± 0.004* |
| RTE + RPO | 102.11 ± 4.91* | 2.49 ± 0.07 | 7.44 ± 0.17 | 0.11± 0.003* |
| RTE + t-BHP | 101.69 ± 5.18# | 2.61 ± 0.11 | 7.56 ± 0.21# | 0.10 ± 0.01∗# |
| RPO + t-BHP | 103.67 ± 4.67# | 2.45 ± 0.13 | 7.98 ± 0.22# | 0.16 ± 0.06∗# |
| RTE + RPO + t-BHP | 106.83 ± 2.15# | 2.42 ± 0.09 | 7.79 ± 0.11# | 0.11 ± 0.01∗# |
Values in columns are mean ± SEM of 8–10 rats per group. *Significantly different from negative control (P < 0.05). **Marginally different from negative control (P < 0.1). #Significantly different from positive control (P < 0.05). CD: conjugated diene, MDA: malondialdehyde, RTE: aqueous rooibos extract, RPO: red palm oil, t-BHP: tert-butyl hydroperoxide.