Table 6.
Effect of consumption of aqueous extract of green tea for 52 days on the antioxidant activities in the testis, kidney and liver of male Wistar rats.
| Organ | Antioxidant assays (units) | Control | 2% Green tea | 5% Green tea |
|---|---|---|---|---|
| Testis | CAT (µmole/min/mgprot) | 1.5 ± 0.2 | 1.6 ± 0.1 | 1.3 ± 0.1 |
| GSH (mM/mgprot) | 0.1 ± 0.0 | 0.1 ± 0.0 | 0.1 ± 0.0 | |
| SOD (U/mgprot) | 0.4 ± 0.0 | 0.4 ± 0.0 | 0.4 ± 0.0 | |
| MDA (nmole−1/mgprot) | 0.5 ± 0.1 | 0.4 ± 0.0 | 0.5 ± 0.1 | |
| Kidney | CAT (µmole/min/mgprot) | 1.8 ± 0.1 | 2.1 ± 0.2 | 1.6 ± 0.1 |
| GSH (mM/mgprot) | 0.1 ± 0.0 | 0.1 ± 0.0 | 0.1 ± 0.0 | |
| SOD (U/mgprot) | 1.2 ± 0.1 | 1.0 ± 0.1 | 1.2 ± 0.2 | |
| MDA (nmole−1/mgprot) | 2.9 ± 0.3 | 3.1 ± 0.4 | 2.9 ± 0.6 | |
| Liver | CAT (µmole/min/mgprot) | 2.3 ± 0.2 | 1.9 ± 0.2 | 2.4 ± 0.2 |
| GSH (mM/mgprot) | 0.1 ± 0.0 | 0.1 ± 0.0 | 0.1 ± 0.0 | |
| SOD (U/mgprot) | 1.0 ± 0.1 | 1.6 ± 0.3 | 1.2 ± 0.2 | |
| MDA (nmole−1/mgprot) | 3.3 ± 0.4 | 4.2 ± 0.8 | 2.9 ± 0.6 |
Values represented are the mean ± SEM of 6 animals per group.
CAT catalase, GSH glutathione, MDA malondialdehyde, SOD superoxide dismutase.