Table 2.
Retinoic acid activity levels in the liver and lung of rats.a
| Rat no. | Treatment of rat with at-RA (mg/Kg body weight) | at-RA levels (nmol/g tissue)α | |
|---|---|---|---|
| Liver | Lung | ||
| 1 | 0 | 189 ± 18 | 2.62 ± 0.11 |
| 2 | 1 | 109 ± 07 | 2.91 ± 0.23 |
| 3 | 2 | 148 ± 07 | 2.68 ± 0.30 |
| 4 | 5 | 197 ± 35 | 3.62 ± 0.53 |
a
The hexane extract from the rat liver and lung samples (see Section 12.2) were dried and dissolved in ethanol before incubation with HepG2 cells for luciferase assay using at-RA at different concentrations as the reference standards (Mean ± SD).