E/M ratios 2 h after intragastric administration of 100 mg of 13-cis-. 9-cis-, or all-trans-RAL per kg to rats on GD 13
| Sample | RAL Isomer Administered | 13-cis-RA, E/M ratio | 9,13-dicis-RA, E/M ratio | 9-cis-RA, E/M ratio | all-trans-RA, E/M ratio |
|---|---|---|---|---|---|
| 13-cis- | 0.16 | 0.50 | 3.07 | ||
| E/M ratio, 2 h | 9-cis- | 0.011 ± 0.002 | 0.13 ± 0.03 | 2.76 ± 1.65 | |
| all-trans- | 0.21 ± 0.13 | 0.57 ± 0.55 | 2.56 ± 1.33 |
Mean ± S.D. (n = 2–4).