Rate of depentylation of 100 μM MPN by microsomes from rat tissues
| Tissue | Microsomes/Tube | No. of Tests | Depentylation Rate |
|---|---|---|---|
| μg protein | pmol PENT/mg protein/min, mean ± S.E. | ||
| Esophagus | 50–100 | 24 | 14.5 ± 2.1 |
| Forestomach | 50–100 | 4 | 0.8 ± 0.3 |
| Glandular stomach | 100 | 4 | 0.4 ± 0.1 |
| Small intestine | 50–100 | 4 | 0 |
| Large intestine | 100 | 6 | 2.7 ± 0.6 |
| Liver | 100 | 10 | 24.9 ± 4.5 |
| Kidney | 50–100 | 4 | 0.1 ± 0 |
| Lung | 50–100 | 4 | 7.0 ± 1.1 |
Results were obtained with four preparations of esophageal microsomes and one preparation each of microsomes from the other listed tissues. Each microsomal preparation was isolated from the tissues of at least two rats.