|  | iNOS/GAPDH | eNOS/GAPDH |
---|
PMA | 0 | 0.23 ± 0.02 | 0.44 ± 0.04 |
PMA | 4 | 3.42 ± 0.12* | 2.84 ± 0.14* |
NAC | 0 | 3.51 ± 0.14 | 3.02 ± 0.11 |
NAC | 100 | 0.34 ± 0.04§+ | 2.01 ± 0.09§+ |
NAC | 200 | 0.19 ± 0.06§+ | 1.46 ± 0.07§+ |
NAC | 400 | 0.21 ± 0.04§+ | 0.62 ± 0.08§+ |
- Values are means ± SEM (n = 10). The data include 10 isolated lung preparations. *p < 0.05 PMA 4 vs. PMA 0. §p < 0.05 vs. NAC 0 (dose effects of NAC). +p < 0.05 vs. the values of PMA 4. PMA, phorbol myristate acetate; and NAC, niacinamide. The symbols 0 and 4 denote the dose of PMA at μg/g (lung weight), and 0, 100, 200 and 400 of NAC at mg/g (lung weight). The expression of glyceraldehyde phosphate dehydrogenase (GAPDH) was used as an internal standard.