Table 1.
Direct quantification of BH4, BH2 and ascorbate in adult rat cardiomyocytes by HPLC with electrochemical detection.
Treatment | BH4 (pmol/mg protein) | BH2 (pmol/mg protein) | Ascorbate (pmol/mg protein) |
---|---|---|---|
Control | 0.066±0.058 | 0.0 | 13.80±2.10 |
TNF-α | 0.039±0.058 | 0.0 | 13.23±0.14 |
IFN-γ | 0.057±0.035 | 0.0 | 13.83±1.92 |
IL-1 | 0.077±0.087 | 0.0 | 12.51±1.57 |
TNF-α + I FN-γ | 0.078±0.093 | 0.0 | 20.68±1.40 |
Adult cardiomyocytes were treated with cytokines 12 hr as follows: TNF-α (20 ng/ml); IFN-γ (50 ng/ml); IL-1 (20 ng/ml). Values represent the mean±SD of at least 3 experiments.