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Inhibitory activities of khat on the activated NO production in RAW 264.7 macrophages. Quercetin was used as a standard drug.
| Khat Concentration (μg/mL) | NO (μM) | % NO inhibition | % Cell viability |
|---|---|---|---|
| 30 | 0.78 ± 0.21 | 87.5 | 80 |
| 15 | 1.3 ± 0.05 | 80 | 78 |
| 7.5 | 2.9 ± 0.09 | 54 | 70 |
| 3.75 | 5.73 ± 0.03 | 8 | 68 |
| Control | 6.27 ± 0.28 |
