Inhibitory constants of selected flavonoids for [3H]LTC4 transport
| Flavonoid | Ki |
|---|---|
| μM | |
| Myricetin | 13.3 ± 2.7 (n = 4) |
| Quercetin | 8.1 ± 1.7 (n = 4) |
| Naringenin (+ 3 mM GSH) | 20.8 ± 6.4 (n = 4) |
| Kaempferol | 2.4 ± 1.6 (n = 4) |
| Apigenin (+ 3 mM GSH) | 4.9 ± 0.7 (n = 3) |
Uptake of [3H]LTC4 (10 to 500 nM) was measured in the presence of various concentrations of the flavonoids indicated. Double-reciprocal plots were generated and K i values were calculated from the apparent K m. Each flavonoid was tested at two different concentrations in at least two independent experiments. Values shown are the mean ± S.D.