TABLE 2.
Colistin MICs of wild-type and laboratory-generated colistin-resistant strains when treated with different concentrations of capsaicin.
| Strain | Colistin MIC (μg/mL) at different Capsaicin concentrations (μg/mL) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Only colistin | Capsaicin (256) | Capsaicin (128) | Capsaicin (64) | Capsaicin (32) | Capsaicin (16) | ||||||
| MIC | Fold change | MIC | Fold change | MIC | Fold change | MIC | Fold change | MIC | Fold change | ||
| ATCC19606 | 0.5 | – | – | – | – | – | – | – | – | – | – |
| ATCC19606-R | 1,024 | 0.5 | 2048 | 0.5 | 2048 | 0.5 | 2048 | 0.5 | 2048 | 8 | 128 |
| Ab13 | 1 | – | – | – | – | – | – | – | – | – | – |
| Ab13-R | 128 | 1 | 128 | 4 | 32 | 4 | 32 | 4 | 32 | 16 | 8 |
| Ab156 | 2 | – | – | – | – | – | – | – | – | – | – |
| Ab156-R | 64 | 0.5 | 128 | 0.5 | 128 | 0.5 | 128 | 0.5 | 128 | 4 | 16 |