Fig. 5.

NO release from In₂O₃-treated cells. RAW 264.7 cells were treated with 20 µg/ml of In₂O₃ for indicated durations at 37°C. NO₂^– and NO₃^– levels in the culture supernatant were measured by the Griess method as described in Materials and Methods section. The data were expressed as means ± SD of 4 independent experiments. **p <0.01 compared with control by Student’s t-test.