Figure 1
Samples inhibit PTP1B in a dose-dependent manner. Samples inhibit PTP1B in a dose-dependent manner. Different concentrations of the samples (0.002 – 0.1 mUnit/mL) were evaluated using the in vitro PTP1B enzyme assay. The dilution ratio is displayed on a logarithmic scale. The IC50 value was identified from the midpoint (cytotoxic activity = 50%) of the semi-log plot.