Fig. 3

S. jambos blocks ET-1 -stimulated PDI activity in human endothelial cells. Human endothelial cells were incubated in the presence or absence of 100 nM ET-1 with or without S. jambos extract (50 mg/mL). PDI activity was measured in the supernatants after 2 h incubation at 37 °C and expressed as % of the activity described in Methods. Values represent mean ± SD (n = 6). **p < 0.005, *** p < 0.001