Fig. 1.

Effects of Ang-(1–7) on the viability of NPC-TW01 cells in vitro. a Cell viability was determined by MTT assay after treatment with various concentrations of Ang-(1–7) for 24, 48, or 72 h. *p < 0.05 vs. control; ^***p < 0.01 vs. control; ^#p < 0.05 vs. 1 μM Ang-(1–7) and ^###p < 0.01 vs. 1 μM Ang-(1–7) at 24~72 h. b Cell viability was determined after treatment with various concentrations of Ang-(1–7) (0, 0.04, 0.2, and 1 μM) for 72 h and with two concentrations of A779 (0.1 and 1 μM). *p < 0.05 and ^***p < 0.01 vs. Ang-(1–7) treated group (0.04, 0.2, and 1 μM)