Fig. 2

MK increases NO production in HUVECs. A MK (0.1 μM) treatment without inhibitors. B After 5 min, MK (0.1 μM) was coincubated with the eNOS inhibitor L-NAME (30 mM). NO production was quantified using DAF-2. The values are expressed as the means ± SEM (n = 3). *P < 0.05, **P < 0.01 vs. the control group, and #P < 0.05 vs. the MK group