Figure 4.

OMW extracts protect HUVECs (A) and HPASMCs (B) from H₂O₂-induced cell death. Cells were exposed for 3 h to the indicated concentrations of OMW extracts and then incubated in the absence (CTRL) or presence of 75 µM H₂O₂. Cell viability was assessed as reported in Materials and Methods. HUVECs, human umbilical vein endothelial cell; HPASMCs, human pulmonary artery smooth muscle cells; L, liquid extract; S, solid extract; CTRL, untreated cells; H₂O₂, hydrogen peroxide; * significantly different from CTRL; # significantly different from H₂O₂. Values are shown as mean ± SD and expressed as a percentage of the CTRL. (n = 4).