Figure 1.

Cell viability after exposure to H₂O₂ and CSE. HUVECs were incubated for 16 hours in 96-well plates with or without 1–500 μM H₂O₂ or 0.5–5% CSE. Non-adherent cells were removed, and the number of adherent cells was counted by propidium iodide staining and spectrofluorimetry (13). **p < 0.01 vs cells not exposed to H₂O₂ or CSE.