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Metabolic rate of HUVECs submitted to 1 or 10 dyne/cm2 with and without stent application. The figure shows that endothelial cell are healthy independently of flow rate and stent application. The positive control for cytotoxicity, obtained by treating endothelial cells with a compound known to be toxic for cells, showed that died cell have a metabolic rate not exceeding 4–5 in value (data not shown).
