Fig. 4.
Fig. 4. Rapidly proliferating HUVECs were grown to 70% confluence on poly-D-lysine–coated coverslips and incubated in culture medium with and without As2O3 for 24 hours. / (A) Control cells. (B) The photographs (original magnification 500 ×) show strongly increased TUNEL staining after treatment with 5 × 10−6 mol/L As2O3 in comparison with control cells.

Rapidly proliferating HUVECs were grown to 70% confluence on poly-D-lysine–coated coverslips and incubated in culture medium with and without As2O3 for 24 hours.

(A) Control cells. (B) The photographs (original magnification 500 ×) show strongly increased TUNEL staining after treatment with 5 × 10−6 mol/L As2O3 in comparison with control cells.

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