Fig. 1.
Effect of homocysteine on DNA synthesis. Primary HUVEC were incubated in EC medium in the absence or presence of increasing concentrations of homocysteine for 18 hours. [3H]thymidine incorporation was measured during the last 4 hours. Values represent the mean ± SD from 3 wells from 3 separate experiments. * P < .05 v untreated HUVEC, **P< .01.