Fig. 5From: Water extract of Semecarpus parvifolia Thw. leaves inhibits cell proliferation and induces apoptosis on HEp-2 cellsIncrease in nitric oxide levels at different concentrations of Semecarpus parvifolia leaves against HEp– 2 cells (mean ± SD; n = 3). Nitric oxide content of the treated cells relative to that of untreated cells was used to calculate the relative increase of NOBack to article page