Effect of ASTA on expression and activity of HO-1.

<p>A) Western blot and quantitative analysis for HO-1 expression, actin being used as loading control; data shown are means ± SD, *<i>p</i><0.05 compared with control cells; ^§<i>p</i><0.05 compared with LPS or ASTA treated cells; data were from at least three independent experiments, each performed in triplicate. B) Mean HO activity (nmol/bilirubin/mg protein)/h ± SD, n = 3) detectable in homogenates obtained from U937 cells: untreated; treated with LPS, ASTA and LPS+ASTA. *<i>p</i><0.05 compared with control cells; ^§<i>p</i><0.05 compared with LPS or ASTA treated cells.