Fig. 5.
Effect of vitamin D3 compounds on reduction of NBT by HL-60 cells.
HL-60 cells were treated for 4 days with different concentrations (10−8 or 10−7 M) of either 1,25(OH)2D3 or Gemini-19-nor and then analyzed for reduction of NBT. Column indicates mean (± SD) of 3 independent experiments. *P < .05; **P < .01 as determined by Student t test difference compared with the control group.
