Fig. 4

Cell viability assay of hWBCs in the presence of polyols. Trypan blue viability assay showing the percentage of hWBCs viable after 3 h of incubation with 1%, 2% or 4% of polyols. The number of clear (viable) and blue (nonviable) cells was calculated and expressed as percent cell viability. Bars represent the average values obtained from four independent experiments compared with the value obtained from (0%) to determine statistical significance; N.S indicates not significant