Figure 3From: Protective effect of aqueous extract from Spirulina platensis against cell death induced by free radicals Effect of a) DPPH and b) ABTS on the viability of 3T3 cells. The cells were incubated with DPPH or ABTS for 24 h before being assessed for their viability, compared to those treated with dimethyl sulfoxide (DMSO) or ethanol (EtOH) alone (negative control). Data presented as mean ± standard deviation (n = 3). *Denotes significant difference (p < 0.05) from the control (cells + 0.3% DMSO/EtOH).Back to article page