Fig. 1
Effect of hypoxia on cell viability for optimization of exposure conditions. L6 muscle cells were exposed to varying O2 concentrations for different times and cell viability was determined by MTT assay. Values are mean ± SD. a = 0.5 % O2 vs. 3 % O2, b = 0.5 % hyp vs. 1 % hyp, c = 1 % hyp vs. 3 % hyp, *Significantly different (p < 0.01)