Cell viability assays are often used to evaluate the effects of test compounds to study their cytotoxic effect or whether they affect cell proliferation.The MTT reduction assay (3- (4,5-dimethylthiazol-2-yl) -2,5-diphenyltetrazolium bromide) was proposed by Mosman in 1968 [1] and has since been widely used as a viability test in cell cultures. If the metabolic…