GSH Levels (μmoles/mg protein) in HLMs following exposure to genistein for 4, 6, 18 and 24 hr. respectively. Each cell for each flavonoid ± standard deviation in this and other tables (i.e., Table 2 and Table 3) in this article represent mean the for 3 different experiments for each dose level of G tested and, which was assayed in triplicates. Statistical significances denoted by letters, in Table 1 are shown as comparison between the respective control (i.e., without G) and GHLMs treated subgroups for the respective incubation periods.