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PBDE exposures and NPC proliferation. Relative BrDU uptake, a measure of cell proliferation, in NPCs exposed to BDE-47, BDE-99, or 0.1% DMSO (Veh) for 24 h. Percentages are expressed as average ratios in fluorescence intensity between each exposure group and the media-only control (=100%; n = 6 independent experiments). Significant differences (p < .05) due to PBDE exposure are indicated by double-cross (‡, ANOVA) or asterisk (t test).
