Figure 1From: Polyamine depletion induces G1 and S phase arrest in human retinoblastoma Y79 cellsEffects of DFMO on Y79 cell growth. A: Y79 cells were treated with 5 mM DFMO over a 96 h period, and cell number was counted. B: Cell viability was analyzed with trypan blue dye exclusion test. Significantly different compared to 0 h: *p < 0.01Back to article page