Figure 2. The effect of the lyophilized Siberian sturgeon ovarian liquid and the extracts of various fish species upon the senescence (A) (the percentage of the SA-β-Gal-positive cells) and the proliferation (B) of the LECH-T cells. A: for the SIPS induction, the cells were treated with 50 μM Н₂О₂ for 1 h and later stained for β-Gal. The result is expressed as the ratio of the proportion of stained cells after incubation with the sample to the proportion of stained cells treated with Н₂О₂ without further addition of the sample. B: cell proliferation was assessed at 96 h after SIPS induction using crystal violet. The result is expressed as the ratio of the optical density after incubation with the sample to the optical density of cells treated with Н₂О₂ without further addition of the sample (mean ± SD). The difference was considered as statistically significant of р < 0.05