showed a trendp < 0.05
As a result, the proliferation rate in the treatment group (1.0 μM NaAsO 2 ) was significantly higher at passages 21, 28, and 35 than that in the passage-matched control group (0.0 μM NaAsO 2 ) and showed a trend of increasing passage by passage ( p < 0.05) ( Figure 1 a).