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The Effect of AICAR on p21. The p21 status and response to AICAR was investigated in all 3 cell types by Western blotting. Results are presented as blots (A) and as histograms as a result of densitometric scanning (B); n=3 independent experiments. Densitometric scanning permitted the application of statistical analysis of the scans. In each case; *= p < 0.05, ** = p < 0.01, *** = p < 0.001
