Cell proliferation rate in Normal and PE-PDMSCs.

<p>Cell proliferation in Normal and PE-PDMSCs was assessed by MTT assay at time 0, 48 and 120 hours of culture. Results are expressed as means ± SE of six independent samples. Statistical significance has been considered as p<0.05. (*) = statistical significance among Normal PDMSCs time points; (**) = statistical significance between Normal and PE-PDMSCs at 120 hours of culture. (ns) = not statistically significant, referred to comparisons among PE PDMSCs time points.