203676.fig.003a
(a)
203676.fig.003b
(b)
Figure 3: MTT cytovitality test (at 24 to 48 to 72 hours) for the HeLa cells (a) and BJ cells (b), interacting with culture medium (i.e., not treated, NT) and different concentration of PECs. Representative measurements of three distinct sets of data have been reported (t-Student test, P < 0.05).