Table 1.

ALP activity of osteogenic rMSCs on β-TCP/PLLA composite with different weight percent of porogen-NaCl (β-TCP/PLLA = 2:1, d = 200-450 µm) (x̅ ± s, n=8)

Groups	ALP (U/mg) 7 d	ALP (U/mg) 14 d
60 wt%	0.13 ± 0.01*	0.20 ± 0.03
70 wt%	0.15 ± 0.00	0.21 ± 0.03
80 wt%	0.10 ± 0.01**,##	0.13 ± 0.01*,#

^*P < 0.05 vs NaCl = 70 wt%;

^**P < 0.01 vs NaCl = 70 wt%.

^#P < 0.05 vs NaCl = 60 wt%;

^##P < 0.01 vs NaCl = 60 wt%.