FIG. 4.
Real-time PCR quantification of chondrogenic marker aggrecan (A) and type II collagen (Col2, B) in MSC-PLCL (white bar) and PLCL/chitosan (gray bar) constructs. Expression was normalized to GAPDH and presented as fold changes relative to level in undifferentiated MSC. Data shown are means±SD (n=5). *p<0.05 significant increase in PLCL/chitosan construct compared with PLCL construct. **p<0.05 significant increase between time points.