Fig. 8From: Precision 3D printed meniscus scaffolds to facilitate hMSCs proliferation and chondrogenic differentiation for tissue regenerationChondrogenic differentiation of hMSCs cultured for 14 days on scaffolds assessed by qRT- PCR analysis of relative gene expression levels (n = 3). GAPDH was used as an internal control, and the values are given as the fold change compared to PUS/GM group. *p < 0.05 and **p < 0.01Back to article page