Chondrogenic cultures of infrapatellar fat pad (IPFP) cells and effects of fibroblast growth factor-2 (FGF-2) expansion. Wet weight (a), glycosoaminoglycan (GAG) content (b), and GAG per DNA (c) per cell aggregate in chondrogenic cultures after 14 days are shown. Data are mean ± standard error of the mean (n = 6). *P < 0.05 (Student paired t test).
Khan et al. Arthritis Research & Therapy 2008 10:R74 doi:10.1186/ar2448