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(A) The mRNA expression of ligament-related genes and bone-related genes were detected by qRT-PCR (B) The protein levels of ligament-related genes and bone-related proteins were detected by Western blot. Note: Group A: 0 ng/ml FGF-2; Group B: 10 ng/ml FGF-2; Group C: 20 ng/ml FGF-2; and Group D: 40 ng/ml FGF-2. qRT-PCR = quantitative real-time reverse transcription PCR; FGF-2 = fibroblast growth factor 2.
