Figure 10From: Effects of TGF-β1 and IGF-1 on proliferation of human nucleus pulposus cells in medium with different serum concentrationsThe morphology of human NP cells under 10%FBS conditions. 10%FBS, 100 μg/L IGF-1, the morphology of NP cells were similar to the 10 μg/L TGF-β1 group. (×100).Back to article page