Fig. 5From: Human adipose liquid extract induces angiogenesis and adipogenesis: a novel cell-free therapeutic agentTubule formation of HUVECs in the presence of ALE. a Tubule formation of HUVECs with ALE treatment at different time points. b Tubule formation of HUVECs in positive control and negative control groups at 20 h. c Quantification of tubular structures in all groups at 20 h. ***P < 0.001. Scale bars = 200 μmBack to article page