To observe the effect of hypoxia (physical hypoxia) on the angiogenic ability of ADSCs, they were cultured on Matrigel matrix gel (BD356234) using EGM-2 culture medium (Lonza, Walkersville, MD, USA), resuspended in EGM-2 culture medium, and inoculated into Matrigel matrix gel-treated 24-well plates containing 8 × 104 cells/well. The cells were placed in a hypoxic or normoxic incubator and imaged under a microscope after 3 h.
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