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Western blotting analysis of osteocalcin and osteopontin expression for PMSCs cultured on PCEC nanofiber scaffolds. a PMSCs seeded in 6-well plate and treated with DMEM–HG with 10 % FBS as negative control; b PMSCs seeded on PCEC nanofibers and treated with DMEM–HG with 10 % FBS; c PMSCs seeded in 6-well plate and treated with osteogenic differentiation medium as positive control; d PMSCs seeded on PCEC nanofibers and treated with osteogenic differentiation medium
