Free radical markers after 3 months.

Results are presented as median (25%-quartile/75%-quartile). *indicates statistical significance vs. control (empty defect). Additional significant differences are described in the manuscript. SOD = superoxide dismutase, MDA = malondialdehyde, GSH = glutathione. PLA = polylactic acid. BG20 = PLA + 20% bioglass, BG40 = PLA + 40% bioglass. EPC = endothelial progenitor cells, MSC = mesenchymal stem cells, dMSC = osteogenic predifferentiated MSC.