PLA/nHA nanocomposites and metformin rescue aged bone repair by restoring PCK2-regulated mitochondrial metabolism
Bone regeneration declines with age in part because osteoblasts lose mitochondrial metabolic fitness, a defect that conventional osteoconductive scaffolds do not address. The metabolic dysfunction that connects osteoblast senescence to failed repair, however, remains poorly defined. Here, we identify mitochondrial...