Fracture healing is the biologically orchestrated process by which bone restores its structural integrity following a break, involving overlapping inflammatory, reparative, and remodeling phases. After fracture, hematoma formation and inflammation recruit immune cells and mesenchymal progenitors, which differentiate into chondrocytes and osteoblasts under tightly regulated molecular signaling (e.g., BMPs, Wnt, VEGF). Soft callus composed of cartilage and woven bone bridges the fracture gap, then undergoes endochondral and intramembranous ossification to form hard callus. Subsequent remodeling, driven by coupled osteoclast and osteoblast activity, gradually restores lamellar bone architecture, mechanical strength, and original geometry.
Experiments conducted in Brazil using laboratory rats have shown that graphene-based structures can act as a powerful ally in bone regeneration. These structures are made of sheets of the chemical element carbon that are ...
Bio & Medicine
Apr 1, 2026
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317
In a study published in Cell Research, researchers have identified a fibrous-layer resident subpopulation of P-SSCs labeled by Angptl7. They found that these cells are crucial for bone fracture repair by mediating endochondral ...
Cell & Microbiology
Jan 19, 2026
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20
A research team from the Department of Orthopedics and Traumatology at the University of Hong Kong's LKS Faculty of Medicine (HKUMed) has successfully developed a novel elastic calcium phosphate material that mimics the structure ...
Bio & Medicine
Oct 13, 2025
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28
A University of Regina research team has made discoveries about how dinosaurs may have healed from injuries when they examined the preserved blood vessel structures inside a rib bone from Scotty, the famous Tyrannosaurus ...
Biotechnology
Jul 7, 2025
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58
