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. 2022 Feb 19;13:73. doi: 10.1186/s13287-022-02744-z

Fig. 10.

Fig. 10

Melatonin-preconditioning DPSCs promoted bone defect healing in vivo. Histological analysis of regenerative tissues with H&E staining. The black arrowheads indicate osteoblasts at the MBCP–new bone interface. Scale bar = 100 μm. (NB new bone, CT connective tissue, BM bone marrow, MBCP scaffold, DPSCs dental pulp mesenchymal stem cells, Mel melatonin, H&E hematoxylin and eosin)