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. 2021 Sep 6;19:264. doi: 10.1186/s12951-021-00991-5

Fig. 7.

Fig. 7

dECM@exo prevented the degeneration of IVDs. A Images of H&E and safranin O staining from each group. Scale bar = 1 mm. B Immunohistochemical detection of aggrecan and collagen II. C Histological grade was evaluated at 16 weeks. Data are the mean ± SD; *P < 0.05