Fig. 7From: Injectable exosome-functionalized extracellular matrix hydrogel for metabolism balance and pyroptosis regulation in intervertebral disc degenerationdECM@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 < 0.05Back to article page