Fig. 5From: Astragaloside IV attenuates IL-1β-induced intervertebral disc degeneration through inhibition of the NF-κB pathwayAS IV alleviates IDD in vivo. a The tail IVDs of rats were assessed by MRI. b Quantitative analysis of IDD using the Pfirrmann MRI grading system. c H&E and SO staining of the rat IVDs. Scale bar: 1 mm. d The histological scores of the rat IVDs. Data are expressed as means ± SD. *P < 0.05 versus control group. #P < 0.05 versus IDD groupBack to article page