Hypoxia Helps Maintain Nucleus Pulposus Homeostasis by Balancing Autophagy and Apoptosis
Effect of hypoxia on nucleus pulposus (NP) cell viability. (a) Viability was evaluated using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl-tetrazolium bromide (MTT) assay. Data are presented as the . (b) Alizarin Red S staining to assess morphological changes in hypoxic and aging conditions. .,, and versus 24 h; #,##, and ### versus C-NP cells.
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