Figure 5From: Caveolin-1 expression and stress-induced premature senescence in human intervertebral disc degenerationCorrelation between caveolin-1 and p16INK4a gene expression in degenerate nucleus pulposus samples. Caveolin-1 and p16INK4a gene expression (copy number per 100 ng cDNA normalised to 18S) analysed by quantitative real-time reverse transcription-polymerase chain reaction. Non-parametric linear regression analysis (P = 0.02; R2 = 0.4725).Back to article page