Fig. 5From: Role of collagen degradation pathway in sphingomyelin synthase 2-deficient mouse skinmRNA expression level of genes related to skin collagen synthesis and degradation in SMS2-deficient and WT mice. a Tgf-β1, b Fli1, c Smad3, d Col1a1, e Tnf-α, f Timp1, and g Mmp13. Data are expressed as the mean ± SD, and statistical analysis was performed with the Student’s t test (*p < 0.05)Back to article page