Figure 3.
A, Fndc5 mRNA in differentiated human primary muscle cells. B, irisin in the conditioned media from human primary muscle cells. C, effect of palmitate on Fndc5 gene expression. D, effect of glucose on Fndc5 gene expression. Data are shown as means ± SEM. *P < 0.05, **P < 0.01, ***P < 0.001.