Figure 1

Simple correlation between age and serum biomarkers (sCD40L, G-CSF, GM-CSF, and TGF-α in pg/mL). The × axis is age. The Y axis consists of log transformed sCD40L, G-CSF, GM-CSF and TGF-α. Simple correlation analysis was performed between age and the cytokines. Age showed significant positive correlation with log transformed sCD40L (R = 0.257, P = 0.007) and log transformed TGF-α (R = 0.232, P = 0.015), whereas age showed significant negative correlation with log transformed G-CSF (R = -0.232, P = 0.016) and log transformed GM-CSF (R = -0.249, P = 0.009).