Fig. 4From: May critical molecular cross-talk between indoleamine 2,3-dioxygenase (IDO) and arginase during human aging be targets for immunosenescence control?The proportions between the systemic levels of Total Dimethylated Arginine (Total DMA) and unmodified Arginine (corrected for age) (Y-Axis) shows a marked positive correlation with the elevations of IDO (X-axis)Back to article page