Fig. 5: Uric acid regulation.
From: Physiologic Homeostasis in a Living Human after Pig Kidney Xenotransplantation

A Serum uric acid levels post-xenotransplantation (light green shaded area represents the normal range). B Fractional excretion of uric acid (green line) and 24 hour urinary uric acid levels (red bars). The light green area represents the normal fractional excretion range, while the light red area represents the normal 24 hour urinary uric acid excretion range. Source data are provided as a Source Data file. FEUric acid, fractional excretion of uric acid.