SLC2A9 and hyperuricemia: These findings are in agreement with a previous study by Wen et al. (Wen et al., 2020), which demonstrated that both URAT1 and GLUT9 were upregulated during the early phase (days 3–7) of hyperuricemia, but by day 21, URAT1 expression had returned to baseline, while GLUT9 remained elevated.