Fig. 7: Serum TMAO level were up-regulated and positively associated with renal fibrosis and renal M2 polarization.

A 30 CKD patients mean serum TMAO level is statistically higher compared to 12 control(6 renal tumor relatively normal resected tissue and 6 healthy renal tissue), **p < 0.01. B–D CKD renal tissue α-SMA, Collegen I immunohistochemistry images (x50) and fibrotic area% (Masson staining) compared to control (renal tumor resected relatively normal tissue), **p < 0.01. E Immunofluorescence images(x50) on 6 CKD and 6 Con(renal resected) CD80(M1) and CD163(M2), *p < 0.05.