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. Author manuscript; available in PMC: 2019 Mar 1.
Published in final edited form as: Semin Nephrol. 2018 Mar;38(2):142–150. doi: 10.1016/j.semnephrol.2018.01.005

Figure 3. Net Renal Release of Select Metabolites.

Figure 3

Aortic and renal venous levels for creatinine, serine, arginine, and tyrosine, reported as peak areas detected by the mass spectrometer. The uniform decrease in creatinine is a positive control, consistent with renal clearance. Serine and arginine increased from aorta to renal vein in all nine individuals, whereas tyrosine increased in seven individuals (P < 0.001 for all three metabolites).