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Table 2 Kinetic parameters for xanthine oxidation in HLS9 system. Constants are expressed as the mean ± SE

From: Plumbagin can potently enhance the activity of xanthine oxidase: in vitro, in vivo and in silico studies

PLB μM Km μM Vmax nmol/min/mg Goodness of fit R2 CLint μL/min/mg
0 25.2 ± 2.5 0.033 ± 0.001 0.981 1.3
10 14.7 ± 1.6 0.138 ± 0.003 0.983 9.4
20 15.3 ± 1.1 0.207 ± 0.003 0.993 13.5
40 20.7 ± 3.2 0.303 ± 0.010 0.961 14.6
80 35.2 ± 4.6 0.493 ± 0.016 0.972 14.0