The Role of Xanthine Oxidase in Hemodialysis-Induced Oxidative Injury: Relationship with Nutritional Status

Table 3

Comparisons of blood oxidative stress markers, MPO and SOD, activities before and after completion of hemodialysis session.

	GNRI > 90 group; (𝑛 = 35)		GNRI ≤ 90 group; (𝑛 = 15)
	Pre-HD	Post-HD	Pre-HD	Post-HD
Hydroperoxides (μmol/L)	12.9 ± 3.7	5.8 ± 1.7*	11.9 ± 3.0	7.9 ± 2.8^∗,¶
AOPP (μmol/L)	94.6 ± 30.6	95.3 ± 28.7	82.2 ± 29.4	90.4 ± 27.5
Total thiol groups (μmol/L)	371 ± 59	292 ± 60*	296 ± 67^¶	193 ± 62^∗,¶
MPO (U/L)	18.2 ± 6.9	71.3 ± 22.1*	19.6 ± 9.1	68.5 ± 25.9*
SOD (kU/L)	53.4 ± 20.4	101.3 ± 12.7*	75.6 ± 25.2*	107.1 ± 17.2*

Data are mean value ± SD. Differences between GNRI groups or between pre-HD and post-HD values were tested by independent samples 𝑡-test or paired samples 𝑡-test, respectively.
^∗𝑃 < 0.05 post-HD versus correspondent pre-HD value: ^¶𝑃 < 0.05 GNRI ≤ 90 versus GNRI > 90 group, at the same sampling time.