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. 2021 Jan 26;26(3):631. doi: 10.3390/molecules26030631

Figure 2.

Figure 2

Protective effect of the examined Pulmonaria extracts (50% methanolic fractions) on the non-enzymatic antioxidant capacity of blood plasma under the 150 µM ONOO−-induced oxidative stress. The assay was based on DPPH• radical scavenging ability as a biomarker of the non-enzymatic antioxidant capacity of blood plasma. DPPH-scavenging efficiency of control (untreated) plasma was assumed as 100% of NEAC; (* p < 0.05; *** p < 0.001 for plasma treated with ONOO− in the absence of examined substances versus plasma treated with ONOO− in the presence of the extracts; # p < 0.05 for the control plasma vs. samples treated with ONOO− in the absence of examined substances; n = 6).