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. 2020 Sep 18;37:101731. doi: 10.1016/j.redox.2020.101731

Fig. 8.

Fig. 8

Effects of 1 mM tempol, mannitol, DMPO and trolox on 100 μM epigallocatechin gallate (EGCG) formation of polysulfides from 100 μM H2S when SSP4 was added shortly after (A) or 120 min after adding reactants (B). Only tempol affected polysulfide formation. Trolox was dissolved in DMSO and compared to DMSO supplemented EGCG + H2S. (C) Effects of superoxide dismutase (SOD) on 100 μM EGCG oxidation of 300 μm H2S. Both SOD concentrations inhibited polysulfide production. Mean + SE, n = 4 wells per treatment; error bars may be hidden by symbols; ***; p < 0.001 compared to EGCG + H2S.