Fig. 5From: Protein cysteine S-nitrosylation provides reducing power by enhancing lactate dehydrogenase activity in Trichomonas vaginalis under iron deficiencyThe activity of TvLDH was upregulated by sodium nitrate, and the catalytic direction was preferentially toward lactate formation. a The activity of TvLDH of iron-deficient (ID) cells treated with sodium nitrate (25 mM) for 6 h was measured. The activity of TvLDH in the experimental cells relative to that in untreated control cells is shown. b Pyruvate level in ID cells was measured after sodium nitrate (25 mM) treatment for 6 h. The amount of pyruvate in nitrate-treated ID cells relative to that in untreated control cells is shown. c Lactate level in ID cells was measured after sodium nitrate (25 mM) treatment for 6 h. The amount of lactate in nitrate-treated ID cells relative to that in untreated control cells is shown. *** P < 0.001 compared with the untreated control group (0 mM)Back to article page