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. Author manuscript; available in PMC: 2013 Nov 15.
Published in final edited form as: Free Radic Biol Med. 2012 Aug 22;53(10):1968–1976. doi: 10.1016/j.freeradbiomed.2012.08.013

FIGURE 3.

FIGURE 3

(A) A log – log graph of half maximum constant (EC50) at different PAPA/NO concentrations. Average EC50 values (n = 3) are presented. The slope of 0.5 ± 0.2 is not statistically different from 0.5 (p = 0.946). The result suggests that EC50 is proportional to the square root of NO donor concentration and thus proportional to NO concentration. (B) A graph of EC50 vs. clamped NO values from NO electrode measurements in Fig 1B. The slope from a linear fit of the graph is 30.5 ± 5.2 μM GSH/μM.