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. 2003 Jul 2;139(5):989–997. doi: 10.1038/sj.bjp.0705323

Figure 4.

Figure 4

Effect of enzyme substrates on the release of NO2− (a) and NO (b) from GTN in rat liver homogenates. Experimental conditions for NO2− and NO detection were as indicated in Figure 3. The enzyme substrates were added at the following concentrations: 2.5 mM GSH, 0.5 mM NADPH, 0.5 mM NADH. *P<0.04; **P<0.0005.