From: Peroxynitrite-mediated inactivation of heme oxygenases
 | Heme oxygenase activity (pmoles CO/min/mg protein) | |
---|---|---|
Experimental conditions | HO-1 (Spleen microsomes) | HO-2 (Brain microsomes) |
Control | 11.9 ± 0.6 | 3.1 ± 0.5 |
ONOO- | Â | Â |
0.2 mM | 5.4 ± 0.9* | 2.7 ± 0.6 |
2 mM | 3.8 ± 0.9* | 1.4 ± 0.3* |
GSNO | Â | Â |
0.2 mM | 6.5 ± 0.3* | 2.9 ± 0.5 |
2 mM | 4.2 ± 0.2* | 1.4 ± 0.1* |
DEA-NONOate | Â | Â |
0.2 mM | 4.7 ± 0.4* | 2.9 ± 0.7 |
2 mM | 3.6 ± 0.4* | 2.4 ± 0.5 |
NEM | Â | Â |
0.2 mM | 8.7 ± 0.8 | 2.9 ± 0.3 |
2 mM | 3.4 ± 0.5* | 2.6 ± 0.4 |
H2O2 | Â | Â |
0.2 mM | 11.3 ± 0.2 | 3.0 ± 0.4 |
2 mM | 11.8 ± 1.5 | 3.2 ± 0.6 |
ONOO- and GSNO | Â | Â |
0.2 mM | 4.3 ± 0.6* | 2.8 ± 0.4 |
2 mM | 4.0 ± 0.2* | 1.3 ± 0.2* |
(ONOO- and DEA-NONOate) | Â | Â |
0.2 mM | 4.7 ± 0.1* | 2.6 ± 0.2 |
2 mM | 3.9 ± 0.6* | 1.4 ± 0.3* |