Skip to main content
. Author manuscript; available in PMC: 2008 Nov 25.
Published in final edited form as: Neuroscience. 2008 Mar 26;153(4):963–974. doi: 10.1016/j.neuroscience.2008.03.042

Fig. 4.

Fig. 4

NO production as measured by DAF-2 DA fluorescence and nitrotyrosine expression in cortical neurons exposed to KCN for 3 days. Two times of LED treatment per day significantly decreased the DAF-2 DA intensity in KCN-exposed neurons, and even that of normal cultured neurons. A: Control; B: Control plus twice-a-day LED; C: KCN alone; D: KCN plus twice-a-day LED. E: Quantitative analyses of NO expression. F: Quantification of nitrotyrosine-immunoreactive neurons exposed to KCN and LED treated twice a day for 3 days. Two times of LED treatment significantly decreased the number of nitrotyrosine-positive cells as compared to KCN exposure alone. All *P values were compared to controls: **, P < 0.01, ***, P < 0.001. +++, P < 0.001 compared to KCN alone.