NADPH oxidase is the primary source of superoxide induced by NMDA receptor activation.

Nature neuroscience

Brennan AM, Suh SW, Won SJ, Narasimhan P, Kauppinen TM, Lee H, Edling Y, Chan PH, Swanson RA. NADPH oxidase is the primary source of superoxide induced by NMDA receptor activation. Nat Neurosci. 2009 Jul; 12(7):857-63.

2009
http://profiles.ucsf.edu/profile/331976
19503084

Brennan AM, Suh SW, Won SJ, Narasimhan P, Kauppinen TM, Lee H, Edling Y, Chan PH, Swanson RA