Nitration of manganese superoxide dismutase in cerebrospinal fluids is a marker for peroxynitrite-mediated oxidative stress in neurodegenerative diseases. - Aoyama,K.; Matsubara,K.; Fujikawa,Y.; Nagahiro,Y.; Shimizu,K.; Umegae,N.; Hayase,N.; Shiono,H.; Kobayashi,S. (Ann Neurol, 2000)