- Increased Cu/Zn superoxide dismutase-like immunoreactivity in the swollen axons of rats intoxicated chronically with beta,beta'-iminodipropionitrile. Nishiyama, K., Kwak, S., Murayama, S., Watanabe, M., Goto, J., Asayama, K., Kanazawa, I. Neurosci. Lett. (1995)