Imidazolium crosslinks derived from reaction of lysine with glyoxal and methylglyoxal are increased in serum proteins of uremic patients: evidence for increased oxidative stress in uremia - Odani, H; Shinzato, T; Usami, J; Matsumoto, Y; Frye, E; Baynes, J; Maeda, K (FEBS Lett, 1998)