- A MELAS-associated ND1 mutation causing leber hereditary optic neuropathy and spastic dystonia. Spruijt, L., Smeets, H.J., Hendrickx, A., Bettink-Remeijer, M.W., Maat-Kievit, A., Schoonderwoerd, K.C., Sluiter, W., de Coo, I.F., Hintzen, R.Q. Arch. Neurol. (2007)