MOG and optic neuritis: Most recently, we could demonstrate high-titer MOG-IgG antibodies in pediatric patients with recurrent ON (Rostasy K, Mader S, Schanda K, Huppke P, Gärtner J, Kraus V, Karenfort M, Tibussek D, Blaschek A, Kornek B, Leitz S, Schimmel M, Di Pauli F, Berger T, Reindl M: Anti-MOG antibodies in children with optic neuritis, in press).