Bergmann glia expression of polyglutamine-expanded ataxin-7 produces neurodegeneration by impairing glutamate transport. - Custer SK; Garden GA; Gill N; Rueb U; Libby RT; Schultz C; Guyenet SJ; Deller T; Westrum LE; Sopher BL; La Spada AR (Nature neuroscience, 2006)