1Research Programs Unit, Molecular Neurology, University of Helsinki, 00290 Helsinki, Finland
2Department of Pediatrics and Child Health, Kurume University School of Medicine, Fukuoka, Japan
3Department of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, 75007 Uppsala, Sweden
4Research Programs Unit, Translational Cancer Biology, University of Helsinki, 00290 Helsinki, Finland
5Metabolomics Unit, Institute for Molecular Medicine Finland, University of Helsinki, 00290 Helsinki, Finland
6Department of Neurology, Helsinki University Hospital, 00290 Helsinki, Finland
7Neuroscience Center, University of Helsinki, 00790 Helsinki, Finland