NUTM2B-AS1 and Leukoencephalopathy: Our previous study revealed NIID1 (showing leukoencephalopathy and neuropathy), OPML1 (showing both leukoencephalopathy and oculopharyngeal myopathy), and OPDM1 (showing oculopharyngeal myopathy) are caused by CGG or CCG repeat expansions [7].