Dysphagia is also an issue in Parkinson's disease (PD) caused by synucleinopathology in the glossopharyngeal nucleus (Braak et al., 2003; Cereda et al., 2014), starts initially in the dorsal motor nucleus of the vagus nerve (Braak et al., 2003) but it is UBB+1 negative. This evidence concerns the gene UBB and Parkinson disease.