GRIN2D and Parkinson disease: This is further evidence that GluN2D might be a good target for inhibition in neurodegenerative illnesses (such as PD) which may include glutamate transporter dysfunction as part of their pathophysiology (Lipton, 2004; Kotermanski and Johnson, 2009; Emre et al., 2010; Wild et al., 2013, 2015; Assous et al., 2014; Jensen et al., 2015).