SLC1A2 and motor neuron disorder: Although few studies have focused on Cxs in motor neuron disease, Díaz-Amarilla et al.[11] described how astrocytes with an aberrant phenotype isolated from symptomatic rats carrying a SOD1 gene mutation showed augmented Cx43 immunoreactivity but lacked glutamate transporter 1 (GLT-1), also known as excitatory amino acid transporter-2 (EAAT2).