The expression of the GABAB receptor subunit 2 was found to be significantly (p < 0.05) reduced in the MSA-P MSNs at day 70 ± 3 days, compared with the control MSNs, whereas the expression of the GABAB receptor subunit 1, as well as SUR1 and SUR2, did not differ between the groups (Figure 6B). This evidence concerns the gene ABCC8 and multiple system atrophy.