GJB1 and multiple system atrophy: Double immunofluorescence detection of p‐αSyn and oligodendrocytic Cx32 in demyelinating lesions revealed that Cx32 was highly co‐localized with p‐αSyn‐positive GCIs in all stages (Figure 2M–P,Q–T,X), whereas Cx47 was not co‐localized with p‐αSyn‐positive GCIs (data not shown), suggesting that Cx32 coaggregates with p‐αSyn in the oligodendrocytic cytoplasm beginning in the early stage of MSA.