a, Quantitation of lesion scores from cerebellar sections of NHPs injected with the indicated AAVs (Empty, miSCA7, Stuffer, IntmiS1). Each dot represents a single animal. b, Human ATXN1L levels normalized to endogenous GAPDH as assessed by RT-qPCR. c, Total read counts of human ATXN1L by RNA-seq. d, miS1 levels in AAV.IntmiS1 treated animals, normalized to endogenous U6 RNA and relative to empty capsid treated animals. e, Ionized calcium binding adapter molecule 1 (IBA1) mRNA levels. f, Glial fibrillary acidic protein (GFAP) mRNA levels. Data are represented as mean ± SEM (N = 3 animals per group). There was no significant difference as measured by two-way ANOVA followed by a Dunnett’s multiple comparisons post hoc.