HAT1 and Parkinson disease: A transcriptome study on post mortem SN tissue from eight late-stage PD (Braak stage 5/6) patients (78.5 ± 1.9 years), compared with eight age-matched, non-demented controls (75.5 ± 7.6 years) reported a 1.6-fold higher level of HDAC6 expression, and a 1.65-fold higher level of HAT1 expression in the PD samples [31].