PPARGC1A and cerebral cavernous malformation: The ratio between total acetylated PGC‐1α in IB and total PGC‐1α in Input showed that the total acetylation level of PGC‐1α in the Lv5‐SIRT2‐HG+CCM group was significantly reduced compared with that in the HG+CCM group (Figure 6D).