In genetic mouse models of ASD and Dravet syndrome, tau ablation prevents epilepsy and normalizes mTOR overactivation (Gheyara et al., 2014; Tai et al., 2020; Shao et al., 2022), suggesting that reducing tau may be beneficial in these diseases via PTEN disinhibition. The gene discussed is MTOR; the disease is encephalopathy, progressive, early-onset, with brain edema and/or leukoencephalopathy.