SOD3 and Alzheimer disease: Extracellular superoxide dismutase 3 (SOD3) is another antioxidant enzyme (Wang et al., 2018) that ameliorates the oxidative damage exerted by Aβ25‐35 in SH‐SY5Y (Yang, Wei, et al., 2017), and its levels in CSF are frequently changed in AD (Bader et al., 2020; Perrin et al., 2011; Ringman et al., 2012; Visser et al., 2022).