TSPO and Alzheimer disease: TSPO‐dependent regulation of redox via NADPH oxidase has been linked to mitochondrial calcium homeostasis (Gatliff et al. 2017), while TSPO‐mediated mitochondrial cholesterol flux has long been thought to play a role in steroidogenesis, a function supported by recent genetic studies in microglia and AD models (Bader et al. 2019; Pradhan et al. 2023).