AGER and metabolic dysfunction-associated steatohepatitis: We confirmed RAGE expression on macrophages by co-IHC for RAGE and a macrophage marker (CD68) on formalin-fixed paraffin-embedded human liver biopsies from healthy controls and patients with NASH (Supplemental Figure 1; supplemental material available online with this article; https://doi.org/10.1172/jci.insight.169138DS1).