GLP1R and atherosclerosis: When examined across a range of atherosclerosis stages ([e.g diffuse intimal thickening, fatty infiltration, fatty streak, and pathological intimal thickening (PIT)], GLP-1R expression (Figure 1A-H), Supplementary material online, Figure S2-S4) appeared to be expressed predominantly in Type III lesions (PIT) which are known for the accumulation of intimal smooth cells with macrophage infiltration and lipid pool formation 16.