The receptors that bilirubin has been shown to activate at physiological bilirubin (10–25 μM) and pathological levels (>100 μM).
Abbreviations: Peroxisome proliferator-activated receptor alpha (PPARα), Mas-Related G-protein coupled receptor (MRGPR), aryl hydrocarbon receptor (AHR), constitutive androstane receptor (CAR), Peroxisome proliferator-activated receptor gamma (PPARγ) Asterisks: this is an indicator that studies were performed and validated in knockout animal models.