Oatp2b1 protein expression decreased to 48% of control in the WT-MCD group, to 42% of control in the Mrp2–/–-NASH group, and to 42% of control in the O–/–-NASH group (Fig. 5A and B, middle right panels). The gene discussed is SLCO2B1; the disease is metabolic dysfunction-associated steatohepatitis.