PNPLA3 and metabolic dysfunction-associated steatotic liver disease: Since (1) dietary retinyl esters are first delivered to—and hydrolyzed—in hepatocytes before they move as retinol to HSC to become esterified again, and since (2) PNPLA3 is expressed both in hepatocytes and HSC, it remains unclear which hepatic cell type retinyl esters accumulate in NAFLD and specifically in PNPLA3-I148M patients.