AQP9 and metabolic dysfunction-associated steatotic liver disease: Tglycerol-3-phosphate derives from three metabolic sources: (1) glucose from glycolysis; (2) lipolysis-derived glycerol; and (3) glycerol uptake mediated by AQP9 (Rodríguez et al., 2011; Calamita et al., 2012), which expresses lower during NAFLD in patients and in murine models (Gena et al., 2013; Rodríguez et al., 2014).