Extrahepatic inflammation and metabolic disorders contribute to NAFLD development

Metabolic diseasesFactors or regulatorsHepatic inflammation and steatosisReferences
ObesityProduction of adipokines (e.g., increase of leptin levels and decrease of adiponectin levels)Induce hepatic inflammation[21]
Adipose tissue insulin resistanceIncrease hepatic TG accumulation[27]
Production of FFAsIncrease hepatic steatosis[28]
Insulin resistanceHigh levels of FPGIncrease liver DNL[33, 36]
Downregulation of CYP7B1 expressionIncrease hepatic cholesterol accumulation[34]
T2DMContinual hyperglycemiaCause hepatic liver accumulation[39, 41]
Insulin resistance
CKDHigh circulating levels of IL-6 and TNFR2Cause liver inflammation[47]
CVDIncreased levels of proinflammatory cytokines such as IL-1β and TNFCause liver inflammation[5355]
Dysregulation metabolism of lipids and lipoproteinsIncrease hepatic steatosis[58, 59]