Nonalcoholic fatty liver disease (NAFLD), which has recently undergone a change in its definition and acronym to “metabolic dysfunction associated fatty liver disease (MAFLD),” is clinically significant as an increasingly prevalent independent risk factor for cardiovascular diseases. Insulin resistance is considered to be a key mechanism in the development and progression of NAFLD/MAFLD, and fatty liver disease itself may exacerbate insulin resistance. In this review, we describe the mechanisms underlying the interaction between insulin resistance and fatty liver, and we summarize the therapeutic attempts based on those mechanisms.
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