Our results showed that VEGFB gene suppression can reduce the level of AMPK phosphorylation through CaMKKβ, inhibit ACC/CPT1 pathway and affect fatty acid oxidation, meanwhile, it could promote the SREBP1/Scd1 pathway and lead to lipogenesis and accelerate the development of NAFLD. The gene discussed is CPT1A; the disease is metabolic dysfunction-associated steatotic liver disease.