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. 2018 Sep 25;4:58. doi: 10.1038/s41421-018-0062-x

Fig. 8. Schematic of the mechanism of non-insulin determinant metabolic pathways.

Fig. 8

Excluding the stomach and duodenum by RYGB in rats largely reduces energy intake, which further decreases insulin production and inhibits the insulin signaling pathway in the liver, skeletal muscle and fat. Thus, insulin-independent metabolic pathways are triggered, including enhanced glycolysis, fatty acid oxidation and gluconeogenesis. Consequently, glucose homeostasis is initiated by non-insulin determinant metabolic pathways. IR insulin receptor