17/03/2026
Effects of BCAAs and fatty acids on insulin signal transduction. Under normal circumstances, insulin can activate various molecules such as PI3K, Akt, and mTOR to affect the activation of IRS and regulate the transport and ectopic expression of GLUTs. Increased levels of BCAAs and fatty acids can interfere with normal insulin signaling through various mechanisms and ultimately lead to IR. In the figure, the dotted line indicates a multistep reaction, and the solid line indicates a one-step reaction.