Muscle growth begins when hormones like insulin and IGF-1 are released into the bloodstream and bind to specific receptors on muscle cells. This process activates the PI3K/Akt signaling pathway, which is the first key step in muscle growth. When insulin or IGF-1 bind to their respective receptors, they activate the PI3K enzyme (phosphoinositide 3-kinase), which then triggers the activation of Akt (protein kinase B). Akt plays a pivotal role in regulating the cellular response to these growth sig

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细胞信号通路系列6一PI3K-Akt