Insulin-like growth factor I (IGF1)

The insulin-like growth factors, isolated from plasma, are structurally and functionally related to insulin but have a much higher growth-promoting action. May be a physiological regulator of [1-14C]-2-deoxy-D-glucose (2DG) transport and glycogen synthesis in osteoblasts.

Stimulates glucose transfer in bone-derived osteoblastic (PyMS) cells and is effective at much lower concentrations than insulin, not only seeing glycogen and DNA synthesis but also with regard to enhancing glucose uptake. May play a role in synapse maturation (PubMed:21076856, PubMed:24132240).