IGF-1 plays a crucial role in muscle regeneration. IGF-1 stimulates both proliferation and differentiation of stem cells in an autocrine-paracrine manner, although it induces differentiation to a much greater degree. IGF-1, when injected locally, increases satellite cell activity, muscle DNA, muscle..
Erythropoietin is produced naturally in the body, mostly by the kidneys. It gives bone marrow the signal to produce red blood cells (RBCs), which carry oxygen in the blood. If the body does not produce enough erythropoietin, severe anemia (lack of oxygen reaching the different parts of the body) can..