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IGF1 is a polypeptide hormone about the same size as insulin, or 70 amino acids; It is a highly anabolic hormone released primarily in the liver (but also in peripheral tissues), with the stimulus of growth hormone (GH). It is responsible for much of the anabolic activity of GH, including nitrogen retention and protein synthesis, as well as increasing the number of muscle cells, and the growth of new muscle fibers. It can also induce skeletal muscle hypertrophy by activating the phosphatidylinositol. In fact, operates in several different tissues to enhance growth through several mechanisms. It is also important to note that GH and IGF -1 are connected, they produce a number of different effects. IGF -1 can be eventually used as a substitute for steroids GH in many cases. B as sufficient in muscle growth (anabolic) and has also been shown to be highly anti-catabolic agent also. As with all anabolic substances. |