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IGF-1 Information

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IGF-1, or Insulin-like Growth Factor 1, is a hormone that plays a crucial role in growth and development. It is primarily produced in the liver, but also in other tissues throughout the body, in response to the release of growth hormone (GH) from the pituitary gland.

IGF-1 works by binding to specific receptors on target cells, triggering a cascade of signaling pathways that promote cell growth, proliferation, and differentiation. It exerts its effects on various tissues, including bones, muscles, and organs, to stimulate growth and development.

In terms of growth, IGF-1 acts on the growth plates in long bones, promoting the lengthening and maturation of these bones during childhood and adolescence. It also enhances protein synthesis and inhibits protein breakdown, leading to increased muscle mass and strength.

IGF-1 also has metabolic effects. It promotes glucose uptake and utilization in cells, thereby lowering blood glucose levels. It also stimulates the breakdown of fats (lipolysis) and inhibits the breakdown of proteins (proteolysis), contributing to overall energy balance.

Furthermore, IGF-1 has been implicated in various physiological processes beyond growth, including tissue repair, immune function, and regulation of lifespan. It has also been associated with certain diseases, such as cancer, where abnormal IGF-1 signaling can contribute to uncontrolled cell growth.

Overall, IGF-1 plays a crucial role in growth, development, and metabolism, and its proper regulation is essential for maintaining optimal health.

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