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The role of insulin-like growth factor-1 in bone remodeling: A review

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ELSEVIER
DOI: 10.1016/j.ijbiomac.2023.124125

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IGF-1; Bone resorption; Bone formation

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Insulin-like growth factor (IGF)-1 is a polypeptide hormone that plays a vital role in bone cells. Abnormal expression of IGF-1 affects bone growth and remodeling, leading to significant changes in bone mass and development. This review highlights the functions and mechanisms of IGFs in bone and emphasizes the critical role of IGF-1 in bone remodeling through both bone resorption and bone formation. It provides a theoretical basis for further research on the maintenance of bone mass and homeostasis.
Insulin-like growth factor (IGF)-1 is a polypeptide hormone with vital biological functions in bone cells. The abnormal expression of IGF-1 has a serious effect on bone growth, particularly bone remodeling. Evidence from animal models and human disease suggested that both IGF-1 deficiency and excess cause changes in bone remodeling equilibrium, resulting in profound alterations in bone mass and development. Here, we first intro-duced the functions and mechanisms of the members of IGFs in bone. Subsequently, the critical role of IGF-1 in the process of bone remodeling were emphasized from the aspects of bone resorption and bone formation respectively. This review explains the mechanism of IGF-1 in maintaining bone mass and bone homeostasis to a certain extent and provides a theoretical basis for further research.

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