Clinical Relevance of Systemic and Local IGF-I
摘要:
The insulin-like growth factor family of ligands, receptors and binding proteins are critical for many normal physiological functions. These include normal development during fetal and post-natal development and maintenance of organ function in adult life. Circulating IGF-I is produced primarily by the liver under GH control, whereas the production of tissue IGF-I has other controls. Recent studies have demonstrated that both circulating and tissue IGF-I are important for maintaining the normal structure-function of complex organs such as bone. Circulating IGF-I is important for maintaining ambient GH levels; in its absence GH elevation is seen leading to insulin resistance. In addition, low levels of circulating IGF-I retard the progression and metastatic potential of a number of cancers.
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DOI:
10.1159/000085718
被引量:
年份:
2005
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