Insulin Like Growth Factor Binding Protein (IGFBP-3)
Insulin-like growth factor binding protein 3 (IGFBP-3) functions as a binding protein for IGF-1. IGF-1, also called somatomedin C, is primarily produced by the liver as an endocrine hormone and plays an influential role in virtually every system from muscle, bone, and connective tissue growth and repair, to the selective regulation of various aspects of metablism, as well as helping maintain normal brain function and cardiac health.
IGFBP-3 is related to the production and secretion of growth hormone (GH). GH has a very short half-life which makes it unreliable to test in order to get an accurate representation of its own, actual level. However, IGFBP-3 appears constant over a 24-hour period, making it a useful bio-marker to help assess blood levels of GH.
Fasting is not required for this test. Take all medications as prescribed.
The laboratory services are for informational purposes only. It is not the intention of National Diagnostics, Inc and Life Extension to provide specific medical advice but rather to provide users with information to better understand their health. Specific medical advice including diagnosis and treatment will not be provided. Always seek the advice of a trained health professional for medical advice, diagnosis or treatment.
Both the physician and the testing laboratory are independent contractors with whom National Diagnostics, Inc makes arrangements for your blood tests. Neither National Diagnostics, Inc or Life Extension will be liable for any acts or omissions of the physician, the testing laboratory, or their agents or employees.
Product reviews are provided for informational purposes only and reflect solely the views and opinions expressed by the contributors and not those of Life Extension. We do not verify or endorse any claims made in these reviews. Please read the full product reviews disclaimer.