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IGF-1 Blood Spot (Test Code 1412)

Collection Method

Blood Spot

Turn Around Time

7 Business Days

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Insulin-like growth factor 1 (IGF1) is a natural hormone the body produces it is an important protein determined by the IGF1 gene. It contains seventy amino acid polypeptides that are produced by the liver and endocrine hormone. IGF-1 also plays a role in cell repair to the muscles, brain and heart.

IGF-1 is stable in whole blood dried on filter paper and therefore can be conveniently and accurately measured in dried blood spots making this convenient and easy for you to collect your sample at home or in your physicians office.

IGF-1, also known as Somatomedin C, is a polypeptide hormone similar in structure to insulin and primarily produced in the liver. It is one of the main mediators of the actions of growth hormone in promoting muscular and skeletal growth. IGF-1 is itself a powerful anabolic hormone, and it also prevents premature cell death by inhibiting apoptosis. Because of its similarity to insulin, it also weakly activates the insulin receptor and therefore has insulin-like effects when present in large quantities.

Circulating IGF-1 is almost 100% bound to IGF binding proteins (IGFBP), the most abundant of these being IGFBP-3. These binding proteins stabilize IGF-1, prolonging its half-life in the bloodstream. Blood levels of IGF-1 are low in young children, peaking during the pubertal growth spurt and then declining steadily with age.

Test Method

Automated chemistry

Analytes

IgF-1

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