| 摘要 |
<p>A method and kit are provided for determining levels in a biological sample of free IGF-I, IGF-II, or GH ligand that is normally associated in the sample with a binding protein. This method involves contacting the body fluid with an immobilized unlabeled capture reagent and incubating at 4-10 DEG C for no greater than about 4 hours to bind the free ligand contained in the body fluid; separating the fluid from the immobilized capture reagent; and measuring the level of free ligand now bound to the capture reagent. This method is particularly useful to etermine levels of free IGF-I in serum or plasma. <IMAGE></p> |
