Sharif M et al. Serum hyaluronic acid level as a predictor of disease progression in osteoarthritis of the knee. Arthritis Rheum 38:760-767, 1995; Hochberg MC et al. Serum levels of insulin-like growth factor 1 in subjects with osteoarthritis of the knee. Arthritis Rheum 37:1177-1180, 1994
Radio-isotopes are a crucial component of the radiopharmaceuticals that are used. routinely in the clinics for the non-invasive diagnosis and treatment of various diseases. These radiopharmaceuticals are specific biological molecules tagged (or labelled) with. medical radioisotopes.
1 Radioactivity tracers are commonly used in the medical field and also in the study of plants and animals. 2  Radiation is used and produced in nuclear reactors, which controls fission reactions to produce energy and new substances from the fission products.  Radiation is also used to sterilize medical instruments and food.