The process ofageing is to a large extent due to the damagingconsequence of free radical action (lipid peroxidation,DNA damage, protein oxidation) (Harman, 1956).Convincing evidence for the association ofoxidative/ nitrosative stress and acute and chronicdiseases lies on validated biomarkers of oxidativestress.
The radioactive iodine uptake test, or RAIU test, is a type of scan used in the diagnosis of thyroid problems, particularly hyperthyroidism.he normal uptake is between 15 and 25 percent, but this may be forced down if, in the meantime, the patient has eaten foods high in iodine, such as dairy products and seafood. Low uptake suggests thyroiditis, high uptake suggests Graves' disease, and unevenness in uptake suggests the presence of a nodule.
1 A radioactive iodine uptake test (RAIU) test measures thyroid function without imaging. 2  A whole-body thyroid scan, or metastatic survey, is used to evaluate patients with thyroid cancer. 3  The scan evaluates the spread of thyroid cancer to other parts of your body.he images and results of your thyroid scan will be evaluated by a physician who specializes in nuclear imaging. The results will be sent in a report to your doctor. In a normal thyroid scan, there are no abnormalities in the size, shape, and location of the thyroid gland.