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.
an under active thyroid presents with a tsh ranging from 2miu l or more than that a tsh level count ranging between 0 5 and 3miu l confirms thyroid disorder the normal tsh range for newborns ranges from between 1 39 miu l the normal tsh levels for children ranges from between 0 7 6 4 miu lormal levels in children the range of normal tsh levels for full term newborns is higher as it can range from between 1 3 and 16 micro units per ml of blood the tsh range gradually reduces to 0 9 to 7 7 micro units per milliliter after 30 days