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iodine-131

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iodine-131

n.
A radioisotope of iodine that emits beta and gamma rays, has a half-life of 8.05 days, and is used as a tracer in thyroid studies and as therapy in hyperthyroidism and thyroid cancer.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.
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References in periodicals archive
Sun's comments about the relationship between iodine-131 ([sup.131]I), hypothyroidism, and simple diffuse goiter suggest a misunderstanding of our study findings.
Atkins, "Side effects of "rational dose" iodine-131 therapy for metastatic well-differentiated thyroid carcinoma," Journal of Nuclear Medicine, vol.
The rate of decay of iodine-131 at time t is directly proportional to the quantity of iodine-131, I(u), present at time t: dI(t)/dt = -k x I(t), where k > 0.
From 1944 to 1957 a total of 724,779 curies of iodine-131 were released into the atmosphere.
The DNA in your thyroid cells is a major target of beta radiation from iodine-131. (16), (17) As it breaks and is repaired, abnormal DNA sequences can arise, producing mutations that lead to cancer.
"A person would have to drink some 96,000 litres of milk with We iodine-131 at the current levels to exceed the annual safe limit set to protect consumers."
Elevated levels of iodine-131, a radioactive substance that decays quickly, were another sign that radiation is leaking from the plant.
"Exposure to radionuclides, such as iodine-131 and cesium-137, increases the incidence of cancer.
The amount of iodine-131 found south of the plant does not pose an immediate threat to human health but was a "concern", said the Nuclear and Industrial Safety Agency.
The Atomic Energy Council stated that airborne radioactive iodine-131 was detected in both northern and southern parts of the island but it was well below the safe limit.
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