Radiation Hormesis-Effect on Immune Function.
نویسندگان
چکیده
منابع مشابه
Radiation Hormesis
The word “hormesis” is derived from the Greek word “hormaein” meaning: “to excite,” which is the origin of the word “hormone.” In 1902, the English physiologist, E. Starling, discovered that an acid extract from the human duodenum contained a substance designated as secretin that, when discharged into the bloodstream, stimulated the pancreas to release its secretions when food has passed throug...
متن کاملRadiation Hormesis Overview*
Evidence of health benefits and longer average life-span following low-dose irradiation should replace fear, “all radiation is harmful,” and “the perception of harm” as the basis for action in the 21 century. Hormesis is the excitation, or stimulation, by small doses of any agent in any system. Large doses inhibit. “Low dose” is defined as any dose between ambient levels of radiation and the th...
متن کاملLook Different: Effect of Radiation Hormesis on the Survival Rate of Immunosuppressed Mice
Background: Hormesis is defined as the bio-positive response of something which is bio-negative in high doses. In the present study, the effect of radiation hormesis was evaluated on the survival rate of immunosuppressed BALB/c mice by Cyclosporine A.Materials and Methods: We used 75 consanguine, male, BALB/c mice in this experiment. The first group received Technetium-99m (3700Bq) and the seco...
متن کاملHormesis and radiation safety norms.
Today's radiation safety norms are based on the linear no-threshold theory (LNT): extrapolation of the dose-response relationships down to the minimal doses, where such relationships are unproven and can be inverse due to hormesis. The most promising way to obtaining reliable data on the dose-effect relationships for low radiation doses would be large-scale animal experiments. Outstanding publi...
متن کاملRadiation Hormesis in Humans Exposed to Low Level Ionizing Radiation
Through various researches and investigations it has been established that high doses of ionizing radiation are harmful to health. There is substantial controversy regarding the effects of low doses of ionizing radiation despite the large amount of work carried out (both laboratory and epidemiological). According to the linear no-threshold (LNT) hypothesis, any amount, however small, of radiati...
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ژورنال
عنوان ژورنال: RADIOISOTOPES
سال: 1996
ISSN: 1884-4111,0033-8303
DOI: 10.3769/radioisotopes.45.481