نتایج جستجو برای: radiation hormesis

تعداد نتایج: 238959  

Journal: :Toxicological sciences : an official journal of the Society of Toxicology 2000
G J Wang L Cai

Hormesis and a cytogenetic adaptive response induced by low-dose radiation (LDR) have been extensively documented. However, few studies have investigated the induction of an adaptive response by LDR for cell survival in vitro. In the present study, we investigated whether LDR could induce hormesis in hematopoietic cells and the adaptive response of these cells to subsequent high-dose radiation-...

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2009
KRISHAN KANT

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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Journal: :Dose-Response 2013

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Journal: :International Journal of Molecular Sciences 2020

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Journal: :Current Opinion in Toxicology 2022

The Earth was highly radioactive four billion years ago when life emerged. Even today, all humans are bombarded by 20,000 radiation strikes each second. Although high doses hazardous, organisms have evolved not only to tolerate lower-dose but also benefit it (hormesis). Hormesis is prevailing in species various respects. An example that hibakusha (Japanese A-bomb survivors) longer lifespans and...

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Journal: :Human & experimental toxicology 2010
Shu-Zheng Liu

This paper briefly reviewed recent reports on the epidemiological and experimental data on low dose radiation effects that support the concept of radiation hormesis. These reports point to the possibility of existence of a threshold dose in cancer induction by ionizing radiation and in some cases the occurrence of hormetic effects with stimulation of host defense mechanisms. The possibility of ...

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2016
Guozi Yang Dehai Yu Wei Li Yuguang Zhao Xue Wen Xinyue Liang Xiaoying Zhang Lei Zhou Jifan Hu Chao Niu Huimin Tian Fujun Han Xiao Chen Lihua Dong Lu Cai Jiuwei Cui

Low-dose radiation (LDR) induces hormesis and adaptive response in normal cells but not in cancer cells, suggesting its potential protection of normal tissue against damage induced by conventional radiotherapy. However, the underlying mechanisms are not well established. We addressed this in the present study by examining the role of the ataxia telangiectasia mutated (ATM) signaling pathway in ...

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Journal: :iranian journal of nuclear medicine 2003
ali shabestani monfared mehrangiz amiri john kameron

today, nuclear medicine has rapidly been developed so that in some cases, plays a unique role in diagnosis but unfortunalty in spite of diagnostic and therapeutic advantages, the term “nuclear” can induce worries in patients and society. in this article, base on new documents, we intend to show that this worries has no scientific basis. to produce a realistic view, regarding to radiation protec...

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Journal: :The British journal of radiology 2006
B F Wall G M Kendall A A Edwards S Bouffler C R Muirhead J R Meara

The magnitude of the risks from low doses of radiation is one of the central questions in radiological protection. It is particularly relevant when discussing the justification and optimization of diagnostic medical exposures. Medical X-rays can undoubtedly confer substantial benefits in the healthcare of patients, but not without exposing them to effective doses ranging from a few microsievert...

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Journal: :Japanese Journal of Health Physics 2008

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