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Topic: Radiation hormesis

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	Hormesis Summary
		Hormesis is a dose-response phenomenon in which a low dose of a toxin has the opposite effect on a biological system than a high dose of the same toxin.
		Radiation hormesis is not generally accepted by The International Commission on Radiological Protection (ICRP), its U.S. counterpart, the National Council on Radiation Protection and Measurements (NCRP), the National Research Council Committees on the Biological Effects of Ionizing Radiation (the BEIR Committees), or the U.S. regulatory agencies.
		Hormesis was associated with the medical practice of homeopathy in its early years and was stigmatized as a result.
	www.bookrags.com /Hormesis (2776 words)

	An Introduction to Radiation Hormesis
		They published their findings regarding the new term "hormesis" in 1943 (Bruce M. Generally, hormesis is any stimulatory or beneficial effect, induced by low doses of an agent, that can not be predicted by the extrapolation of detrimental or lethal effects induced by high doses of the same agent.
		It is widely believed that radiation biology in the future will be focused on biomolecular and genetic implications, problems of damage and repair and connected problems such as radiation hormesis and radioadaptive response.
		It is concluded that according to new findings, the existence of radiation hormesis and adaptive response are not deniable and abandoning the LNT theory in low dose risk estimations will be a real nessecity in the near future.
	www.angelfire.com /mo/radioadaptive/inthorm.html (2662 words)

	Hormesis as a Biological Hypothesis
		This assessment of chemical hormesis has been restricted to those dose-response relationships most conforming to the ß-curve and would be affected by the magnitude of the low-dose stimulatory response, the number of doses establishing the reliability of the ß-curve, the presence of statistical analysis, and the reproducibility of the findings.
		Radiation hormesis was the subject of 104 of the 317 publications.
		The infrequent reports of hormesis are most likely attributable to a combination of factors, predominantly the issue of appropriate study design, along with the influence on safety evaluation, which emphasizes the upper end of the dose-response continuum (i.e., where higher concentrations establish toxic responses that can be used in chemical evaluation and risk assessment).
	www.ehponline.org /members/1998/Suppl-1/357-362calabrese/full.html (4003 words)

	BENEFICIAL RADIATION AND REGULATIONS
		Radiation carcinogenesis should no longer be perceived as a straightforward process started by a random hit by radiation to the DNA double strand in the cell.
		The adverse effects of ionizing radiation, such as mutation and malignant change, originate in the cell nucleus, where the DNA is their primary target.
		Conditions in which levels of ionizing radiation could be noxious do not normally occur in the biosphere, so humans required no radiation-sensing organ and none evolved, although all species have always been immersed in the sea of radiation ever since life began.
	www.tinyvital.com /Misc/NukeLinearDoseEffectRelationship.htm (5768 words)

	Radiation hormesis - Wikipedia, the free encyclopedia
		Radiation hormesis is the theory that ionizing radiation is benign at low levels of exposure, and that doses at the level of natural background radiation can be beneficial.
		This is in contrast to the linear no threshold model which posits that the negative health effects of ionizing radiation are proportional to the dose.
		It is therefore difficult to detect the 'signal' of decreased or increased morbidity and mortality due to low-level radiation exposure in the 'noise' of other effects.
	en.wikipedia.org /wiki/Radiation_hormesis (734 words)

	Radiation hormesis (John De Armond)
		The evidence of the beneficial effects of radiation, known as Radiation Hormesis, has become so strong that the Health-Physics society held its first Symposium on Radiation Hormesis and published the proceedings thereof.
		What radiation hormesis WILL have an effect on ultimately will be the regulatory process regarding radiation exposure to the public.
		Radiation hormesis will probably never be proven nor will there ever be a hard number that represents the ideal radiation exposure dose simply because control subjects (people exposed to zero radiation) do not exist.
	yarchive.net /nuke/radiation_hormesis.html (1432 words)

	Questions and Answers.
		In its interaction with matter, microwave energy may either be reflected, as in case of metals, it may be transmitted with little energy loss to the transmitting medium, as in the case of glass, or it may be absorbed by irradiated matter, and thus raise the temperature of the absorber.
		Radiation sickness is not generally well understood by the public, yet there term is commonly used, or I should say, mis-used in Hollywood films and the written media.
		This is what radiation sickness is. The some of the most sensitive cells in a human are the active cells in the lining of the intestine (called crypt cells), white blood cells, and the cells that make red and white blood cells.
	www.physics.isu.edu /radinf/qanda.htm (4047 words)

	The University of Michigan Health Physics Web Site: Radiation Related Frequently Asked Questions
		Radiation we are exposed to from our environment include Cosmic (high energy particles and EM from outside of our galaxy), Cosmic induced (C-14, Tritium made in the atmosphere by interactions with cosmic radiation), Solar (UV from the sun mostly, but in space can be particles), and terrestrial (Uranium, Thorium, Radon contained in the Earth itself).
		As the radiation enters the gas, it causes electrons to be formed which are collected and measured to determine the amount of initial radiation present.
		Radiation may also interact indirectly to cause damage, by interacting with chemicals in our bodies, such as water, and form very active chemicals like free radicals that may cause damage to the biologically significant molecules.
	www.umich.edu /~radinfo/introduction/qanda.htm (2644 words)

	Hormesis: Is some Radiation good for you?
		Biological effects of radiation are not well understood or easily predictable at low doses (at the diagnostic imaging or natural background levels), either from intermittent or chronic exposures.
		The "Hormesis" you are referring to is developing resistance to fungi and pathogens by exposure to a non-virile variety of a pathogen, which may convey immunity to the virile ones.
		Apparently, the radiation from living near a nuclear power plant is orders of magnitude smaller than the radiation one receives from flying in an airplane for 1000 km (due to increased cosmic radiation).
	www.physicsforums.com /showthread.php?threadid=148847 (3016 words)

	RADIATION HORMESIS , biopositive effect of radiations, Prof luckey, GIRI
		Hormesis was the word suggested by Southam and Erlich (1943) who determined the effective concentration of phenolic compounds in wood which protects trees from fungi decay.
		Chronic whole body exposure to ionizing radiation is pertinent to the welfare of all societies.
		Thus, radiation hormesis is comparable to those essential nutrients which are not present in adequate quantities in certain environments.
	www.giriweb.com /luckey.htm (2615 words)

	jousciexplorationltr
		Radiation hormesis researcher, Myron Pollycove, M.D. cites several examples, including reductions in lung cancer incidence with increasing radon exposure, and reductions in breast cancer rates in Canadian women exposed to low doses of radiation from lung fluoroscopy.
		Additionally, Pollycove concludes that a tenfold increase of annual background radiation stimulates overall biosystem activity by approximately 20%, producing a significant decrease in the metabolic rate of mutations and corresponding decreases of cancer mortality and mortality from all causes (Pollycove, 1998).
		It has been theorized that this decrease in external gamma counts is due to: 1) an enhanced absorption from the readily available gamma radiation in the environment; 2) changes to the rate of emissions from naturally-produced internal gamma radiation in the body; or, 3) a combination of both mechanisms.
	www.homestead.com /newvistas/jousciexplorationltr.html (1910 words)

	Chemical Hormesis - Access to Energy - Pro-Science, Pro-Technology, Pro-Freedom
		Cohen has shown that low-level radiation from radon actually decreases the death rate from lung cancer by a very significant amount.
		By ignoring the possibility of radiation hormesis and falsely demonizing Teller, he managed to obtain a Nobel Prize for Peace.
		By practicing chemical hormesis, however, (whether he recognized it or not) he increased his chances of living in good health for many years.
	www.accesstoenergy.com /view/ate/s41p900.htm (744 words)

	Is Radiation Good For You? - - science news articles online technology magazine articles Is Radiation Good For You? (Site not responding. Last check: 2007-10-13)
		Soon after the discovery of X rays in 1895, researchers began publishing reports of radiation hormesis, claiming, for example, that low doses stimulated plants.
		Hormesis has been a "marginalized hypothesis" for decades, he said, yet the data suggest that it's a fundamental, unifying aspect of biology.
		Hormesis might be a cruel joke—biology's equivalent of cold fusion—but he sees important differences.
	www.discover.com /issues/dec-02/features/featradiation (4144 words)

	The Hindu : Sci Tech : Is low-level radiation beneficial?
		Hormesis is defined as the stimulating effect of small doses of substances, which in larger doses are inhibitory.
		In particular radiation may be able to stimulate the repair of prior radiation damage, thus decreasing its consequences or may be able to improve immunological surveillance, thus strengthening the body's natural mechanisms."
		The Committee on the Biological Effects of Ionizing Radiation has stated that the assumption that any stimulatory hormetic effects from low doses of ionizing radiation will have a significant health benefit to humans that exceeds potential detrimental effects from radiation exposure is unwarranted at this time".
	www.hindu.com /seta/2005/09/29/stories/2005092900601600.htm (538 words)

	Rocks, Radiation Hormesis
		What the radiation is doing is slightly damaging the cells, not killing them like chemo, and allowing the cells to secrete a small amount of protein.
		What we are doing with this low dose radiation is not killing cells, but activating your own complex immune system to attack the abnormal cells.
		The problem with this "radiation hormesis therapy" is that if you could find a doctor here is the States that would give you this therapy, you would have to go in at least twice a week and get about 10 to 15 mRem and the cost would be tremendous.
	www.annieappleseedproject.org /roraho.html (917 words)

	Hormesis - Wikipedia, the free encyclopedia
		Hormesis is the term for generally-favorable biological responses to low exposures to toxins and other stressors.
		While proponents of hormesis argue that hanging to a hormesis model would likely change exposure standards for these toxins in air, water, food and soil, making the standards less strict, other scientists point out that low dose stimulation can have extremely adverse effects.
		Hormesis is a subset of the more general case of dose-response curves that are characterized mathematically as being non-monotonic.
	en.wikipedia.org /wiki/Hormesis (1131 words)

	Point/Counterpoint 6-17-96: Is The Linear, No-Threshold Theory of Radiation Obsolete?
		The linear, no-threshold theory of radiation was never more than a working hypothesis, originated in the 1950s as a prudent operational guideline.
		Recently, the BEIR 5 report-drawn up by a group of authorities in epidemiology, radiation, and cancer-concluded that there is a possibility that the risk at the level of 10 rad a year, which is twice the former guideline for workers, might be zero.
		Some studies can be interpreted to say that low levels of radiation are good for you, a concept known as hormesis.
	www.physweekly.com /archive/96/06_17_96/pc.html (589 words)

	Radiation Hormesis, or, Could All That Radiation Be Good for Us? -- Prekeges 31 (1): 11 -- Journal of Nuclear Medicine ...
		The basis for the new paradigm of radiation hormesis is the
		radiation hormesis is in the data on atomic bomb survivors.
		Proposition: radiation hormesis should be elevated to a position of scientific respectability.
	tech.snmjournals.org /cgi/content/full/31/1/11 (3971 words)

	FDA Proposes New X-Ray Regulations... Testimony by John Gofman and Egan O'Connor, 3/31/03
		Additionally, the Sutherland Study (Sutherland 2000, p.106; not mentioned by Cohen) yields evidence confirming that a single track of low-LET ionizing radiation is capable of causing clustered DNA damage and double-strand breaks.
		Therefore, it is conceivable (but we do not think it is the reality) that the x-ray-induced cancer and IHD revealed by the 1999 Gofman analysis results exclusively from accumulated x-ray doses each of which was higher than (say) 7.5 cGy per exposure.
		Radiation from Medical Procedures in the Pathogenesis of Cancer and Ischemic Heart Disease: Dose-Response Studies with Physicians per 100,000 Population.
	www.ratical.org /radiation/CNR/JWGtoFDA.html (3586 words)

	radiation_hormesis
		Our attempt was to quantify how much radiation it would take to give our patients cancer, or to project how many patients during our careers, we would actually give cancer to, as a side-effect of treating them.
		This LNT model comes from estimating the risks at lower doses of radiation, in the absence of data, by extrapolating in a linear fashion, from large doses of radiation from atomic bombs dropped on Japan in the 1940s (see Figure 1).
		Hormesis in humans exposed to low-level ionising radiation.
	www.idealspine.com /pages/ajcc_jan_06_radiation_hormesis.htm (902 words)

	Radiation Hormesis
		In surveying the literature, T. Luckey found that hormesis was common, particularly when the "dose" was of ionizing radiation.
		Background radiation, he said, was probably the cause of most mutations throughout evolution, and the human race had not done too bad.
		In August 1985, a Conference on Radiation Hormesis in Oakland, California, recognized the reversal in concepts of radiation effects.
	www.alamut.com /proj/98/nuclearGarden/bookTexts/Rad_hormesis.html (1442 words)

	Welcome to the Hotel Hormesis, by Steve Book
		This so-called 'radiation hormesis' is a real effect, a scientific fact.
		"This is not the unhealthful man-made, unnatural radiation.
		I also bought an old colour television set, the kind that used to leak a little radiation and the kind, according to the brochure, that the Hotel Hormesis proudly provides in each room.
	www.dcn.davis.ca.us /go/stebook/hormesis.html (610 words)

	Using Low-dose Radiation for Cancer Suppression and Vitalization (Site not responding. Last check: 2007-10-13)
		For example, we have many animal experiments with radiation hormesis: We apply a certain dose – for example 10 centigray, or 15 centigray.
		Ionizing radiation enters the cell and makes ions, electrons, and elevates the state of oxygen, and elevates the state of electron circulation around the atom.
		Question: There is now an international campaign to change the standards for radiation exposure away from their linear, no-threshold basis to standards that reflect the reality of hormesis effect.
	mitosyfraudes.8k.com /INGLES-2/Sadao.html (2450 words)

	Radiation Hormesis and the Radiological Imperative (Site not responding. Last check: 2007-10-13)
		The study suggests the radiation dose from a full-body scan can be almost as high as the dose received by some survivors of the 1945 atomic bombings of Hiroshima and Nagasaki.
		A study published in May by Yale University researchers found that radiologists and emergency room physicians were largely unaware of how much radiation the scans delivered, and now a study by Columbia University researchers highlights the risk of dying from radiation-induced cancer.
		A single full-body scan delivers a radiation dose nearly 100 times that of a screening mammogram and only slightly lower than the dose received by atomic bomb survivors a mile and a half from the burst sites.
	mitosyfraudes.8k.com /Polit/TWTW-SEP18-04.html (2855 words)

	Radiation, Science, and Health, Inc. - Low Dose Radiation, Hormesis, and Radiation Science Policy Fraud
		Hormesis data that are not applied by radiation protection interests.
		An accumulation of genetic damage to the DNA is how overexposure to sunlight can cause skin cancer and an overdose of radiation from X-rays can cause cancer in internal tissues like the thyroid gland.
		The evidence of large oxidative DNA damage and repair compared to radiation, and the role of failed or overwhelmed repair mechanisms as the cause of cancer, continues to dramatically accumulate, contradicting the biological basis for the 'linear model'.
	www.radscihealth.org /rsh/docs (509 words)

	Low dose radiation ,Hormesis and Radioadaptive response home page (Site not responding. Last check: 2007-10-13)
		I believe that now is the time for us to speak out, to make ourselves heard, to help people shed their real fears of imaginary dangers of radiation, and to make a realistic assessment of what radiation actually can and does do.
		General Information on Radiation Hormesis and Adaptive Response.
		Abstracts of Papers Concerning Radiation Hormesis and adaptive Response.
	www.angelfire.com /mo/radioadaptive (256 words)

	LOW RADIATION (Site not responding. Last check: 2007-10-13)
		ON THE EVIDENCE OF RADIATION HORMESIS IN HUMANS EXPOSED TO LOW-LEVEL IONISING RADIATION
		A NEW CLASSIFICATION FOR NATURAL RADIATION LEVELS, WITH REFERENCE TO RN IN AIR AND RA Seyed Mahmoud, R.
		HEREDITARY RADIATION EFFECTS IN OFFSPRING OF THE SECOND AND THIRD GENERATIONS AFTER IRRADIATION OF BOTH GRANDPARENTS: EXPERIMENTAL STUDIES.
	www.wonuc.org /conf_rad2.htm (1752 words)

	LRRI Radiation Resources
		This site provides credible resources related to characterizing human exposure to radiation and evaluating the possible consequences of such exposure.
		• Background Radiation May Be Protecting Us from Cancer and Other Diseases (seminar)
		• Medical and Therapeutic Radiation Hormesis: Preventing and Curing Cancer
	www.radiation-scott.org (371 words)

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