ISSN: 1300-0292
İndekslendiği Dizinler: SCIENCE CITATION INDEX EXPANDED
CINAHL, Index Copernicus,
Chemical Abstracts (CA),
Excerpta Medica / EMBASE
Dil: Türkçe, İngilizce
İçerik: Orijinal Araştırma, Derleme, Editöre Mektup, Olgu Sunumu, Tıp Eğitimi, Tıbbi Kitap İncelemeleri
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Is Ionizing Radiation Beneficial For Human Health?: Review
Dr. Serpil ERDOĞANa
aNükleer Tıp AD, Adnan Menderes Üniversitesi Tıp Fakültesi, AYDIN
Although mutagenic effects of ionizing radiation have been recognized since 1920s, there are controversies over beneficial effects of ionizing radiation on human health. While many researchers propose that even the smallest doses of radiation causes cancer, others suggest evidences showing its beneficial effects. The LNT model anticipates that if high radiation dose increases cancer risk there is no secure or threshold radiation dose under which there is no cancer risk, namely every dose can create cancer risk and this risk increases proportional to the dose. According to the linear threshold theory, the effects of low-level ionizing radiation may be estimated by linear extrapolation of effects observed due to high radiation dose. Although there is no scientific basis for the LNT model, it constitutes legitimate arrangements particularly on radiation and manmade chemicals. Yet, recently, many scientific data suggest beneficial effects of low-level radiation. Radiation hormesis was defined as the physiological benefits obtained from radiation (generally in the range of 1-50 cGy of low-LET radiation). In addition to experimental and epidemiologic studies showing beneficial effects of radiation on growth and survival, some studies, in which the correlation between environmental radiation and cancer incidence was searched, demonstrated that, cancer incidence and cancer mortality rate were lower in areas with high-level background radiation than that of areas with low-level background radiation.Keywords: Radiation, Ionizing , Humans, healthTurkiye Klinikleri J Med Sci 2006, 26:555-558
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