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We investigated the impact of radiation exposure on the prognosis of MDS in Nagasaki atomic bomb survivors using the International Prognostic Scoring System (IPSS) and the revised version (IPSS-R). However, little is known about whether radiation exposure is also a prognostic factor of MDS. There is evidence that radiation exposure is a causative factor of myelodysplastic syndromes (MDS). Matsuo, Masatoshi Iwanaga, Masako Kondo, Hisayoshi Soda, Midori Jo, Tatsuro Horio, Kensuke Takasaki, Yumi Kawaguchi, Yasuhisa Tsushima, Hideki Imaizumi, Yoshitaka Imanishi, Daisuke Taguchi, Jun Sawayama, Yasushi Hata, Tomoko Miyazaki, Yasushi
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The increase in the expected mortality number in the next 10 y would allow the analyses of further details of the observed effects related to atomic bomb exposures.Ĭlinical features and prognosis of patients with myelodysplastic syndromes who were exposed to atomic bomb radiation in Nagasaki. There has been no evidence of genetic effects in the survivors' children, including cancer and other multi-factorial diseases. Increases of other mortality causes were also observed, including heart and respiratory diseases. As results of these studies, increases of cancers in relation to dose were clearly shown. An extensive individual dose estimation was conducted and the system was published as the Dosimetry System established in 2002 (DS02). the Adult Health Study and the F(1) Clinical Study, respectively. The LSS and F(1) studies include a periodic health examination for each sub-cohort, i.e. the Life Span Study (LSS) of 120,000 people, the In Utero Cohort of 3600 and the Second Generation Study (F(1)) of 77,000. It has three major cohorts of atomic bomb survivors, i.e. The Radiation Effects Research Foundation succeeded 28 years' worth of activities of the Atomic Bomb Casualty Commission on long-term epidemiological studies in Hiroshima and Nagasaki. Long-term epidemiological studies of atomic bomb survivors in Hiroshima and Nagasaki: study populations, dosimetry and summary of health effects. Stroke and heart disease together account for about one third as many radiation associated excess deaths as do cancers among atomic bomb survivors. Doses above 0.5 Gy are associated with an elevated risk of both stroke and heart disease, but the degree of risk at lower doses is unclear. Prospective data on smoking, alcohol intake, education, occupation, obesity, and diabetes had almost no impact on the radiation risk estimates for either stroke or heart disease, and misdiagnosis of cancers as circulatory diseases could not account for the associations seen. However, the dose-response effect over the restricted dose range of 0 to 0.5 Gy was not significant. For heart disease, the estimated excess relative risk per gray was 14% (6% to 23%, P<0.001) a linear model provided the best fit, suggesting excess risk even at lower doses. For stroke, the estimated excess relative risk per gray was 9% (95% confidence interval 1% to 17%, P=0.02) on the basis of a linear dose-response model, but an indication of possible upward curvature suggested relatively little risk at low doses. About 9600 participants died of stroke and 8400 died of heart disease between 19. Mortality from stroke or heart disease as the underlying cause of death and dose-response relations with atomic bomb radiation. The subjects were classified by distance from the hypocenter into a proximal group (3 Gy (86% received <0.2 Gy). This study examined the association between atomic bomb radiation and the incidence of prostate cancer among male Nagasaki atomic bomb survivors. However, the risk of prostate cancer in atomic bomb survivors is not known to have been examined previously. Kondo, Hisayoshi Soda, Midori Mine, Mariko Yokota, KenichiĪtomic bomb survivors have been reported to have an increased risk of some cancers, especially leukemia.
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In addition, we evaluated our estimated population comparing with the actual number from 2008 to 2011.Įffects of radiation on the incidence of prostate cancer among Nagasaki atomic bomb survivors. Since the number of atomic bomb survivors has steadily been decreasing, prediction of future population is important for planning future epidemiologic studies, and we tried to predict the population of atomic bomb survivors in Nagasaki city from 2008 to 2030. The Nagasaki University Atomic Bomb Survivor Database, which was established in 1978 for elucidating the long-term health effects of the atomic bombing, has registered since 1970 about 120,000 atomic bomb survivors with a history of residence in Nagasaki city. Yokota, Kenichi Mine, Mariko Shibata, Yoshisada Future population of atomic bomb survivors in Nagasaki.