タグ「Norway」
Title: Chromosome analysis of peripheral lymphocytes from persons exposed to radioactive fallout in Norway from the Chernobyl accident
Author: A. Brøgger, J.B. Reitan, P. Strand, I. Amundsen
Reference: Mutation Research 361 (1996) 73-79
DOI: http://dx.doi.org/10.1016/S0165-1161(96)90241-1
Keywords: Chromosome aberration; Chernobyl fallout; Radiation burden; Norwegian population
Abstract: Chromosome analysis of peripheral lymphocytes from two Norwegian populations (44 reindeer herding South samis from Røros and Snåsa, 12 sheep farmers from Valdres) exposed to fallout from the Chernobyl accident were made. The doses from caesium through the years 1987–1991 were calculated based on whole-body measurement of 134Cs and 137Cs giving a total cumulative mean internal dose of 5.54 mSv for the total group of 56 persons. Chromosome aberrations were within the normal range when compared with historical controls with the exception of dicentrics (0.3% per cell, which is a 10-fold increase) and rings (0.07% per cell). A dose-dependent increase in dicentrics and rings based on caesium exposure was not observed.
ＵＲＬ： http://www.sciencedirect.com/science/article/pii/S0165116196902411
Author: K.S. Heiervang, S. Mednick, K. Sundet, B.R. Rund
Reference: Scand. J. Psychol. — 2010. — Vol. 51, № 3. — 210–215.
Keywords: Norway, IQ, prenatal exposure
Abstract: Radiation from the Chernobyl nuclear power plant meltdown greatly affected several Norwegian counties. The cognitive consequences of in utero exposure to radiation from the Chernobyl accident have been intensely debated. This study examines the cognitive outcomes for those Norwegians who were exposed as fetuses to the fallout from Chernobyl. The participants, 84 adolescents who were exposed in utero to radiation from the most contaminated areas in Norway and 94 adolescents from areas not contaminated by the radiation, were tested on verbal and nonverbal IQ. Two data analyses were conducted. First, using a control-group design, the IQ scores of exposed and unexposed adolescents were compared. Second, in a timing-of-exposure design, those exposed during the most sensitive period were contrasted with those exposed later in gestation. Adolescents exposed to low-dose ionizing radiation in utero scored significantly lower in full-scale IQ than unexposed adolescents. The difference was restricted to verbal IQ and was not evident for nonverbal IQ. The effect was not observed in exposed adolescents who had passed the most sensitive gestational period prior to the accident and thus were exposed to the radiation from Chernobyl exclusively after gestational week 16. These participants performed as well as the controls. Although the results should be interpreted cautiously due to the study’s nonrandomized design, the data add new and important support to the hypothesis that the Chernobyl accident may have had a subtle effect on the cognitive functioning of those exposed to low-dose ionizing radiation in utero during the most sensitive gestational period.
URL: http://www.ncbi.nlm.nih.gov/pubmed/20338021
Title: Outcome of Pregnancy in one Norwegian County 3 Years Prior to and 3 Years Subsequent to the Chernobyl Accident
Author: Magnar Ulstein, Tone Skeie Jensen, Lorentz M. Irgens, Rolv Terje Lie, Erling Sivertsen
Reference: Acta Obstetricia et Gynecologica Scandinavica, Volume 69, Issue 4, pages 277–280, January 1990
DOI: 10.3109/00016349009036146
Keywords:pregnancy, Norway
Abstract: Pregnancy outcome was studied in a county in Norway 3 years prior to and 3 years subsequent to the Chernobyl nuclear plant accident on 26th April 1986. More detailed analyses have been performed for the 12 months prior to and subsequent to the accident. A significant increase in the spontaneous abortion rate the first year after the accident was followed by a slight decrease during the second and third years, but figures were still higher than the period prior to the accident. the rate of legal abortions was unchanged. During the entire observation period the number of births increased continuously, with the exception of a decrease in the last 2 months of 1986 and the first month of 1987. A higher incidence of spontaneous abortions was found for pregnancies conceived during the first 3 months after the accident. This increase in the spontaneous abortion rate is noteworthy, and more especially its long-term persistence, which cannot be the result of external radiation. the internal radiation from food polluted by radioactive fallout is a possible explanation. Changes in nutrition in order to avoid polluted food may also be of importance.
URL: http://onlinelibrary.wiley.com/doi/10.3109/00016349009036146/abstract
Title: Pregnancy outcome in Norway after Chernobyl
Author: LM Irgens, RT Lie, M Ulstein, T Skeie Jensen, R Skjærven, F Sivertsen, JB Reitan, F Strand, T Strand, F Egil Skjeldestad
Reference: Biomedicine & Pharmacotherapy, Volume 45, Issue 6, 1991, Pages 233-241
DOI: http://dx.doi.org/10.1016/0753-3322(91)90023-M
Keywords: Pregnancy outcome, Chernobyl, Norway
Abstract: Pregnancy outcome has been studied in terms of legal abortions, early spontaneous abortions and total number of pregnancies (in an ad hoc study covering 6 counties) as well as various perinatal health problems (on the basis of routinely recorded data for epidemiological surveillance from the Medical Birth Registry of Norway). Apparently, no effects were observed in terms of an increased occurrence of legal abortions, while spontaneous abortions increased from 2.4% of all pregnancies during the last 12 months before the accident to 3% after the accident. At the same time, the total number of pregnancies somewhat decreased. Based on monthly measurements in each municipality of external and internal (food-based) doses, dose-response associations were assessed for a number of perinatal health problems. No associations were observed.
URL: http://www.sciencedirect.com/science/article/pii/075333229190023M
Title: The psychological well-being of Norwegian adolescents exposed in utero to radiation from the Chernobyl accident
Author: Kristin S Heiervang, Sarnoff Mednick, Kjetil Sundet and Bjørn R Rund
Reference: Child and Adolescent Psychiatry and Mental Health 2011, 5:12
doi:10.1186/1753-2000-5-12
Keywords: Psychiatry, Mental Health, adolescents, Norway
Abstract: On 26 April 1986, the Chernobyl nuclear power plant suffered an accident. Several areas of central Norway were heavily affected by far field radioactive fallout. The present study focuses on the psychological well-being of adolescents who were exposed to this radiation as fetuses.
URL:http://www.capmh.com/content/5/1/12
