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Journal of Environmental Pathology, Toxicology and Oncology

Erscheint 4 Ausgaben pro Jahr

ISSN Druckformat: 0731-8898

ISSN Online: 2162-6537

The Impact Factor measures the average number of citations received in a particular year by papers published in the journal during the two preceding years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) IF: 2.4 To calculate the five year Impact Factor, citations are counted in 2017 to the previous five years and divided by the source items published in the previous five years. 2017 Journal Citation Reports (Clarivate Analytics, 2018) 5-Year IF: 2.8 The Immediacy Index is the average number of times an article is cited in the year it is published. The journal Immediacy Index indicates how quickly articles in a journal are cited. Immediacy Index: 0.5 The Eigenfactor score, developed by Jevin West and Carl Bergstrom at the University of Washington, is a rating of the total importance of a scientific journal. Journals are rated according to the number of incoming citations, with citations from highly ranked journals weighted to make a larger contribution to the eigenfactor than those from poorly ranked journals. Eigenfactor: 0.00049 The Journal Citation Indicator (JCI) is a single measurement of the field-normalized citation impact of journals in the Web of Science Core Collection across disciplines. The key words here are that the metric is normalized and cross-disciplinary. JCI: 0.59 SJR: 0.429 SNIP: 0.507 CiteScore™:: 3.9 H-Index: 49

Indexed in

Chromosomal Aberrations in Subjects Exposed to Ionizing Radiation

Volumen 28, Ausgabe 1, 2009, pp. 75-82
DOI: 10.1615/JEnvironPatholToxicolOncol.v28.i1.80
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ABSTRAKT

Occupational exposure to low doses of ionizing radiation is a particularly delicate subject for investigation, due to the cumulative effects of chronic exposure. It is extremely important to consider and to measure the biological response to given conditions of exposure. The aim of this study was to establish possible recovery from DNA damage in subjects professionally exposed to radiation in their working area by examinations for chromosomal aberrations (CA) at two different times. The first group (I) was composed of 30 professionally exposed subjects in whom unstable CA (dicentrics, ring, acentric fragments, chromatid, chromosomal breaks, and chromatid interchanges) were identified at time zero. After removal from the radiation area, they were re-examined 9 months later. The second group (II) contained 64 healthy individuals, not professionally exposed to ionizing radiation or other known mutagenic agents. In the group of exposed individuals, five (16.67%) subjects exhibited permanent unstable CAs, even after 9 months absence from the radiation. When the nonexposed and exposed groups were compared, an increase of unstable aberrations (p < 0.05) was observed in the exposed group. Nevertheless, a statistically significant decrease of dicentrics, acentric fragments, and ring frequencies was observed in exposed individuals after 9 months away from the radiation area. However, chromatid and isochromatid break frequencies increased slightly but not significantly after 9 months. The detected CAs corresponded to the total effective doses of radiation measured in our subjects. The existence of CAs in some individuals even after absence from the radiation area suggests that the time necessary for the damaged DNA to recover is extremely variable and indicates interindividual differences in radiosensitivity as well as differences in the cellular-reparation response.

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