JaLCDOI 10.18926/AMO/32120
フルテキストURL fulltext.pdf
著者 Lalic, Hrvoje| Volavsek, Crtomir| Radosevic-Stasic, Biserka|
抄録 <p>Cytogenetic analysis was performed in peripheral blood lymphocytes (PBL) of a woman with ductal breast carcinoma, who as a hospital employee was exposed professionally for 15 years to low doses of ionizing radiation. The most important finding after the chemotherapy in combination with radiotherapy was the presence of double minutes (DM) chromosomes, in combination with other chromosomal abnormalities (on 200 scored metaphases were found 2 chromatid breaks, 10 dicentrics, 11 acentric fragments, 2 gaps, and 3 double min chromosomes). In a repeated analysis (after 6 months), DM chromosomes were still present. To rule out the possibility that the patient was overexposed to ionizing radiation at work, her blood test was compared with a group of coworkers as well as with a group of professionally unexposed people. The data rejected this possibility, but the retroactive analysis showed that the patient even at the time of employment had a moderately increased number of chromosomal aberrations (3.5%) consisting of 3 isochromatids and 4 gaps, suggesting that her initial genomic instability enhanced the later development. The finding of a continuous presence of rare DM chromosomes in her PBL (4 and 10 months after radiochemotherapy) was considered as an indicator of additional risk, which might have some prognostic significance.</p>
キーワード breast carcinoma chromosomal instability double minutes ionizing radiation
Amo Type Article
発行日 2004-02
出版物タイトル Acta Medica Okayama
58巻
1号
出版者 Okayama University Medical School
開始ページ 51
終了ページ 58
ISSN 0386-300X
NCID AA00508441
資料タイプ 学術雑誌論文
言語 English
論文のバージョン publisher
査読 有り
PubMed ID 15157012
Web of Sience KeyUT 000189271100008