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Mutagenesis, Vol. 17, No. 2, 135-139, March 2002
© 2002 UK Environmental Mutagen Society/Oxford University Press

The frequency of dicentrics and acentrics and the incidence of rogue cells in radiation workers

Ruzica Rozgaj1,1, Vilena Kasuba1 and Diana Simic2

1 Mutagenesis Unit and 2 Biomathematics Unit, Institute for Medical Research and Occupational Health, Ksaverska c. 2, HR-10001 Zagreb, Croatia

Occupational exposure to ionizing radiation causes chromosomal damage. Some of the damaged cells show a large number of aberrations such as dicentrics, polycentrics, rings and numerous acentric fragments. This paper describes an analysis of the frequency of dicentric chromosomes and acentric fragments in 1260 subjects occupationally exposed to X-rays and 241 controls. Special attention was paid to the incidence of multi-aberrant cells. The 3 year cumulative dose was a significant predictor for all analyzed aberrations. The duration of exposure was a highly significant predictor of the frequency of rogue cells, but not of acentrics and dicentrics. Age and sex were not found to be significant predictors of the analyzed aberrations.

1 To whom correspondence should be addressed. Tel: +385 1 4673 188; Fax: +385 1 4673 303; Email: rrozgaj{at}imi.hr


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