|Document ID (ISN)||104563|
|ISSN - Serial title
||1219-1221 - Central European Journal of Occupational and Environmental Medicine
|Convention or series no.
||Zakeri F., Assaei R., Varzegar R.
||Chromosomal aberrations in workers occupationally exposed to chronic low-level ionizing radiation
||2003, Vol.9, No.1, p.33-38. 21 ref.
||To determine whether prolonged or repeated low-level exposure to ionizing radiation can induce chromosomal aberrations (CAs), a large-scale cytogenetic study of 450 radiation-exposed workers (industrial radiographers and personnel from nuclear research, medical X-ray diagnostic and nuclear medicine centres) was undertaken using the yield of CAs analysed in peripheral blood lymphocyte cultures. The results were compared with those of a control group consisting of healthy persons with no history of occupational exposure to radiation. The findings showed that the incidence of all types of CAs was significantly higher in all exposed groups than in the controls. The highest rate of aberrations was found among industrial radiographers and the lowest was obtained in the personnel of medical X-ray diagnostic centres. Although the mean frequency of CAs among male workers was slightly higher than among females, no obvious trend of increased aberrations as a function of either duration of employment or age was observed. The results suggest that education and retraining of staff concerning radiation safety guidelines and regulations and the use of up-to-date equipment are major considerations in reducing the workers' radiation exposure.
||ionizing radiation; chromosome changes; long-term exposure
||lymphocytes; Iran, Islamic Republic of; case-control study; x-rays; hospitals; blood cytology; nuclear power stations
||D - Periodical articles
|Country / State or Province||Iran, Islamic Republic of|
|Broad subject area(s)
||Antifertility and prenatal effects
Genetic factors in reaction to exposures