Abstract
Objective
Exposure to radioisotopes of metals and halogen elements occurring in medical practice may cause spontaneous abortions. The potential role of occupational exposure to X-rays and internal radioisotopes on pregnancy outcome in childbearing age women employed in hospital departments were analyzed in order to estimate miscarriage risk.
Methods
Over a period of 16 years, the occurrence of miscarriages in 61 women exposed to radioisotopes was compared to that reported in 170 X-ray exposed women. Chromosomal aberrations (CA) were measured in both radiation-exposed groups and in 53 non-exposed women.
Results
Women exposed to radioisotopes experienced at least a threefold higher rate of spontaneous abortions than those exposed to X-ray (OR = 3.68, 95% CI = 1.39–9.74, P < 0.01). Although X-ray and radioisotopes exposed women had significantly higher levels of chromosome type frequency (0.51 ± 0.82, and 0.63 ± 0.99, respectively) than referents (0.17 ± 0.34), there was no clear difference between radiation-exposed women.
Conclusions
For exposure levels within standard recommended guidelines, radioisotopes are far more likely to play a role in the occurrence of spontaneous abortions than X-rays. Such biological effect is not detectable by deviations in CA frequency.
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Acknowledgment
JNL work support by NIH grant # 1 R43 CA117161-01 and DOD, contract #DAMD17-02-C-0008. AF and DFM work supported by EC contract #FOOD-CT-2005-016320 (NewGeneris).
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Fucic, A., Merlo, D.F., Ceppi, M. et al. Spontaneous abortions in female populations occupationally exposed to ionizing radiation. Int Arch Occup Environ Health 81, 873–879 (2008). https://doi.org/10.1007/s00420-007-0281-1
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DOI: https://doi.org/10.1007/s00420-007-0281-1