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Neoplasma. 2003;50(5):380-2.

Effect of smoking and aging on micronucleus frequencies in human exfoliated buccal cells.

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Department of Experimental and Clinical Radiobiology; Institute of Oncology, 44-100 Gliwice, Poland.


In the present work the frequency of micronuclei (MN) in exfoliated buccal cells in 120 healthy individuals with relation to sex, age and smoking was investigated. Neither age nor sex showed any effect on the level of micronuclei. Smoking has shown a significant effect upon basal DNA damage. In the present study the calculated background frequency of micronuclei (per mille) in oral epithelial cells of 50 smokers and 70 non-smokers were 1.50 (+/-0.47) and 0.55 (+/-0.32), respectively.

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