title: Micronuclei frequencies in peripheral blood and buccal exfoliated cells of young smokers and non-smokers.
abstract: Cytogenetic biomarkers, such as micronuclei in peripheral blood or oral mucosa, are widely used for evaluation of exposure to genotoxins or carcinogens. Tobacco is one of the strongest carcinogens, responsible for development of different types of cancers. The aim of this study was to assess the genotoxicity of cigarette consumption in young smokers and to correlate results of cytogenetic analysis in peripheral blood lymphocytes and exfoliated buccal cells. The study was conducted on samples taken from 43 smokers and 44 non-smokers, young individuals from Bosnia and Herzegovina. Significantly higher frequency of micronuclei in peripheral blood lymphocytes was observed in smokers (p < 0.05). No significant correlations were found for age, duration and intensity of smoking, and frequency of micronuclei in lymphocytes. Significantly higher frequency of degenerated (apoptotic) buccal cells was also revealed in smokers (p < 0.05). The frequency of apoptotic cells in smokers was significantly influenced by the age of participants (F = 8.649; p < 0.01) and duration of smoking (F = 5.389; p < 0.05). Results of cytogenetic analysis conducted in peripheral blood and exfoliated buccal cells are in significant positive correlation, indicating complementarities of those analyses.
authors.affiliation: Institute for Genetic Engineering and Biotechnology, Sarajevo, Bosnia and Herzegovina.
authors.forename: Anja
authors.initials: A
authors.lastname: Haveric
authors.forename: Sanin
authors.initials: S
authors.lastname: Haveric
authors.forename: Slavka
authors.initials: S
authors.lastname: Ibrulj
mesh_terms: D000328:Adult; D002273:Carcinogens / Q000633:toxicity*; D002610:Cheek; D020732:Cytogenetic Analysis; D004781:Environmental Exposure / Q000032:analysis; D005260:Female; D006801:Humans; D007963:Leukocytes, Mononuclear / Q000187:drug effects; D008297:Male; D048629:Micronuclei, Chromosome-Defective; D015162:Micronucleus Tests; D009061:Mouth Mucosa / Q000187:drug effects* / Q000648:ultrastructure; D009153:Mutagens / Q000633:toxicity*; D012907:Smoking / Q000009:adverse effects*; D055815:Young Adult
chemical_list: D002273:Carcinogens; D009153:Mutagens