2012
DOI: 10.4103/0973-029x.102480
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Sister chromatid exchanges in smokers and smokers with alcohol habit

Abstract: Aim:Sister chromatid exchange (SCE) test is a sensitive, biomarker of genotoxic substances. The present study was conducted to observe the frequency of SCEs in peripheral blood lymphocytes of 30 males with and without the habit of cigarette smoking and alcohol consumption.Materials and Methods:Subjects for this study were males aged between 25-50 years and were selected from the students, employees and the patients attending the outpatient department of Ragas dental college and Hospital, Chennai.Results:Contro… Show more

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Cited by 8 publications
(5 citation statements)
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“…Secondly, there were studies showing higher frequency of SCE among smokers, as compared to non-smokers [ 49 , 50 ], some with [ 50 ] and some without [ 49 ] correlation with a number of cigarettes smoked daily. In our study, smokers have a slightly higher SCE frequency as compared to non-smokers (means 5.7 vs. 5.5; medians: 5.2 vs. 5.1, p = 0.698), but this difference was not significant.…”
Section: Discussionmentioning
confidence: 99%
“…Secondly, there were studies showing higher frequency of SCE among smokers, as compared to non-smokers [ 49 , 50 ], some with [ 50 ] and some without [ 49 ] correlation with a number of cigarettes smoked daily. In our study, smokers have a slightly higher SCE frequency as compared to non-smokers (means 5.7 vs. 5.5; medians: 5.2 vs. 5.1, p = 0.698), but this difference was not significant.…”
Section: Discussionmentioning
confidence: 99%
“…Sister chromatid exchange, is a popular method in genetic toxicology and human population cytogenetic monitoring (25) SCE was first demonstrated in 1957 by Taylor et al (26) SCE phenomenon is widely used as a reliable and sensitive indicator of chromosome ( DNA ) instability ( 27 ) . Since SCEs are consider to be sensitive indicators of genetic effects after exposure to mutagenic and carcinogenic agents (28)(29) , the SCE patterns can reveal a general genome instability , variation in( DNA) repair mechanisms or detoxifying enzymes have been implicated as causing genetic susceptibility associated with cancer .SCE in peripheral lymphocyte , has been widely used assess exposure to mutagens and carcinogens (31)(32).…”
Section: Introductionmentioning
confidence: 99%
“…Για παράδειγμα, οι Taner et al (2013) (Khabour et al 2011, Kumar et al 2012, Karaoguz et al 2005, Rowland et al 1999, Kao-Shan e al. 1987 (Brehmer et al 2020, Velali et al 2016b, Saffari et al 2014, Gali et al 2017, Verma et al 2012, Fang et al 2015a (Gutierrez-Castillo et al 2006, Valavanidis et al 2008, Knaapen et al 2002, de Kok et al 2006, Tong et al 2002…”
Section: εκτίμηση κινδύνου για την υγεία και βιβλιογραφικά δεδομέναmentioning
confidence: 99%
“…Με τον τρόπο αυτό, το κύτταρο προσπαθεί να αντιμετωπίσει τις βλάβες που έχουν προκληθεί στο DNA. Συνεπώς, μεγάλος αριθµός χρωματιδιακών ανταλλαγών υποδηλώνει μεγάλο αριθµό βλαβών στο μόριο του DNA, οι οποίες µπορεί να προκλήθηκαν από διάφορους παράγοντες και δεν έχουν επιδιορθωθεί από τους αντίστοιχους μηχανισμούς του κυττάρου(Λιαλιάρης και Μουρελάτος, 1989).Ο φυσιολογικός αριθμός χρωματιδιακών ανταλλαγών για κάθε κύτταρο είναι 5-8, όταν αναφερόμαστε σε υγιή άτομα, που δεν εκτίθενται σε καρκινογόνους και μεταλλαξιογόνους παράγοντες(Kumar et al 2012).5.2 Η ιστορία των χρωματιδιακών ανταλλαγών -Μέθοδος FPGΓια πρώτη φορά παρατηρήθηκαν χρωµατιδιακές ανταλλαγές το 1958 από τον Herbert Taylor, ο οποίος κατάφερε με τους συνεργάτες του, την ενσωμάτωση σε DNA κυττάρων του φυτού Vicia faba (φακή) θυµιδίνης σηµασµένης µε ραδιενεργό τρίτιο (H3) µε τη χρήση αυτοραδιογραφικών µεθόδων(Taylor et al 1958). Κατ΄αυτόν τον τρόπο, έγινε επιβεβαίωση πειραµατικά του ηµισυντηρητικού τρόπο αντιγραφής του DNA και ανίχνευση µε ευκρίνεια των χρωµατιδιακών ανταλλαγών.…”
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