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Increased sister chromatid exchange in the peripheral blood lymphocytes of young women who smoke cigarettes. 1999

R E Rowland, and K M Harding
Institute of Molecular BioSciences, Massey University, Palmerston North, New Zealand. R.E.Rowland@massey.ac.nz

Rates of sister chromatid exchange in dividing human peripheral blood lymphocytes were determined and compared between smoking and non smoking young women between the ages of 16 and 25. Chromosomes block-stained with Giemsa were also examined for chromosome aberrations. A striking difference in the frequency of sister chromatid exchange was found between young women who smoked and those who did not. Smokers scored a significantly higher, F(1) = 15.99, p = 0.0015, rate of sister chromatid exchange than non smokers. Smokers scored a higher mean of SCEs per cell (12.771, SD 3.53) than non smokers (9.712, SD 2.53). Smokers also scored a higher range of SCEs (4 to 28) as opposed to non smokers (4 to 17). No statistical difference was found between smokers and non smokers for the frequency of chromosome aberrations. The significantly higher frequency of exchange in young smoking women may indicate that initial damage to the DNA in many of these women has probably already occurred, thus causing an increased risk of developing cancer later in life.

UI MeSH Term Description Entries
D007621 Karyotyping Mapping of the KARYOTYPE of a cell. Karyotype Analysis Methods,Analysis Method, Karyotype,Analysis Methods, Karyotype,Karyotype Analysis Method,Karyotypings,Method, Karyotype Analysis,Methods, Karyotype Analysis
D008214 Lymphocytes White blood cells formed in the body's lymphoid tissue. The nucleus is round or ovoid with coarse, irregularly clumped chromatin while the cytoplasm is typically pale blue with azurophilic (if any) granules. Most lymphocytes can be classified as either T or B (with subpopulations of each), or NATURAL KILLER CELLS. Lymphoid Cells,Cell, Lymphoid,Cells, Lymphoid,Lymphocyte,Lymphoid Cell
D012016 Reference Values The range or frequency distribution of a measurement in a population (of organisms, organs or things) that has not been selected for the presence of disease or abnormality. Normal Range,Normal Values,Reference Ranges,Normal Ranges,Normal Value,Range, Normal,Range, Reference,Ranges, Normal,Ranges, Reference,Reference Range,Reference Value,Value, Normal,Value, Reference,Values, Normal,Values, Reference
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000293 Adolescent A person 13 to 18 years of age. Adolescence,Youth,Adolescents,Adolescents, Female,Adolescents, Male,Teenagers,Teens,Adolescent, Female,Adolescent, Male,Female Adolescent,Female Adolescents,Male Adolescent,Male Adolescents,Teen,Teenager,Youths
D000328 Adult A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available. Adults
D012854 Sister Chromatid Exchange An exchange of segments between the sister chromatids of a chromosome, either between the sister chromatids of a meiotic tetrad or between the sister chromatids of a duplicated somatic chromosome. Its frequency is increased by ultraviolet and ionizing radiation and other mutagenic agents and is particularly high in BLOOM SYNDROME. Chromatid Exchange, Sister,Chromatid Exchanges, Sister,Exchange, Sister Chromatid,Exchanges, Sister Chromatid,Sister Chromatid Exchanges
D012907 Smoking Willful or deliberate act of inhaling and exhaling SMOKE from burning substances or agents held by hand. Smoking Behaviors,Smoking Habit,Behavior, Smoking,Behaviors, Smoking,Habit, Smoking,Habits, Smoking,Smoking Behavior,Smoking Habits

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