Linear relationship between DNA adducts in human lung and cigarette smoking. 1990

R C Garner, and J Cuzick, and D Jenkins, and D H Phillips, and A Hewer, and M M King, and M N Routledge
Cancer Research Unit, University of York, Heslington, UK.

Human lung and bladder DNA has been isolated and purified from either surgical or autopsy specimens. Smoking history details were obtained from patients or their close relatives. Each DNA sample was investigated using the nuclease P1 digestion modification of the 32P-postlabelling procedure. Data are presented for 48 lung and 19 bladder specimens. The samples were subdivided into three groups for data analysis, viz. smokers, former smokers and nonsmokers. The mean adduct levels (adducts per 10(8) nucleotides) in lung samples were: [see text] The chromatographic pattern of bladder DNA adducts for smokers was similar to that for smokers' lung DNA, although less intense. Adduct levels in former smokers tended to be lower than in smokers, although loss of adducts appeared to require several years after cessation of smoking. These findings support a link between DNA adduct levels and cigarette smoking, for both the lung and the bladder. For the former tissue there was a strong linear correlation between adduct levels and the number of cigarettes smoked.

UI MeSH Term Description Entries
D008168 Lung Either of the pair of organs occupying the cavity of the thorax that effect the aeration of the blood. Lungs
D008297 Male Males
D008875 Middle Aged An adult aged 45 - 64 years. Middle Age
D001743 Urinary Bladder A musculomembranous sac along the URINARY TRACT. URINE flows from the KIDNEYS into the bladder via the ureters (URETER), and is held there until URINATION. Bladder,Bladder Detrusor Muscle,Detrusor Urinae,Bladder Detrusor Muscles,Bladder, Urinary,Detrusor Muscle, Bladder,Detrusor Muscles, Bladder
D004247 DNA A deoxyribonucleotide polymer that is the primary genetic material of all cells. Eukaryotic and prokaryotic organisms normally contain DNA in a double-stranded state, yet several important biological processes transiently involve single-stranded regions. DNA, which consists of a polysugar-phosphate backbone possessing projections of purines (adenine and guanine) and pyrimidines (thymine and cytosine), forms a double helix that is held together by hydrogen bonds between these purines and pyrimidines (adenine to thymine and guanine to cytosine). DNA, Double-Stranded,Deoxyribonucleic Acid,ds-DNA,DNA, Double Stranded,Double-Stranded DNA,ds DNA
D005260 Female Females
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000368 Aged A person 65 years of age or older. For a person older than 79 years, AGED, 80 AND OVER is available. Elderly
D000369 Aged, 80 and over Persons 80 years of age and older. Oldest Old
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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