Document Detail


Genotoxicity and PAC analysis of particulate and vapour phases of environmental tobacco smoke.
MedLine Citation:
PMID:  3278208     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Samples of indoor air were collected from an office room (88 m3) both before smoking and during experimental smoking of 96 cigarettes by 10 persons within 6 h. The particulates were collected on glass-fibre filters and the vapour-phase compounds on XAD-2 resin. The samples were extracted with acetone and analysed quantitatively for polycyclic aromatic compounds and qualitatively with GC-MS. The extracts of filters and XAD-2 resins were fractionated into neutral/acidic and 2 basic (strong and weak bases) fractions; all these fractions were tested with the sister-chromatid exchange (SCE) assay in Chinese hamster ovary (CHO) cells and with the Salmonella/microsome test (strain TA98). Total concentrations of PAC were 205 ng/m3 in the background sample and 1207 ng/m3 after contamination by cigarette smoking. The total PAC concentrations were 4-6 times higher in the vapour phase than in the particulate phase. The fractions of the particulate samples collected before smoking showed mainly marginal genotoxic activity, whereas after smoking their genotoxicity increased dramatically. The fractions of the vapour phase samples were not genotoxic before smoking, but after smoking the neutral/acidic and strong basic fractions induced responses in both assays. The SCE assay was more sensitive towards the vapour-phase mutagens of environmental tobacco smoke (ETS). The relative responses of the two basic fractions, whereas the fraction containing neutral and acidic compounds was the most potent in the SCE assay. In the Salmonella test, the mutagenic activity was mainly detected with metabolic activation, while the induction of SCE in CHO cells was also seen without an exogenous metabolic activation system.
Authors:
S Salomaa; J Tuominen; E Skyttä
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Mutation research     Volume:  204     ISSN:  0027-5107     ISO Abbreviation:  Mutat. Res.     Publication Date:  1988 Feb 
Date Detail:
Created Date:  1988-03-29     Completed Date:  1988-03-29     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0400763     Medline TA:  Mutat Res     Country:  NETHERLANDS    
Other Details:
Languages:  eng     Pagination:  173-83     Citation Subset:  IM    
Affiliation:
Institute of Occupational Health, Department of Industrial Hygiene and Toxicology, Helsinki, Finland.
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MeSH Terms
Descriptor/Qualifier:
Air Pollutants, Occupational / analysis,  pharmacology*
Animals
Cell Line
Cricetinae
Cricetulus
Female
Fibroblasts / drug effects
Gases / analysis
Hydrogen-Ion Concentration
Male
Microsomes, Liver / metabolism
Mutagenicity Tests
Ovary
Particle Size
Plants, Toxic*
Polycyclic Compounds / analysis,  pharmacology*
Rats
Rats, Inbred Strains
Salmonella typhimurium / drug effects
Sister Chromatid Exchange / drug effects
Smoke / analysis*
Tobacco*
Chemical
Reg. No./Substance:
0/Air Pollutants, Occupational; 0/Gases; 0/Polycyclic Compounds; 0/Smoke

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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