Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1986-1-27
pubmed:abstractText
The results of this study demonstrate, for the first time, that cigarette tar causes DNA damage. Incubation in vitro of phage PM2 DNA with aqueous extracts of cigarette tar results in the introduction of DNA single-strand breaks. The effects of protective enzymes and radical scavengers indicate the involvement of active oxygen species. Although the semiquinone components of tar reduce dioxygen forming superoxide radicals and hydrogen peroxide, our results suggest that hydroxyl radicals formed via metal catalyzed decomposition of hydrogen peroxide are ultimately responsible for the DNA lesions. Our results also suggest that the metals in tar are reduced by the semiquinone components of tar and by superoxide at comparable rates.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0006-291X
pubmed:author
pubmed:issnType
Print
pubmed:day
17
pubmed:volume
133
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
780-6
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1985
pubmed:articleTitle
Cigarette tar causes single-strand breaks in DNA.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't