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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
2001-1-19
pubmed:abstractText
Lung cancer is the most common cause of cancer death among women in Taiwan. Epidemiological studies of lung cancer in Chinese women indicate that factors other than cigarette smoking are related to lung cancer risk. One such factor may be exposure to carcinogens formed during the cooking of food. The carcinogenic compounds in oil smoke particulates from Chinese cooking practice have not yet been characterized. To reveal the relationship between the high mortality rate of lung cancer in Chinese women and exposure to cooking oil fumes (COF), DNA adduct formation, induced by COF collected from frying fish under domestic conditions, was assessed in human lung adenocarcinoma CL-3 cell lines using the (32)P-postlabeling assay. DNA adduct levels were induced by COF in CL-3 cells in a dose-dependent manner. DNA adducts with a diagonal radioactive zone (DRZ) were observed when CL-3 cells were treated with COF. Surprisingly, only one spot of the DNA adduct profile was in the DRZ. The DNA adduct was analyzed by HPLC coupled with an on-line radioactive detector. The retention time of the major DNA adduct corresponded to that of authentic benzo[a]pyrene 7,8-diol 9, 10-epoxide N2-deoxyguanonsine (BPDE-N2-dG). Moreover, the mass spectrum of the major DNA adduct in CL-3 cells was confirmed to be BPDE-N2-dG by liquid chromatography/mass spectrometry. In conclusion, BPDE-N2-dG adduct formation in human lung cells supports epidemiological findings of an association between cooking fume exposure and lung cancer in Chinese women.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0893-228X
pubmed:author
pubmed:issnType
Print
pubmed:volume
13
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1046-50
pubmed:dateRevised
2010-11-18
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
Identification of benzo[a]pyrene 7,8-diol 9,10-epoxide N2-deoxyguanosine in human lung adenocarcinoma cells exposed to cooking oil fumes from frying fish under domestic conditions.
pubmed:affiliation
Institute of Biochemistry & Toxicology, Chung Shan Medical & Dental College, Taichung, Taiwan, PRC.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't