Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2004-4-19
pubmed:abstractText
Carcinogenicity and chronic toxicity of vinyl acetate monomer (VA) were examined in male and female Crj:BDF1 mice and F344/DuCrj Rats. Groups of 50 mice and 50 rats of each sex were orally administered VA in drinking water containing 0, 400, 2,000 or 10,000 ppm (g/g) VA for 104 wk. Squamous cell tumors were clearly evident in the upper digestive tract of treated mice and rats, and in the larynx of treated mice of both sexes. In mice, squamous cell carcinomas and papillomas were observed in the oral cavity, esophagus, forestomach and larynx of the 10,000 ppm group, together with basal cell hyperplasia, squamous cell hyperplasia and epithelial dysplasia. In rats, incidences of squamous cell carcinomas and papillomas were increased in the oral cavity of the 10,000 ppm group of both sexes, and an esophagus squamous cell carcinoma was observed in a 10,000 ppm female. Pre-neoplastic hyperplasias were also noted. Mapping of the neoplastic and pre-neoplastic lesions in the oral cavity of the 10,000 ppm group revealed that both the lesions occurred predominantly at Level V in mice and at Level VI in rats. A lower confidence limit of a benchmark dose (BMDL10) of 477 mg/kg/d was obtained from a dose-response relationship between combined incidence of squamous cell carcinomas and papillomas in the oral cavity of mice and rats and the estimated daily VA intakes per body weight, and compared with literature values.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
1341-9145
pubmed:author
pubmed:issnType
Print
pubmed:volume
46
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
87-99
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:15090683-Administration, Oral, pubmed-meshheading:15090683-Animals, pubmed-meshheading:15090683-Body Weight, pubmed-meshheading:15090683-Carcinogens, pubmed-meshheading:15090683-Carcinoma, Squamous Cell, pubmed-meshheading:15090683-Digestive System Neoplasms, pubmed-meshheading:15090683-Esophageal Neoplasms, pubmed-meshheading:15090683-Female, pubmed-meshheading:15090683-Head and Neck Neoplasms, pubmed-meshheading:15090683-Incidence, pubmed-meshheading:15090683-Laryngeal Neoplasms, pubmed-meshheading:15090683-Male, pubmed-meshheading:15090683-Mice, pubmed-meshheading:15090683-Mouth Neoplasms, pubmed-meshheading:15090683-Rats, pubmed-meshheading:15090683-Time Factors, pubmed-meshheading:15090683-Toxicity Tests, pubmed-meshheading:15090683-Vinyl Compounds, pubmed-meshheading:15090683-Water Pollutants, Chemical, pubmed-meshheading:15090683-Water Supply
pubmed:year
2004
pubmed:articleTitle
Carcinogenicity and chronic toxicity in mice and rats administered vinyl acetate monomer in drinking water.
pubmed:affiliation
Japan Bioassay Research Center, Japan Industrial Safety and Health Association, Hadano, Kanagawa, Japan. yumeda@jisha.or.jp
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't