Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1989-6-26
pubmed:abstractText
Groups of 20 male and 20 female Wistar rats were given formaldehyde solution in their drinking water at concentrations of 0.50, 0.10, 0.02 and 0% for 24 months. Significant decreases in body weight and food and water intake were observed in the 0.50% group of both sexes and all rats in this group died by 24 months. Various non-neoplastic lesions were observed in rats, mostly in the 0.50% group. In this group, erosions and/or ulcers were evident in both the forestomach and glandular stomach. In the forestomach, squamous cell hyperplasia with or without hyperkeratosis and downward growth of basal cells were observed. Glandular hyperplasia of the fundic mucosa was noted along the limiting ridge. A few of such changes of the upper GI tract were seen in the 0.10% group. No toxicological abnormalities were found in 0.02% group of both sexes. There were no significant differences in the incidences of any tumors among groups of both sexes. Based on these findings, the no observable effect level of formaldehyde was 0.02% in the drinking water (10 mg/kg body wt./day).
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0300-483X
pubmed:author
pubmed:issnType
Print
pubmed:day
31
pubmed:volume
56
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
79-86
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
1989
pubmed:articleTitle
Chronic toxicity study on formaldehyde administered orally to rats.
pubmed:affiliation
Division of Toxicology, National Institute of Hygienic Sciences, Tokyo, Japan.
pubmed:publicationType
Journal Article