Linked Life Data

6740671

Source:http://linkedlifedata.com/resource/pubmed/id/6740671

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1984-8-7
pubmed:abstractText
A single ip dose of 1,1-dichloroethylene (DCE) to mice (125 mg/kg) caused a reduction within 24 hr in cytochrome P-450 and related monooxygenases in lung microsomes, with no corresponding changes in liver and kidney microsomes. Light microscopy revealed that at 24 hr, DCE caused a highly selective and complete loss of the bronchiolar nonciliated (Clara) cells at all levels of the tracheobronchial tree. Electron microscopy showed that at this time, the bronchiolar luminal surface was covered by flattened, elongated ciliated cells. Within 24 hr total microsomal cytochrome P-450 and NADPH cytochrome c reductase were maximally reduced to about 50% of control and cytochrome P-450-dependent enzyme activities decreased to about 60% of control. By contrast, coumarin 7-hydroxylase was reduced to approximately 10% of control within 4 days. Since pulmonary coumarin 7-hydroxylase has been shown to reside almost exclusively in the Clara cells, this finding is in agreement with the observed extensive necrosis of the Clara cells. The return of lung microsomal P-450-linked enzyme activities took between 3 and 6 weeks and was paralleled by a corresponding slow reappearance of the bronchiolar Clara cells.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0041-008X
pubmed:author
pubmed:issnType
Print
pubmed:day
30
pubmed:volume
74
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
201-13
pubmed:dateRevised
2005-11-17
pubmed:meshHeading
pubmed:year
1984
pubmed:articleTitle
Selective damage to nonciliated bronchiolar epithelial cells in relation to impairment of pulmonary monooxygenase activities by 1,1-dichloroethylene in mice.
pubmed:publicationType
Journal Article