Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1988-8-17
pubmed:abstractText
The influence of cyclophosphamide-induced granulocyte depletion on toluene diisocyanate (TDI)-related changes in airway reactivity and pathology was assessed in guinea pigs. Twelve cyclophosphamide-treated and 12 control animals comprising each group were studied physiologically before and 2 h after a single 10-min exposure to 3 ppm of TDI. Reactivity was determined in intact unanesthetized animals by measuring specific airway conductance before and during intravenous acetylcholine infusion. After testing, tracheal tissue for light microscopic examination was obtained from three hyperreactive guinea pigs in each exposed group and compared with tissue from treated and control animals (n = 3 each) that had not been TDI exposed. Cyclophosphamide treatment caused substantial decreases in both circulating and airway granulocyte counts. However, the incidence and degree of bronchial hyperreactivity that occurred 2 h post-TDI was similar in the untreated and treated groups. Our results indicate that TDI-induced bronchial hyperreactivity 1) occurs shortly after a brief high concentration exposure and 2) appears independent of circulating or airway granulocyte counts.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
8750-7587
pubmed:author
pubmed:issnType
Print
pubmed:volume
64
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1773-8
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1988
pubmed:articleTitle
Toluene diisocyanate-induced airway hyperreactivity in guinea pigs depleted of granulocytes.
pubmed:affiliation
Department of Medicine, University of Cincinnati School of Medicine, Ohio 45267.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S.