Linked Life Data

6683881

Source:http://linkedlifedata.com/resource/pubmed/id/6683881

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1983-9-23
pubmed:abstractText
The pulmonary and dermal effects of exposure to Na2PtCl6 were investigated in cynomolgus monkeys (Macaca fascicularis) exposed by the nose-only inhalation and percutaneous routes. Separate inhalation exposures were performed in monkeys at 200 micrograms/m3 and 2 mg/m3 (4 hr/day, biweekly for 12 weeks), while another group of monkeys was percutaneously exposed biweekly by an open patch method. After a 2-week refractory period, serial Na2PtCl6 bronchoprovocation challenges and intradermal Na2PtCl6 sensitivity evaluations were performed. Na2PtCl6 bronchoprovocation in naive control monkeys yielded significant impairments in post-challenge pulmonary mechanics and ventilatory function. These results indicate a pharmacologic or irritant-mediated bronchoconstriction mechanism for acute exposure to this compound. When the post-challenge pulmonary function of animals exposed for the 12-week exposure regimen (across treatments) was compared to pulmonary deficits observed in control animals upon challenge, significantly greater pulmonary deficits were seen in animals exposed at the 200 micrograms/m3 concentration. Exposure at this concentration yielded significant changes in post-challenge average pulmonary flow resistance (RL) and forced expiratory volume in 0.5 sec corrected for vital capacity (FEV0.5/FVC) when compared to control monkey responses. Animals exposed by the percutaneous route or at 2 mg/m3 showed no significant post-challenge pulmonary deficits when compared to control animals. Intradermal Na2PtCl6 sensitivity was found not to be exposure related in the conditions of this experiment.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0041-008X
pubmed:author
pubmed:issnType
Print
pubmed:volume
69
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
377-84
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
1983
pubmed:articleTitle
Pulmonary hyperreactivity in cynomolgus monkeys (Macaca fascicularis) from nose-only inhalation exposure to disodium hexachloroplatinate, Na2PtCl6.
pubmed:publicationType
Journal Article