Linked Life Data

2840138

Source:http://linkedlifedata.com/resource/pubmed/id/2840138

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
1988-9-6
pubmed:abstractText
The temporal and quantitative relationship between increases in airway responsiveness and late asthmatic reactions provoked by inhalation challenge with occupational agents was studied in nine individuals who underwent a total of thirteen active inhalation challenge tests with one of the following agents: toluene diisocyanate (TDI), maleic anhydride (MA), trimellitic anhydride (TMA), carmine, or colophony (pine wood resin). Airway responsiveness to inhaled histamine (histamine PC20) was measured before and at approximately 3 and 24 h after control and active challenge exposure, when, on all but four occasions, FEV1 was within 10% of pre-challenge values. Significant increases (p less than 0.02) in histamine responsiveness were present at 3 h following challenge exposures which subsequently provoked a definite late asthmatic reaction (FEV1 decrease greater than 15% 3-11 h post challenge). These increases in histamine responsiveness were significantly greater than those at 3 h following the challenges which provoked an isolated early (FEV1 decrease less than 6% 3-11 h post-challenge) or equivocal late asthmatic reaction (FEV1 decrease 6-15% 3-11 h post-challenge) (p less than 0.03). Although histamine responsiveness remained high at 24 h after challenges provoking late asthmatic reactions (p less than 0.05), this was less than the increase at 3 h and not significantly different from the PC20 at 24 h after challenges provoking either single early or equivocal late asthmatic reactions.(ABSTRACT TRUNCATED AT 250 WORDS)
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0395-3890
pubmed:author
pubmed:issnType
Print
pubmed:volume
23
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
577-81
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:articleTitle
Late asthmatic reactions and changes in histamine responsiveness provoked by occupational agents.
pubmed:affiliation
John Radcliffe Hospital, Headington, Oxford, UK.
pubmed:publicationType
Journal Article