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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
9
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pubmed:dateCreated |
1996-2-13
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pubmed:abstractText |
We have studied the induction of nitric oxide during late allergic responses, using a guinea pig model of trimellitic anhydride (TMA)-induced airway allergy. TMA is a low molecular weight chemical which can cause occupational asthma. The activity of nitric oxide synthase (NOS) was investigated by the detection of 3H-labeled citrulline formation from 3H-labeled arginine. In sensitized animals, challenge with TMA conjugated to guinea pigs albumin (TMA-GPSA) increased the activity of Ca(2+)-independent NOS (inducible NOS; iNOS) in lung and bronchial tissues at 15-17 h after challenge compared to nonsensitized animals. The induction of iNOS activity was associated with an associated with an increased level of nitrite, an end metabolite of the l-arginine-NO pathway, in bronchoalveolar lavage fluid. In contrast to iNOS, the activity of Ca(2+)-dependent NOS (constitutive NOS; cNOS) was not affected by the allergen challenge. These results demonstrate that iNOS in bronchial tissue is induced late after allergen challenge in sensitized guinea pig.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Sep
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pubmed:issn |
0105-4538
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
50
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
760-4
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:8546274-Allergens,
pubmed-meshheading:8546274-Animals,
pubmed-meshheading:8546274-Asthma,
pubmed-meshheading:8546274-Bronchi,
pubmed-meshheading:8546274-Guinea Pigs,
pubmed-meshheading:8546274-Immunization,
pubmed-meshheading:8546274-Lung,
pubmed-meshheading:8546274-Male,
pubmed-meshheading:8546274-Nitric Oxide Synthase,
pubmed-meshheading:8546274-Occupational Diseases,
pubmed-meshheading:8546274-Phthalic Anhydrides
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pubmed:year |
1995
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pubmed:articleTitle |
Induction of nitric oxide synthase in a model of allergic occupational asthma.
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pubmed:affiliation |
Department of Clinical Pharmacology, Gothenburg University, Sahlgrens Hospital, Sweden.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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