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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1995-4-4
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pubmed:abstractText |
We have tested the effect of methotrexate (MTX) on platelet activating factor (PAF)-induced neutrophil and eosinophil locomotion, neutrophil leukotriene B4 (LTB4) generation and mononuclear cell DNA synthesis. Neutrophils from patients treated with low dose methotrexate showed reduced PAF-induced chemotactic responses (727.8 +/- 72.2/10 HPF vs 481.9 +/- 87.3/10 HPF, p < 0.05). Both MTX and the specific PAF antagonist BN-52021 significantly inhibited PAF-induced eosinophil and neutrophil locomotion in a dose-dependent manner. MTX also reduced calcium ionophore-driven LTB4 generation from the neutrophils of asthmatics (358.9 +/- 39.5 pg/10(6) cells vs 240.1 +/- 29.1 pg/10(6) cells, p < 0.05) and attenuated PHA-induced mononuclear DNA synthesis as shown by a reduction in 3H-thymidine uptake and propidium iodide staining. These findings support the view that the beneficial effects of MTX in asthma may be due not only to its anti-mitotic effects on the proliferation of mononuclear cells but also to direct effects on granulocyte locomotion and production of LTB4.
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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 |
Jun
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pubmed:issn |
0125-877X
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
12
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
65-71
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:7872994-Asthma,
pubmed-meshheading:7872994-Chemotaxis, Leukocyte,
pubmed-meshheading:7872994-Dose-Response Relationship, Drug,
pubmed-meshheading:7872994-Eosinophils,
pubmed-meshheading:7872994-Humans,
pubmed-meshheading:7872994-Leukocytes, Mononuclear,
pubmed-meshheading:7872994-Leukotriene B4,
pubmed-meshheading:7872994-Methotrexate,
pubmed-meshheading:7872994-Neutrophils,
pubmed-meshheading:7872994-Platelet Activating Factor
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pubmed:year |
1994
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pubmed:articleTitle |
The inhibitory effect of methotrexate on PAF-induced neutrophil and eosinophil locomotion in asthmatic patients.
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pubmed:affiliation |
Section of Allergy and Clinical Immunology, Cathay General Hospital, Taipei, Taiwan.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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