| pubmed-article:2430004 | rdf:type | pubmed:Citation | lld:pubmed |
| pubmed-article:2430004 | lifeskim:mentions | umls-concept:C0039771 | lld:lifeskim |
| pubmed-article:2430004 | lifeskim:mentions | umls-concept:C0086045 | lld:lifeskim |
| pubmed-article:2430004 | lifeskim:mentions | umls-concept:C0007412 | lld:lifeskim |
| pubmed-article:2430004 | lifeskim:mentions | umls-concept:C1280500 | lld:lifeskim |
| pubmed-article:2430004 | lifeskim:mentions | umls-concept:C1155000 | lld:lifeskim |
| pubmed-article:2430004 | lifeskim:mentions | umls-concept:C0302350 | lld:lifeskim |
| pubmed-article:2430004 | lifeskim:mentions | umls-concept:C0059372 | lld:lifeskim |
| pubmed-article:2430004 | pubmed:issue | 4 Pt 1 | lld:pubmed |
| pubmed-article:2430004 | pubmed:dateCreated | 1986-11-24 | lld:pubmed |
| pubmed-article:2430004 | pubmed:abstractText | Methylxanthines are primary agents used in treatment of hypersensitivity disease. Because polymorphonuclear leukocyte (PMN) activation is associated with generation of potent inflammatory mediators, xanthine effects on the PMN respiratory burst were studied. Enprofylline, a xanthine with important therapeutic potential, does not antagonize adenosine and was contrasted with theophylline. Although enprofylline was more potent at low concentrations, both drugs exhibited dose-dependent inhibition of PMN activation at concentrations greater than 10 mumol/L (1.8 micrograms/ml). Oxygen metabolite generation was decreased by 30% to 40% at therapeutic drug concentrations and by 85% at 1 mmol/L of theophylline. Inhibition by isoproterenol or prostaglandin E2 but not dibutyryl cAMP was potentiated by either xanthine. Isoproterenol effects were also increased when isoproterenol was evaluated in whole blood specimens obtained from subjects after a loading dose of aminophylline. Although these results were most compatible with cAMP phosphodiesterase inhibition, other commonly proposed mechanisms of methylxanthine activity were also studied. Theophylline but not enprofylline blocked adenosine inhibition of PMN activation. Neither xanthine shifted the calcium dose-response when PMNs were activated with calcium ionophore. Because oxygen metabolites generated by the FMN are mediators of inflammation and hypersensitivity, direct inhibition of PMN activation as well as potentiation of catecholamine activity may be important therapeutic effects of theophylline and enprofylline. | lld:pubmed |
| pubmed-article:2430004 | pubmed:grant | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:2430004 | pubmed:language | eng | lld:pubmed |
| pubmed-article:2430004 | pubmed:journal | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:2430004 | pubmed:citationSubset | AIM | lld:pubmed |
| pubmed-article:2430004 | pubmed:chemical | http://linkedlifedata.com/r... | lld:pubmed |
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| pubmed-article:2430004 | pubmed:chemical | http://linkedlifedata.com/r... | lld:pubmed |
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| pubmed-article:2430004 | pubmed:chemical | http://linkedlifedata.com/r... | lld:pubmed |
| pubmed-article:2430004 | pubmed:status | MEDLINE | lld:pubmed |
| pubmed-article:2430004 | pubmed:month | Oct | lld:pubmed |
| pubmed-article:2430004 | pubmed:issn | 0091-6749 | lld:pubmed |
| pubmed-article:2430004 | pubmed:author | pubmed-author:VestalR ERE | lld:pubmed |
| pubmed-article:2430004 | pubmed:author | pubmed-author:CrowleyJ JJJ | lld:pubmed |
| pubmed-article:2430004 | pubmed:author | pubmed-author:NielsonC PCP | lld:pubmed |
| pubmed-article:2430004 | pubmed:author | pubmed-author:CusackB JBJ | lld:pubmed |
| pubmed-article:2430004 | pubmed:issnType | Print | lld:pubmed |
| pubmed-article:2430004 | pubmed:volume | 78 | lld:pubmed |
| pubmed-article:2430004 | pubmed:owner | NLM | lld:pubmed |
| pubmed-article:2430004 | pubmed:authorsComplete | Y | lld:pubmed |
| pubmed-article:2430004 | pubmed:pagination | 660-7 | lld:pubmed |
| pubmed-article:2430004 | pubmed:dateRevised | 2007-11-14 | lld:pubmed |
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| pubmed-article:2430004 | pubmed:meshHeading | pubmed-meshheading:2430004-... | lld:pubmed |
| pubmed-article:2430004 | pubmed:meshHeading | pubmed-meshheading:2430004-... | lld:pubmed |
| pubmed-article:2430004 | pubmed:year | 1986 | lld:pubmed |
| pubmed-article:2430004 | pubmed:articleTitle | Therapeutic concentrations of theophylline and enprofylline potentiate catecholamine effects and inhibit leukocyte activation. | lld:pubmed |
| pubmed-article:2430004 | pubmed:publicationType | Journal Article | lld:pubmed |
| pubmed-article:2430004 | pubmed:publicationType | Research Support, U.S. Gov't, P.H.S. | lld:pubmed |
| pubmed-article:2430004 | pubmed:publicationType | Research Support, U.S. Gov't, Non-P.H.S. | lld:pubmed |
| pubmed-article:2430004 | pubmed:publicationType | Research Support, Non-U.S. Gov't | lld:pubmed |
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