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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5
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pubmed:dateCreated |
1980-9-28
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pubmed:abstractText |
The oxidative metabolism of rabbit alveolar macrophages (A-MO) was compared with that of rabbit polymorphonuclear leukocytes (PMN) with respect to H2O2 generation by intact cells or subcellular fractions. Rabbit PMN exhibited an increase in the oxygen uptake and a marked release of H2O2 upon addition of heat-killed E. coli in the presence and absence of opsonin. However, rabbit A-MO exhibited an increase in the oxygen uptake upon addition of E. coli only in the presence of anti-E. coli serum as an opsonin, whereas a very small amount of H2O2 release was observed during ingestion of the opsonized E. coli. The generation of O2- and H2O2 by a granule-rich fraction isolated from phagocytosing PMN was larger than that by a similar fraction isolated from resting PMN. However, there was no significant difference in O2- and H2O2 generation by the granule fractions between phagocytosing and resting A-MO in the presence of either NADH or NADPH. In contrast to the granule fraction of rabbit PMN, the O2- and H2O2 generating activities in the A-MO granule fraction were higher in the presence of NADH than in the presence of NADPH. The rates of NADH and NADPH oxidation by both A-MO and PMN granule fractions were measured with and without addition of Mn2+ to the assay medium. The effect of Mn2+ on the NAD(P)H oxidase was found to differ between rabbit A-MO and PMN.
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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 |
May
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pubmed:issn |
0021-924X
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
87
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1449-55
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pubmed:dateRevised |
2007-12-19
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pubmed:meshHeading |
pubmed-meshheading:6248509-Animals,
pubmed-meshheading:6248509-Escherichia coli,
pubmed-meshheading:6248509-Hydrogen Peroxide,
pubmed-meshheading:6248509-Macrophages,
pubmed-meshheading:6248509-Neutrophils,
pubmed-meshheading:6248509-Oxidation-Reduction,
pubmed-meshheading:6248509-Oxygen,
pubmed-meshheading:6248509-Oxygen Consumption,
pubmed-meshheading:6248509-Phagocytosis,
pubmed-meshheading:6248509-Rabbits,
pubmed-meshheading:6248509-Subcellular Fractions,
pubmed-meshheading:6248509-Superoxides
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pubmed:year |
1980
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pubmed:articleTitle |
Comparative studies on alveolar macrophages and polymorphonuclear leukocytes. I. H2O2 and O2- generation by rabbit alveolar macrophages.
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pubmed:publicationType |
Journal Article,
Comparative Study
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