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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
14
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pubmed:dateCreated |
1991-8-12
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pubmed:abstractText |
The pharmacokinetics of recombinant human granulocyte colony-stimulating factor conjugated to polyethylene glycol (PEG-rhG-CSF) and rhG-CSF were studied in male Sprague-Dawley rats. The serum concentration after i.v. administration at a dose of 100 micrograms protein/kg was investigated by a bioassay. The serum rhG-CSF concentration decreased steadily after injection with a terminal half-life of 1.79 h. The PEG-rhG-CSF concentration after injection decreased much more slowly with a half-life of 7.05 h. The slower disappearance of PEG-rhG-CSF resulted in a greater area under the concentration-time curve. The neutrophil count after 100 micrograms of protein/kg of rhG-CSF administration reached a peak 12 h after injection and returned to the control level 48 h after injection. The neutrophil count after 100 micrograms of protein/kg of PEG-rhG-CSF administration was identical to that of rhG-CSF after 12 h but the highest level was maintained for 24 to 72 h after injection and returned to the control level after 168 h. These data indicated that PEG-rhG-CSF administration exerted a sustained biological effect on peripheral blood neutrophils. It is expected that PEG-rhG-CSF may contribute greatly to human G-CSF treatment because it has a prolonged neutrophil-proliferating activity enabling fewer administrations.
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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 |
Jul
|
pubmed:issn |
0008-5472
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
15
|
pubmed:volume |
51
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
3710-4
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pubmed:dateRevised |
2003-11-14
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pubmed:meshHeading |
pubmed-meshheading:1712246-Animals,
pubmed-meshheading:1712246-Female,
pubmed-meshheading:1712246-Granulocyte Colony-Stimulating Factor,
pubmed-meshheading:1712246-Hematopoiesis,
pubmed-meshheading:1712246-Male,
pubmed-meshheading:1712246-Mice,
pubmed-meshheading:1712246-Mice, Inbred C3H,
pubmed-meshheading:1712246-Polyethylene Glycols,
pubmed-meshheading:1712246-Rats,
pubmed-meshheading:1712246-Rats, Inbred Strains,
pubmed-meshheading:1712246-Recombinant Proteins
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pubmed:year |
1991
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pubmed:articleTitle |
Pharmacokinetics of recombinant human granulocyte colony-stimulating factor conjugated to polyethylene glycol in rats.
|
pubmed:affiliation |
Kirin Brewery Co., Ltd., Pharmaceutical Development Laboratory, Gunma, Japan.
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pubmed:publicationType |
Journal Article
|