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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
1997-1-13
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pubmed:abstractText |
Intestinal absorption of recombinant human erythropoietin (Epo) encapsulated in liposomes (Epo/liposomes) was examined by measuring the pharmacological effects of Epo after oral administration in rats. Circulating reticulocyte counts after oral administration of Epo/liposomes showed a profile different from that after intravenous administration. Epo/liposomes 0.1 micron in diameter were absorbed more effectively than those 0.2 micron in diameter. In the 0.1 micron Epo/liposomes composed of dipalmitoylphosphatidylcholine (DPPC) and soybean-derived sterols (SS), cholesterol (Ch), or soybean-derived sterylglucosides (SG), DPPC/SS (in molar ratio 7/2) and DPPC/Ch (7/2) showed higher efficiency in intestinal absorption than DPPC/Ch (7/4) and DPPC/SG (7/2) at a low dose by the sysmex method. Pharmacological availabilities for oral administration of Epo/liposomes were 0.74-31% and 3.3-30% as evaluated by circulating reticulocyte counts and percentage circulating reticulocytes of erythrocytes, respectively, in comparison to those for intravenous administration of the same dose.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/1,2-Dipalmitoylphosphatidylcholine,
http://linkedlifedata.com/resource/pubmed/chemical/Erythropoietin,
http://linkedlifedata.com/resource/pubmed/chemical/Liposomes,
http://linkedlifedata.com/resource/pubmed/chemical/Recombinant Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Sterols
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pubmed:status |
MEDLINE
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pubmed:month |
Apr
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pubmed:issn |
0022-3549
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
85
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
440-5
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:8901085-1,2-Dipalmitoylphosphatidylcholine,
pubmed-meshheading:8901085-Animals,
pubmed-meshheading:8901085-Biological Availability,
pubmed-meshheading:8901085-Erythrocyte Count,
pubmed-meshheading:8901085-Erythropoietin,
pubmed-meshheading:8901085-Humans,
pubmed-meshheading:8901085-Intestinal Absorption,
pubmed-meshheading:8901085-Liposomes,
pubmed-meshheading:8901085-Male,
pubmed-meshheading:8901085-Rats,
pubmed-meshheading:8901085-Rats, Wistar,
pubmed-meshheading:8901085-Recombinant Proteins,
pubmed-meshheading:8901085-Soybeans,
pubmed-meshheading:8901085-Sterols
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pubmed:year |
1996
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pubmed:articleTitle |
Oral administration of recombinant human erythropoietin in liposomes in rats: influence of lipid composition and size of liposomes on bioavailability.
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pubmed:affiliation |
Department of Pharmaceutics, Hoshi University, Tokyo, Japan.
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pubmed:publicationType |
Journal Article,
Comparative Study
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