Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
1991-7-18
pubmed:abstractText
Multilamellar vesicles (300-350 nm) were infused into the rat femoral vein at the rate of 4, 40 and 400 nmol phosphatidycholine min-1 for 6 h using [3H]inulin as an aqueous marker. The time courses of blood concentration of vesicles, normalized for infusion rate, were not superimposable, showing the non-linearity of liposome disposition in the blood circulation. These time courses of blood concentration were well fitted by a single Michaelis-Menten equation. On the other hand, the time courses of tissue content could not be so accommodated. Additionally, the observed relationship between the uptake of liposomes by the liver and their clearance from it and other organs differed essentially from a simulation based on Michaelis-Menten type saturable kinetics. Therefore, it is suggested that there is a time-dependent non-Michaelis-Menten type process in the phagocytosis of macrophages in the reticuloendothelial system.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0022-3573
pubmed:author
pubmed:issnType
Print
pubmed:volume
43
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
162-6
pubmed:dateRevised
2011-11-17
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
Saturable, non-Michaelis-Menten uptake of liposomes by the reticuloendothelial system.
pubmed:affiliation
Faculty of Pharmaceutical Sciences, University of Tokushima, Japan.
pubmed:publicationType
Journal Article, In Vitro