Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
8
pubmed:dateCreated
1996-9-25
pubmed:abstractText
In this study, we sought to determine whether liposomal preparations containing a phospholipid conjugate of methotrexate and dimyristoylphosphatidylethanolamine (MTX-gamma-DMPE) incorporated within their lipid membranes are effective in suppressing established joint inflammation in a monoarticular model of arthritis in the rat. Arthritis was induced in the right knee joint of Lewis rats. The rats were treated with a single intra-articular injection of either free methotrexate (MTX), liposomal MTX [MTX-multilamellar vesicles (MLV)-1.2 microns or MTX-small unilamellar vesicles (SUV)-100 nm], control liposomes (E-LIPO) or saline into the inflamed knee 7 days after arthritis induction. There was no significant difference in knee swelling in MTX-, saline- and E-LIPO-treated rats up to 21 days after treatment. However, MTX-MLV treatment produced a significant reduction in knee swelling (26.5 +/- 6.0%: mean +/- S.E.M.) 1 day after intra-articular injection compared with MTX (3.5 +/- 3.5%) and MTX-SUV (14.4 +/- 2.4%), respectively. Over the next 20 days, knee swelling in MTX-MLV-treated rats fell progressively and almost returned to normal. MTX-MLV treatment also inhibited the cellular infiltration associated with the arthritis. Large multilamellar liposomal preparations of MTX-gamma-DMPE are more effective than free MTX and MTX-SUV in suppressing inflammation. Their differential effects in treating the antigen-induced arthritis model are related to their retention within the joint space.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0263-7103
pubmed:author
pubmed:issnType
Print
pubmed:volume
35
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
719-24
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1996
pubmed:articleTitle
A single intra-articular injection of liposomally conjugated methotrexate suppresses joint inflammation in rat antigen-induced arthritis.
pubmed:affiliation
Rheumatology Research Laboratory, University of Wales College of Medicine, Heath Park, Cardiff.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't