Linked Life Data

12122243

Source:http://linkedlifedata.com/resource/pubmed/id/12122243

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2002-7-17
pubmed:abstractText
In this study, we hypothesize that loading more marrow-derived mesenchymal stem cells (MSCs) into porous material by using a low-pressure system during subculture, creating a composite which combines MSCs and a novel mechanical reinforced porous hydroxyapatite, can result in more bone tissue formation in vivo. Within 26 weeks postimplantation, we examined in vivo bone formation of the experimental group with 100 mmHg pressure applied to porous HA blocks loaded with MSCs. For in vivo testing, the 2-week subcultured HA/MSC composites were implanted into subcutaneous sites of syngeneic rats. These implants were harvested at 13 and 26 weeks after implantation. SEM showed that the pore surface is covered by osteoblasts as well as collagenous extracellular matrix at 13 weeks. Light microscopy revealed the quantity of bone at 26 weeks was greater than at 13 weeks. These results showed that the novel mechanical reinforced porous HA combined with MSC has more potential for bone formation at 100 mmHg, making this method very efficient for bone reconstruction.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
0959-2989
pubmed:author
pubmed:issnType
Print
pubmed:volume
12
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
203-9
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2002
pubmed:articleTitle
Long-term durability of porous hydroxyapatite with low-pressure system to support osteogenesis of mesenchymal stem cells.
pubmed:affiliation
Tissue Engineering Research Center, Tsukuba Center 4, National Institute of Advanced Industrial Science and Technology, Ibaraki 305-8562, Japan. djianc@online.sh.cn
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't