Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
2008-1-24
pubmed:abstractText
Bilateral maxillary distraction was performed at a higher rate in rabbits to determine whether locally applied tissue-engineered osteogenic material (TEOM) enhances bone regeneration. The material was an injectable gel composed of autologous mesenchymal stem cells, which were cultured then induced to be osteogenic in character, and platelet-rich plasma (PRP). After a 5-day latency period, distraction devices were activated at a rate of 2.0 mm once daily for 4 days. Twelve rabbits were divided into 2 groups. At the end of distraction, the experimental group of rabbits received an injection of TEOM into the distracted tissue on one side, whereas, saline solution was injected into the distracted tissue on the contralateral side as the internal control. An additional control group received an injection of PRP or saline solution into the distracted tissue in the same way as the experimental group. The distraction regenerates were assessed by radiological and histomorphometric analyses. The radiodensity of the distraction gap injected with TEOM was significantly higher than that injected with PRP or saline solution at 2, 3, and 4 weeks postdistraction. The histomorphometric analysis also showed that both new bone zone and bony content in the distraction gap injected with TEOM were significantly increased when compared with PRP or saline solution. Our results demonstrated that the distraction gap injected with TEOM showed significant new bone formation. Therefore, injections of TEOM may be able to compensate for insufficient distraction gaps.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
D
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jan
pubmed:issn
1049-2275
pubmed:author
pubmed:issnType
Print
pubmed:volume
19
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
80-7
pubmed:meshHeading
pubmed-meshheading:18216669-Absorptiometry, Photon, pubmed-meshheading:18216669-Animals, pubmed-meshheading:18216669-Bone Density, pubmed-meshheading:18216669-Bone Regeneration, pubmed-meshheading:18216669-Cells, Cultured, pubmed-meshheading:18216669-Gels, pubmed-meshheading:18216669-Injections, pubmed-meshheading:18216669-Male, pubmed-meshheading:18216669-Maxilla, pubmed-meshheading:18216669-Mesenchymal Stem Cell Transplantation, pubmed-meshheading:18216669-Osteogenesis, pubmed-meshheading:18216669-Osteogenesis, Distraction, pubmed-meshheading:18216669-Platelet-Rich Plasma, pubmed-meshheading:18216669-Rabbits, pubmed-meshheading:18216669-Random Allocation, pubmed-meshheading:18216669-Sodium Chloride, pubmed-meshheading:18216669-Tissue Engineering, pubmed-meshheading:18216669-Transplantation, Autologous
pubmed:year
2008
pubmed:articleTitle
Promoted new bone formation in maxillary distraction osteogenesis using a tissue-engineered osteogenic material.
pubmed:affiliation
Department of Oral and Maxillofacial Surgery, Nagoya University Graduate School of Medicine, 65 Tsusumai-cho, Showa-ku, Nagoya, Japan.
pubmed:publicationType
Journal Article, Comparative Study