Linked Life Data

9689618

Source:http://linkedlifedata.com/resource/pubmed/id/9689618

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1998-10-5
pubmed:abstractText
Resorbable collagen membranes for guided tissue regeneration in periodontal therapy have shown promise but are not osteoinductive. As recombinant human bone morphogenetic protein-2 (rhBMP-2) is known to have an affinity for collagen, the use of this osteoinductive agent incorporated into a collagen vehicle may act as a suitable carrier to promote periodontal regeneration. The aim of this study was to investigate the effects of two different collagen delivery systems for rhBMP-2 in rat periodontal fenestration defects. Using the collagen membrane delivery system, 3 groups of adult Wistar rats which had surgical defects created on the right side of the mandible involving the removal of bone and exposure of the molar roots were treated with either rhBMP-2 in colagen membrane (BMPm) (n = 12 animals), or collagen membrane only (COLm) (n = 12), or were left untreated (UN) (n = 14). Using the collagen gel delivery system, surgical defects were treated with either rhBMP-2 incorporated in a collagen gel carrier (BMPg) (n = 5) or had collagen gel only (COLg) (n = 6). Animals were killed 10 d postoperatively and tissues processed for histology. New bone formation was significantly greater in BMPg compared with both BMPm and controls (p < 0.05). However, new cementum formation was significantly greater in BMPm (721 +/- 166 micron2, mean +/- SE) compared with COLm, COLg and UN (p < 0.02) (190 +/- 44 micron2, 327 +/- 114 micron2 and 172 +/- 33 micron2, respectively) and more than 1.5 times BMPg (451 +/- 158 micron2). In conclusion, both carrier systems for rhBMP-2 significantly increased new bone formation compared with controls during the early stages of periodontal wound healing. However, the more slowly dissolving collagen membrane carrier system for rhBMP-2 produced significantly greater new cementum compared with the collagen gel carrier, suggesting that a more prolonged exposure of rhBMP-2 is required to increased cementogenesis.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
D
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0022-3484
pubmed:author
pubmed:issnType
Print
pubmed:volume
33
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
226-36
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed-meshheading:9689618-Alveolar Bone Loss, pubmed-meshheading:9689618-Animals, pubmed-meshheading:9689618-Bone Morphogenetic Protein 2, pubmed-meshheading:9689618-Bone Morphogenetic Proteins, pubmed-meshheading:9689618-Collagen, pubmed-meshheading:9689618-Dental Cementum, pubmed-meshheading:9689618-Drug Carriers, pubmed-meshheading:9689618-Drug Delivery Systems, pubmed-meshheading:9689618-Gels, pubmed-meshheading:9689618-Guided Tissue Regeneration, Periodontal, pubmed-meshheading:9689618-Humans, pubmed-meshheading:9689618-Male, pubmed-meshheading:9689618-Membranes, Artificial, pubmed-meshheading:9689618-Osteogenesis, pubmed-meshheading:9689618-Periodontal Diseases, pubmed-meshheading:9689618-Periodontium, pubmed-meshheading:9689618-Rats, pubmed-meshheading:9689618-Rats, Wistar, pubmed-meshheading:9689618-Recombinant Proteins, pubmed-meshheading:9689618-Regeneration, pubmed-meshheading:9689618-Solubility, pubmed-meshheading:9689618-Time Factors, pubmed-meshheading:9689618-Transforming Growth Factor beta, pubmed-meshheading:9689618-Wound Healing
pubmed:year
1998
pubmed:articleTitle
Effect of two delivery systems for recombinant human bone morphogenetic protein-2 on periodontal regeneration in vivo.
pubmed:affiliation
Department of Periodontology, St Bartholomew's & The Royal London School of Medicine and Dentistry, University of London, UK.
pubmed:publicationType
Journal Article, Comparative Study