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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2001-7-16
pubmed:abstractText
This study was designed to examine the effect of aging on bone formation induced by recombinant human bone morphogenetic protein-2 (rhBMP-2) combined with a fibrous collagen membrane (FCM). Implantation was done subperiosteally in bilateral palatal grooves in 34 male Wistar rats divided into three age groups: a 10-week-old group (10w group), a 30-week-old group (30w group) and a 70-week-old group (70w group). RhBMP-2-combined FCMs were implanted on the left palatal grooves as BMP-implanted sites (BMP site), while rhBMP-2 was not implanted on the right palatal grooves as control sites. The rats were sacrificed 6 weeks after implantation, and histometric evaluations were performed. New bone formation was observed in every site of each age group and the new bone was almost completely continuous with the original bone. The new bone volume (NBV) of the BMP site was significantly higher than that of the control site in each age group. The NBV of both the control and BMP sites were highest in the 10w group and lowest in the 70w group. The disparity of NBV between the control and BMP sites, which indicated the response to implanted BMP excluding the effect of skeletal growth and surgical stimulation, did not significantly differ among the age groups. These results indicate that rhBMP-2-combined FCM has the ability to induce new bone formation continuous with original bone even in senescent rats. Furthermore, it appeared that, in the case of palatal subperiosteal implantation, the responsiveness to implanted BMP was independent of age, although the total volume of newly formed bone declined with aging.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
D
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0022-3484
pubmed:author
pubmed:issnType
Print
pubmed:volume
36
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
175-82
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed-meshheading:11453116-Aging, pubmed-meshheading:11453116-Animals, pubmed-meshheading:11453116-Body Weight, pubmed-meshheading:11453116-Bone Morphogenetic Protein 2, pubmed-meshheading:11453116-Bone Morphogenetic Proteins, pubmed-meshheading:11453116-Collagen, pubmed-meshheading:11453116-Drug Carriers, pubmed-meshheading:11453116-Follow-Up Studies, pubmed-meshheading:11453116-Humans, pubmed-meshheading:11453116-Male, pubmed-meshheading:11453116-Membranes, Artificial, pubmed-meshheading:11453116-Osteocytes, pubmed-meshheading:11453116-Osteogenesis, pubmed-meshheading:11453116-Palate, pubmed-meshheading:11453116-Periosteum, pubmed-meshheading:11453116-Prostheses and Implants, pubmed-meshheading:11453116-Rats, pubmed-meshheading:11453116-Rats, Wistar, pubmed-meshheading:11453116-Recombinant Proteins, pubmed-meshheading:11453116-Statistics, Nonparametric, pubmed-meshheading:11453116-Transforming Growth Factor beta
pubmed:year
2001
pubmed:articleTitle
Effect of aging on bone formation induced by recombinant human bone morphogenetic protein-2 combined with fibrous collagen membranes at subperiosteal sites.
pubmed:affiliation
Department of Oral Health Science, Graduate School of Dental Medicine, Hokkaido University, Sapporo, Japan. mats@perio2.den.hokudai.ac.jp
pubmed:publicationType
Journal Article