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Related Concept Videos

Bone Remodeling and Repair01:31

Bone Remodeling and Repair

Osteoclasts are cells responsible for bone resorption and remodeling. They originate from hematopoietic progenitor cells present in the bone marrow. Numerous progenitor cells fuse to form multinucleated cells, each with 10-20 nuclei. A single osteoclast has a diameter of 150 to 200 µM. These cells have ruffled borders that break down the underlying bone tissue and release minerals such as calcium into the blood in bone resorption. Osteoclasts cling to bones with their ruffled edges during bone...
Bone Remodeling01:40

Bone Remodeling

Bone remodeling is a continuous and balanced process of bone resorption by osteoclasts and bone formation by osteoblasts. In adults, it helps maintain bone mass and calcium homeostasis. While mechanical stress can stimulate turnover as part of the normal maintenance and reparative process, several hormones also regulate bone remodeling.
Bone Formation by Intramembranous Ossification01:29

Bone Formation by Intramembranous Ossification

Intramembranous ossification is one of the two processes involved in the development of bones within an embryo. The flat bones of the face, most of the cranial bones, and the clavicles are formed via this process. During intramembranous ossification, the bones develop directly from sheets of undifferentiated mesenchymal connective tissue.
The process begins when mesenchymal cells in the embryonic skeleton gather together and differentiate into osteogenic cells, which then develop into...

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Site-Directed Immobilization of Bone Morphogenetic Protein 2 to Solid Surfaces by Click Chemistry
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Bone morphogenetic protein 2 therapy for craniofacial surgery.

Darren M Smith1, Gregory M Cooper, Mark P Mooney

  • 1University of Pittsburgh, Division of Plastic Surgery, Pittsburgh, Pennsylvania, USA.

The Journal of Craniofacial Surgery
|September 25, 2008
PubMed
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Bone morphogenetic protein (BMP) 2 shows promise for pediatric craniofacial reconstruction, potentially offering a tissue-engineered bone solution. Further research is needed to confirm its safety and efficacy in this patient population.

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Area of Science:

  • Biomaterials Science
  • Regenerative Medicine
  • Pediatric Surgery

Background:

  • Pediatric craniofacial reconstruction (ages 2-10) presents challenges due to limited local bone and donor site morbidity.
  • Traditional bone grafts and alloplastic materials have drawbacks for growing craniofacial structures.

Purpose of the Study:

  • To review the literature on Bone Morphogenetic Protein (BMP)-2 for pediatric craniofacial surgery.
  • To assess BMP-2's potential as an off-the-shelf tissue-engineered bone construct.
  • To aid clinicians in analyzing the risks and benefits of BMP-2 in this context.

Main Methods:

  • Comprehensive literature review from the 1960s to the present.
  • Focus on BMP-2's osteoinductive mechanisms, basic science, and translational findings.
  • Inclusion of multidisciplinary clinical experiences and safety/efficacy analyses.

Main Results:

  • BMP-2 is utilized in spine and long-bone repair and emerging in plastic surgery.
  • It offers potential for tissue-engineered bone compatible with the craniofacial skeleton.
  • Safety and efficacy in pediatric craniofacial surgery require further investigation.

Conclusions:

  • BMP-2 presents a promising alternative to traditional bone grafting methods in pediatric craniofacial surgery.
  • Understanding its basic science, potential morbidities, and clinical data is crucial.
  • Further studies are necessary to optimize BMP-2 efficacy and ensure patient safety.