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Related Concept Videos

Bone Formation by Intramembranous Ossification01:29

Bone Formation by Intramembranous Ossification

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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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Bone Formation by Endochondral Ossification01:24

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Bone formation, or ossification, begins around the sixth to seventh week of embryonic development. Most bones develop from a cartilaginous template through the process of endochondral ossification. Cartilage formation begins when clusters of mesenchymal cells differentiate into chondrocytes. These chondrocytes proliferate rapidly and secrete an extracellular matrix that becomes encased in a membrane called the perichondrium. The resulting cartilage model provides a template that resembles the...
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Use of Human Perivascular Stem Cells for Bone Regeneration
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Muscle pouch implantation: an ectopic bone formation model.

Greg Asatrian1, Le Chang, Aaron W James

  • 1Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles, CA, USA.

Methods in Molecular Biology (Clifton, N.J.)
|September 1, 2014
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Summary

Ectopic bone formation, the growth of bone in non-bone tissues, is studied using animal models. This chapter details rodent models, focusing on intramuscular implantation, to understand osteogenesis and implant potential.

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Area of Science:

  • Biomedical Engineering
  • Regenerative Medicine
  • Orthopedic Research

Background:

  • Ectopic bone formation is the pathological ossification of soft tissues.
  • Understanding this process is crucial for regenerative medicine and orthopedic research.
  • Various animal models are utilized to study ectopic ossification and osteogenic potential.

Purpose of the Study:

  • To provide a comprehensive overview of ectopic ossification.
  • To review the history and clinical relevance of experimental models.
  • To detail a specific murine intramuscular implantation model for ectopic bone induction.

Main Methods:

  • Review of existing literature on ectopic ossification models.
  • Comparative analysis of subcutaneous, intramuscular, and renal capsule implantation in rodents.
  • Detailed description of a mouse intramuscular implantation surgical procedure.

Main Results:

  • Rodent models, particularly intramuscular implantation, are effective for studying ectopic bone formation.
  • Each model presents unique advantages and disadvantages regarding reproducibility and biological relevance.
  • The intramuscular model allows for controlled induction and examination of osteogenesis.

Conclusions:

  • Experimental models are essential for advancing the understanding of ectopic bone formation.
  • The mouse intramuscular implantation model offers a robust platform for evaluating osteogenic potential.
  • Further research using standardized models will facilitate clinical applications in tissue regeneration.