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Related Concept Videos

Bone Cells and Tissue01:30

Bone Cells and Tissue

Bones contain a relatively small number of cells entrenched in a matrix of organic and inorganic components. Although bone cells compose only a small amount of the bone volume, they are crucial to its function. Four types of cells are found within the bone tissue— osteoblasts, osteocytes, osteogenic cells, and osteoclasts.
Osteoblasts and Osteocytes
The osteoblast is the bone cell responsible for forming new bone tissue. It is found in the growing portions of bone, including the periosteum and...
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.
Osteoclasts in Bone Remodeling01:31

Osteoclasts in Bone Remodeling

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...
Stem Cell Therapy for Tissue Regeneration01:21

Stem Cell Therapy for Tissue Regeneration

Stem cell therapy is a method used in regenerative medicine to repair and restore function to damaged tissues and organs. Stem cells have the potential to proliferate and differentiate into various tissue types, making them ideal candidates for tissue regeneration. For example, hematopoietic stem cell transplants are commonly used in blood cancer treatment to replenish damaged bone marrow and restore healthy blood cells.
Types of Stem Cells used in Stem Cell Therapy
The two main cell types that...
Growth of Cartilage and Bone Tissue01:27

Growth of Cartilage and Bone Tissue

Chondrocytes form a temporary cartilaginous model by dividing and secreting a thick gel-like extracellular matrix. Once the chondrocytes undergo programmed cell death, osteoblasts enter the site of the cartilaginous model. The process of replacing the temporary cartilaginous model with bone in an ordered manner is called endochondral ossification. In endochondral ossification, not all of the cartilage is replaced by bone tissue. Some cartilage that performs a protective and supportive function...
Fractures: Bone Repair01:27

Fractures: Bone Repair

Treatment for a fracture is based on the type of break, the bone affected, and the patient's age.
Minor fractures with no bone displacement are treated by immobilizing the fractured bone using a cast or splint. However, in the case of fractures with displaced bones, the broken bones are repositioned before immobilization to ensure successful healing without deformation and loss of function. The realignment of fractured bone ends is performed through a process called reduction. If the procedure...

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Integrated Bone Formation Through In Vivo Endochondral Ossification Using Mesenchymal Stem Cells
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Integrated Bone Formation Through In Vivo Endochondral Ossification Using Mesenchymal Stem Cells

Published on: July 14, 2023

Bone regeneration and stem cells.

K Arvidson1, B M Abdallah, L A Applegate

  • 1Department of Clinical Dentistry, Center for Clinical Resarch, Faculty of Medicine and Dentistry, University of Bergen, Bergen, Norway. kristina.arvidson@iko.uib.no

Journal of Cellular and Molecular Medicine
|December 7, 2010
PubMed
Summary
This summary is machine-generated.

This review explores bone tissue repair strategies, covering fracture healing, stem cells, platelet-rich plasma, and biomaterials for orthopaedic and maxillofacial applications.

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Area of Science:

  • Orthopaedic and Maxillofacial Surgery
  • Biomaterials Science
  • Regenerative Medicine

Background:

  • Bone tissue repair is crucial for orthopaedics and maxillofacial applications.
  • Challenges in normal fracture healing necessitate advanced regenerative strategies.
  • Tissue engineering offers promising solutions for bone and soft tissue regeneration.

Purpose of the Study:

  • To review key research areas in orthopaedic and maxillofacial bone tissue repair.
  • To discuss advancements in biomaterial scaffolds and stem cell therapies.
  • To explore the role of platelet-rich plasma and molecular markers in osteogenesis.

Main Methods:

  • Literature review of current research in bone tissue engineering.
  • Discussion of stem cell types, including mesenchymal and foetal stem cells.
  • Analysis of biomaterial advancements and bioactive molecule incorporation.

Main Results:

  • Mesenchymal stem cells and foetal stem cells show potential for bone regeneration.
  • Platelet-rich plasma demonstrates efficacy in promoting tissue repair.
  • Biomaterial scaffolds are being engineered with bioactive molecules for enhanced regeneration.

Conclusions:

  • A multidisciplinary approach combining stem cells, biomaterials, and growth factors is key for effective bone repair.
  • Further research into molecular markers and sex steroid effects can optimize regenerative therapies.
  • Advances in materials science are critical for developing scaffolds that meet specific tissue regeneration requirements.