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Bone Remodeling and Repair

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 Remodeling

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.

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Updated: May 13, 2026

Decellularized Apple-Derived Scaffolds for Bone Tissue Engineering In Vitro and In Vivo

Decellularized Apple-Derived Scaffolds for Bone Tissue Engineering In Vitro and In Vivo

Published on: February 23, 2024

Osteoinductive biomaterial geometries for bone regenerative engineering.

Tugba Ozdemir¹, Andrew M Higgins, Justin L Brown

¹Department of Bioengineering, The Pennsylvania State University, University Park, PA 16802, USA.

Current Pharmaceutical Design

|February 26, 2013

Summary

This summary is machine-generated.

Nanostructures in bone regenerative engineering enhance osseointegration by promoting osteoconductive and osteoinductive properties, offering a promising alternative to traditional bone grafts.

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Last Updated: May 13, 2026

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Distinctive Capillary Action by Micro-channels in Bone-like Templates can Enhance Recruitment of Cells for Restoration of Large Bony Defect

Distinctive Capillary Action by Micro-channels in Bone-like Templates can Enhance Recruitment of Cells for Restoration of Large Bony Defect

Published on: September 11, 2015

Area of Science:

Biomaterials Science
Regenerative Medicine
Nanotechnology

Background:

Bone graft procedures are common, with osseointegration being a key goal for synthetic implants.
Traditional bone grafts (autograft, allograft) have limitations like supply issues and inadequate properties.
Bone regenerative engineering utilizes stem cells, biomaterials, and growth factors for bone repair.

Purpose of the Study:

To review micro- and nano-architectures in bone regenerative engineering.
To explore how these architectures initiate osteoinductive signals.
To discuss clinical translation of nanostructure-based bone regeneration.

Main Methods:

Review of literature on polymeric micro- and nanostructures for bone regeneration.
Analysis of osteoconductive and osteoinductive properties of these structures.
Investigation of signaling pathways involved in osteoinduction by nanostructures.

Main Results:

Polymeric microstructures are osteoconductive but lack osteoinductivity.
Polymeric nanostructures (<1µm) can stimulate osteoinduction without growth factors.
Nanostructures demonstrate both osteoconductive and osteoinductive potential.

Conclusions:

Nanostructures offer a novel approach to bone regenerative engineering.
Understanding nanostructure-regulated osteoblastic differentiation is crucial.
Micro- and nano-architectures hold potential for clinical applications in bone repair.