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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...
Essential Minerals for Bone Health01:31

Essential Minerals for Bone Health

The minerals contained in all of the food we consume are essential for our organ systems. However, certain essential minerals, such as calcium, phosphorus, magnesium, manganese, and fluoride, largely affect bone health.
Calcium and Phosphorus
Calcium is a critical component of bones, especially in the form of calcium phosphate and calcium carbonate. Since the body cannot make calcium, it must be obtained from the diet. However, calcium cannot be absorbed from the small intestine without...
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.
Hormones and Bone Tissue01:17

Hormones and Bone Tissue

The endocrine system produces and secretes hormones, which interact with the skeletal system. These hormones control bone growth, maintain bone once it is formed, and remodel it.
Hormones That Influence Osteoblasts and/or Maintain the Matrix
Several hormones are necessary for controlling bone growth and maintaining the bone matrix. The pituitary gland secretes growth hormone (GH), which, as its name implies, controls bone growth. This happens in several ways: first, it triggers chondrocyte...
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...
The Bone Matrix01:18

The Bone Matrix

Bone contains a relatively small number of cells entrenched in a matrix of collagen fibers that provide an adherent surface for inorganic salt crystals. Both components of the matrix, organic and inorganic, contribute to the unusual properties of bone. Without collagen, bones would be brittle and shatter easily. Without mineral crystals, bones would flex and provide little support. This can be observed by an experiment: when the minerals of a bone are dissolved by soaking the bone in acid or...

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Related Experiment Video

Updated: Jun 4, 2026

Biological Compatibility Profile on Biomaterials for Bone Regeneration
10:28

Biological Compatibility Profile on Biomaterials for Bone Regeneration

Published on: November 16, 2018

Lactoferrin: a biologically active molecule for bone regeneration.

A A Amini1, L S Nair

  • 1School of Dental Medicine, University of Connecticut Health Center, Farmington, Connecticut 06030, USA.

Current Medicinal Chemistry
|February 5, 2011
PubMed
Summary
This summary is machine-generated.

Lactoferrin, an iron-binding glycoprotein, promotes bone regeneration by stimulating osteoblasts and inhibiting bone resorption. This review highlights its anabolic effects and immune-modulating properties in osteoimmunology.

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Last Updated: Jun 4, 2026

Biological Compatibility Profile on Biomaterials for Bone Regeneration
10:28

Biological Compatibility Profile on Biomaterials for Bone Regeneration

Published on: November 16, 2018

Area of Science:

  • Biochemistry
  • Immunology
  • Regenerative Medicine

Background:

  • Lactoferrin, an iron-binding glycoprotein from the Siderophilin family, is abundant in milk and colostrum.
  • It plays a role in musculoskeletal regeneration by modulating cellular responses.
  • Lactoferrin exhibits diverse functions, including promoting osteoblast activity and inhibiting osteoclast bone resorption.

Purpose of the Study:

  • To review recent studies on lactoferrin's anabolic effects on bone tissue.
  • To summarize lactoferrin's role in modulating immune responses, particularly in osteoimmunology.

Main Methods:

  • Literature review of recent studies on lactoferrin.
  • Focus on research detailing bone regeneration and immune modulation.

Main Results:

  • Lactoferrin promotes osteoblast proliferation and differentiation.
  • It inhibits osteoclast-mediated bone resorption, contributing to bone health.
  • Human lactoferrin enhances neovascularization and modulates immune responses relevant to bone.

Conclusions:

  • Lactoferrin demonstrates significant anabolic effects on bone tissue.
  • Its ability to modulate immune responses makes it a key factor in osteoimmunology.
  • Lactoferrin shows promise as a therapeutic agent for skeletal regeneration.