Related Experiment Video
Updated: Feb 7, 2026
12:04
Assessment of Bone Fracture Healing Using Micro-Computed Tomography
Published on: December 9, 2022
2.5K
Granulocyte-colony stimulating factor enhances bone fracture healing
Didier Moukoko1, Didier Pourquier2, Cécile Genovesio3
1Département de Chirurgie Orthopédique Pédiatrique, CHU Angers, 4 rue Larrey, 49100 Angers, France.
Clinical Biomechanics (Bristol, Avon)
|July 24, 2018
Summary
Granulocyte-colony stimulating factor significantly enhances bone fracture healing. This treatment, administered before or after surgery, accelerated healing and improved bone strength in rat models, suggesting clinical potential.
Area of Science:
- Orthopedics
- Regenerative Medicine
- Biomaterials Science
Background:
- Mesenchymal stem cells are crucial for bone repair.
- Granulocyte-colony stimulating factor (G-CSF) promotes progenitor cell release.
- G-CSF's role in fracture healing requires further investigation.
Purpose of the Study:
- To investigate the efficacy of low-dose G-CSF in stimulating bone fracture healing.
- To analyze the effects of G-CSF administration timing (pre- vs. post-operative) on fracture repair.
Main Methods:
- Adult male Sprague-Dawley rats underwent mid-femur osteotomy.
- Groups received daily subcutaneous injections of G-CSF (5 μg/kg) or saline for 5 days (pre- or post-operatively).
- Radiographic, histological, and biomechanical analyses were performed at 35 days.
Main Results:
- G-CSF treated groups showed significantly higher radiographic consolidation scores than controls.
- Femur stiffness and maximal failure force were substantially increased in G-CSF treated groups.
- Histological examination revealed accelerated bone consolidation in rats receiving G-CSF.
Conclusions:
- Low-dose G-CSF administration effectively stimulates early bone fracture healing.
- Both pre- and post-operative G-CSF treatment demonstrate significant benefits.
- G-CSF shows promise for clinical applications in fracture management and osteotomy.
Related Concept Videos
01:27Fractures: Bone Repair
5.5K
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...
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...
5.5K
02:16Transcription Factors
82.8K
Tissue-specific transcription factors contribute to diverse cellular functions in mammals. For example, the gene for beta globin, a major component of hemoglobin, is present in all cells of the body. However, it is only expressed in red blood cells because the transcription factors that can bind to the promoter sequences of the beta globin gene are only expressed in these cells. Tissue-specific transcription factors also ensure that mutations in these factors may impair only the function of...
82.8K
03:00Self-Evaluation: Self-Enhancement and Self-Verification
5.8K
Social psychologists have documented that feeling good about ourselves and maintaining positive self-esteem is a powerful motivator of human behavior (Tavris & Aronson, 2008). In the United States, members of the predominant culture typically think very highly of themselves and view themselves as good people who are above average on many desirable traits (Ehrlinger, Gilovich, & Ross, 2005). Often, our behavior, attitudes, and beliefs are affected when we experience a threat to our...
5.8K
01:16Bioavailability Enhancement: Drug Solubility Enhancement
264
Body:Bioavailability is a critical factor in determining a drug's effectiveness. It refers to the proportion of a drug that enters the circulation when introduced into the body and is, as a result, able to have an active effect. Enhancing bioavailability is essential for drugs with poor solubility, as it can significantly impact their therapeutic efficacy. Various methods are employed to increase the solubility of drugs, thereby enhancing their bioavailability.Micronization and nanonization are...
264
01:27Bioavailability Enhancement: Drug Permeability Enhancement
210
Body:After oral administration, poor permeability often limits the rate at which drugs are absorbed through the intestinal epithelium. Enhancing drug permeability is crucial for effective therapy, and several strategies have been developed to overcome this challenge.One effective strategy involves the use of lipid-based formulations. These formulations enhance dissolution and solubility, targeting physiological mechanisms to increase drug absorption. This includes stimulating bile salt...
210
04:01Factors Affecting Solubility
37.2K
Compared with pure water, the solubility of an ionic compound is less in aqueous solutions containing a common ion (one also produced by dissolution of the ionic compound). This is an example of a phenomenon known as the common ion effect, which is a consequence of the law of mass action that may be explained using Le Chȃtelier’s principle. Consider the dissolution of silver iodide:
37.2K