Electromagnetic field-mediated chitosan/gelatin/nano-hydroxyapatite and bone-derived scaffolds regulate the osteoblastic and chondrogenic phenotypes of adipose-derived stem cells to construct osteochondral tissue engineering niche in vitro.
Research
RF Safe Research Library
Jan 1, 2024
This in vitro study examined how electromagnetic field (EMF) coupling parameters and field direction interact with 2D versus 3D culture environments to influence adipose-derived stem cell (ADSC) proliferation and osteogenic/chondrogenic differentiation. The abstract reports different “optimal” magnetic flux densities…
Hydrogel-hydroxyapatite-monomeric collagen type-I scaffold with low-frequency electromagnetic field treatment enhances osteochondral repair in rabbits.
Research
RF Safe Research Library
Jan 1, 2021
This animal and in vitro study evaluated a composite osteochondral scaffold with bone marrow mesenchymal stem cells (BMSCs) combined with low-frequency electromagnetic field (EMF) stimulation. The authors report that EMF promoted BMSC proliferation and chondrogenic differentiation in vitro, partly via PI3K/AKT/mTOR…
Efficacy of pulsed electromagnetic fields and electromagnetic fields tuned to the ion cyclotron resonance frequency of Ca on chondrogenic differentiation.
Research
RF Safe Research Library
Jan 1, 2019
This in vitro study compared commonly used pulsed electromagnetic field (PEMF) exposures with electromagnetic fields tuned to satisfy the ion cyclotron resonance (ICR) condition for calcium. After 3 weeks, the calcium ICR condition was associated with increased glycosaminoglycans and type II collagen synthesis and…
The legacy effects of electromagnetic fields on bone marrow mesenchymal stem cell self-renewal and multiple differentiation potential.
Research
RF Safe Research Library
Jan 1, 2018
This animal study examined whether electromagnetic field (EMF) pretreatment has lasting (“legacy”) effects on rat bone marrow mesenchymal stem cells (BMSCs) and whether EMF-pretreated BMSC sheets improve fracture nonunion healing in rats. The authors report increased BMSC proliferation and enhanced…
Electromagnetic fields counteract IL-1β activity during chondrogenesis of bovine mesenchymal stem cells.
Research
RF Safe Research Library
Jan 1, 2015
This in vitro study examined whether electromagnetic fields (EMFs) influence chondrogenic differentiation of bovine mesenchymal stem cell pellets, with and without the inflammatory cytokine IL-1β. The authors report EMFs had limited effects on chondrogenesis in the absence of inflammation, but in the presence of…
Effects of low frequency electromagnetic fields on the chondrogenic differentiation of human mesenchymal stem cells.
Research
RF Safe Research Library
Jan 1, 2011
This in vitro study examined whether extremely low-frequency magnetic fields affect chondrogenic differentiation of human mesenchymal stem cells in pellet culture. Cells exposed for 3 weeks to a homogeneous sinusoidal 5 mT magnetic field showed increased collagen type II expression (significant at passage 6) and…