Light-based therapy enhances recovery after spinal cord injury in rats by reducing tissue scarring and promoting nerve cell regeneration.
More than 900,000 people worldwide experience a spinal cord injury each year, primarily due to falls and motor vehicle accidents. These injuries often cause lifelong physical debilities, impairing mobility and reducing quality of life. A recent study in rats found that photobiomodulation (light-based therapy) enhanced recovery after a spinal cord injury.
Researchers investigated two light-based therapy methods using a rat model of spinal cord injury. One method used transcutaneous (through the skin) red-light or laser-light treatment, while the other used an implantable device.
The researchers found that both delivery methods produced comparable outcomes, with a daily one-minute dose of 660-nanometer light for seven days reducing tissue scarring at the injury site and enhancing functional recovery. They also noted increased levels of proteins associated with nerve cell regeneration and improved connectivity between cells in the injured spinal areas.
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These findings suggest that photobiomodulation enhances recovery after spinal injury in rats and holds potential for future therapeutic applications in humans.
Photobiomodulation employs specific wavelengths of light to stimulate biological processes within cells and tissues, triggering a cascade of physiological responses. Evidence suggests photobiomodulation has potential applications in medicine, dentistry, cosmetic procedures, and scientific research. Learn more about photobiomodulation in our overview article.