A spinal cord injury (SCI) involves damage to the spinal cord, a bundle of nerve fibers that relays signals between the brain and the body. This damage can disrupt sensory and motor function. Worldwide, over 15 million people live with SCI. Most cases stem from trauma, such as falls, car accidents, or violence. Injuries can be complete, causing total loss of sensation and muscle function below the injury site, or incomplete, where some signals still pass through. Symptoms vary, ranging from numbness to paralysis, and can include bowel or bladder dysfunction.
SCI can lead to complications like pneumonia, infections, and blood clots. The risk of developing complications is very high. The injuries also significantly impact mental health, increasing the chances of depression. Recent research explores therapies like "dancing molecules" to promote nerve regeneration and reduce scar tissue. Researchers have also identified a drug, Thiorphan, that shows promise in improving hand function and neuronal regeneration when combined with stem cell grafts in SCI. Scientists have also developed lab-grown spinal cord organoids to test new regenerative therapies.
