Detecting Alzheimer's with DNA aptamers—new tool for an easy blood test

With aging populations on the rise, the need for better tools to diagnose and monitor Alzheimer's disease (AD), the most common cause of dementia, has never been more urgent. This disease is characterized by the gradual loss of nerve cells, a process known as neurodegeneration, which begins years before the onset of obvious symptoms. One way to detect this damage is to look for signs of injury to nerve cells.