Preliminary, unpublished results from Stanford of an adult stem cell-based human clinical trial for treating stroke have yielded some promising data. The trial is the first of its kind in North America, according to an American Association of Neurological Surgeons press release.
A stroke occurs when blood flow to the brain is blocked either by a clot or a ruptured blood vessel. This attack disrupts the delivery of nutrients and oxygen to the brain and leads to cell death. Depending on the area of the stroke, survivors may lose their ability to speak, swallow, move their body, or recall memories. It is a leading cause of death, killing 130,000 people each year in the U.S., according to the National Stroke Association. There are about 7 million stroke survivors in the US over the age of 20.