After a heart attack, many patients are left with scar tissue around the heart. Scientists are using heart stem cells to promote the self-repair of the heart. In some cases, these can be delivered by the blood instead of being injected directly into the heart. Clinical trials are underway now to test this approach.
Scientists are turning human embryonic stem cells into special cells called oligodendrocyte progenitor cells that have been shown to support the health of the nerves in spinal cord injury. These cells can then be transplanted into the damaged spinal cord of patients and potentially support the health and restore function to the damaged nerves.
Scientists are turning embryonic stem cells into the retinal cells that are malfunctioning and dying in age-related macular degeneration (AMD). These retinal cells can be implanted into the back of the eye to determine if this will help slow the vision loss caused by AMD.