This drug appears to provide a small but significant benefit in terms of cognition.

CNN: Better understanding of dementia leading to more effective therapies

"This may not sound like much, but to a patient with Alzheimer's disease at this point in their illness or their carers, any improvement in cognition or function that supports independence is valuable, " Howard adds.

CNN: Hard to tell, but drug helps as Alzheimer's progresses

The rationale for pursuing stem cell therapy in autism is based on encouraging results of unpublished data examining stem cell therapy in children with cerebral palsy, a group of disorders that affect not only movement, but learning, behavior and cognition.

FORBES: Stem Cell Therapy To Treat Autism?