Researchers identify common type of dementia similar to Alzheimer’s

Scientists have been puzzled by patients with signs of dementia but whose brains don’t show the aberrant proteins that are typical biomarkers of Alzheimers.  Now researchers say they have an explanation: a newly defined neurodegenerative disease whose symptoms are similar to Alzheimer’s but is caused by a different misbehaving protein. The disease, called LATE, seems to develop more slowly than Alzheimer’s and to appear later, when people are in their 80s and 90s.