facebook
twitter
rss
account
search
search
 

Concussion, Alzheimer's brain pathology may be related

Dec. 27, 2013 at 9:25 AM   |   Comments

| License Photo
ROCHESTER, Minn., Dec. 27 (UPI) -- A history of concussion involving at least a momentary loss of consciousness may be linked to Alzheimer's-associated plaques in the brain, U.S. researchers say.

The study, published in the journal Neurology, found people with memory and thinking impairments and a history of head trauma had levels of amyloid plaques an average of 18 percent higher than those with no head trauma history.

Study author Michelle Mielke of the Mayo Clinic in Rochester, Minn., said the study involved people from Olmsted County in Minnesota, who were given brain scans, including 448 people without any signs of memory problems and 141 people with memory and thinking problems called mild cognitive impairment.

Participants, who were all age 70 or older, were asked about whether they had ever experienced a brain injury that involved any loss of consciousness or memory.

Of the 448 people without any thinking or memory problems, 17 percent reported a brain injury, while 18 percent of the 141 with memory and thinking difficulties reported a concussion or head trauma, the study said.

The study found no difference in any brain scan measures among those without memory and thinking impairments, whether or not they had head trauma, but those with cognition and memory problems had higher levels of amyloid plaques.

"Our results add merit to the idea that concussion and Alzheimer's disease brain pathology may be related," Mielke said in a statement. "However, the fact that we did not find a relationship in those without memory and thinking problems suggests that any association between head trauma and amyloid is complex."

© 2013 United Press International, Inc. All Rights Reserved. Any reproduction, republication, redistribution and/or modification of any UPI content is expressly prohibited without UPI's prior written consent.
Recommended UPI Stories
Featured UPI Collection
trending
Celebrity Couples of 2014 [PHOTOS]

Celebrity Couples of 2014 [PHOTOS]

Most Popular
1
Daughters more likely than sons to care for elder parents
2
India asks Pepsi to cut down on sugar in its soft drinks
3
Child vaccination rates are high, CDC says
4
Yoga guru BKS Iyengar dies at 95
5
NIH to test safety of Ebola vaccine candidate
Trending News
Video
x
Feedback