Neuroscience

Articles and news from the latest research reports.

166 notes

Are concussions related to Alzheimer’s disease?
A new study suggests that a history of concussion involving at least a momentary loss of consciousness may be related to the buildup of Alzheimer’s-associated plaques in the brain. The research is published in the December 26, 2013, online issue of Neurology®, the medical journal of the American Academy of Neurology.
"Interestingly, in people with a history of concussion, a difference in the amount of brain plaques was found only in those with memory and thinking problems, not in those who were cognitively normal," said study author Michelle Mielke, PhD, with Mayo Clinic in Rochester, Minn.
For the study, people from Olmsted County in Minnesota were given brain scans; these included 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 also 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 and 18 percent of the 141 with memory and thinking difficulties reported a concussion or head trauma.
The study found no difference in any brain scan measures among the people without memory and thinking impairments, whether or not they had head trauma. However, 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.
"Our results add merit to the idea that concussion and Alzheimer’s disease brain pathology may be related," said Mielke. "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."

Are concussions related to Alzheimer’s disease?

A new study suggests that a history of concussion involving at least a momentary loss of consciousness may be related to the buildup of Alzheimer’s-associated plaques in the brain. The research is published in the December 26, 2013, online issue of Neurology®, the medical journal of the American Academy of Neurology.

"Interestingly, in people with a history of concussion, a difference in the amount of brain plaques was found only in those with memory and thinking problems, not in those who were cognitively normal," said study author Michelle Mielke, PhD, with Mayo Clinic in Rochester, Minn.

For the study, people from Olmsted County in Minnesota were given brain scans; these included 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 also 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 and 18 percent of the 141 with memory and thinking difficulties reported a concussion or head trauma.

The study found no difference in any brain scan measures among the people without memory and thinking impairments, whether or not they had head trauma. However, 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.

"Our results add merit to the idea that concussion and Alzheimer’s disease brain pathology may be related," said Mielke. "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."

Filed under concussions alzheimer's disease memory cognitive impairment neuroscience science

  1. midnight-coffe reblogged this from neurosciencestuff
  2. alittlehummingbird reblogged this from neurosciencestuff
  3. ohwaitforme reblogged this from anna-kitten and added:
    God damn it. I’ve had four concussions :(
  4. zombieresponse-oh-no reblogged this from anna-kitten
  5. idk--im--weird reblogged this from neurosciencestuff
  6. anna-kitten reblogged this from neurosciencestuff
  7. belal671 reblogged this from archdvmon
  8. via-touching reblogged this from archdvmon
  9. archdvmon reblogged this from neurosciencestuff
  10. businessoutsider reblogged this from neurosciencestuff
  11. oh-dia reblogged this from neurosciencestuff
  12. tanyadnel reblogged this from neurosciencestuff
  13. melandrios reblogged this from neurosciencestuff
  14. bulbs-for-pigs reblogged this from neurosciencestuff
  15. perrydeplatyplus reblogged this from neurosciencestuff
  16. pocahontas-tbh reblogged this from neurosciencestuff
  17. mrhamptonhrm reblogged this from neurosciencestuff
  18. dermoosealini reblogged this from neurosciencestuff
  19. exquisitelymaverick reblogged this from neurosciencestuff
  20. holy-shit-8 reblogged this from neurosciencestuff
free counters