Migraine Sufferers Have Incomplete Brain Arteries: Scientists

Monday, 12 Aug 2013 12:11 PM

 

Share:
  Comment  |
   Contact Us  |
  Print  
|  A   A  
  Copy Shortlink

Migraine sufferers are more likely than other people to have an incomplete network of arteries that supply blood to the brain, researchers have found.

It was once believed that migraines were caused by dilation of blood vessels in the brain, while more recently it has been attributed to abnormal brain signal activity. This study suggests that blood vessels play a different role than previously suspected.

An incomplete network of arteries may increase a person's susceptibility to changes in brain blood flow, contributing to the abnormal brain signal activity that triggers migraines, according to the University of Pennsylvania researchers.

For the study, the investigators used a special MRI method to measure changes in blood flow in the brain, as well as magnetic resonance angiography to examine blood vessel structure.

"People with migraines actually have differences in the structure of their blood vessels -- this is something you are born with," study lead author Dr. Brett Cucchiara, an associate professor of neurology, said in a university news release.

"These differences seem to be associated with changes in blood flow in the brain, and it's possible that these changes may trigger migraine, which may explain why some people, for instance, notice that dehydration triggers their headaches," Cucchiara said.

The study included 170 people in three groups: those with no headaches, those with migraines with aura and those with migraines without aura. An incomplete network of arteries in the brain was found in 73 percent of people with migraines with aura, 67 percent of people with migraines without aura and 51 percent of those who were headache-free.

Arterial network abnormalities were most common in the back of the brain, where visual images are processed. This may explain why the most common migraine auras consist of visual symptoms such as seeing distortions, wavy lines or spots, the researchers said.
The study was published recently in the journal PLoS One.

Because both migraine headaches and the types of arterial structures seen in the study patients are common, Cucchiara's team noted that the association does not prove a cause-and-effect relationship. It is likely that the incomplete network of arteries is just one of many factors that could contribute to migraines, they said in the news release.
 

© HealthDay

Share:
  Comment  |
   Contact Us  |
  Print  
  Copy Shortlink
Around the Web
Join the Newsmax Community
Please review Community Guidelines before posting a comment.
>> Register to share your comments with the community.
>> Login if you are already a member.
blog comments powered by Disqus
 
Email:
Country
Zip Code:
Privacy: We never share your email.
 
Hot Topics
Follow Newsmax
Like us
on Facebook
Follow us
on Twitter
Add us
on Google Plus
Around the Web
Top Stories
You May Also Like

Health Officials Vow to Stop Ebola From Spreading in US

Tuesday, 30 Sep 2014 20:57 PM

A man who flew from Liberia to Texas has become the first patient infected with the deadly Ebola virus to be diagnosed i . . .

Spacing Between Sibling Births Linked to Autism Risk

Tuesday, 30 Sep 2014 19:13 PM

Children conceived either less than one year or more than five years after the birth of a sibling could be at increased  . . .

Light at Night May Hamper Breast Cancer Treatment: Study

Tuesday, 30 Sep 2014 19:08 PM

A study in rats hints that exposure to dim light at night may make human breast cancer tumors resistant to the chemother . . .

Most Commented

Newsmax, Moneynews, and Independent. American. are registered trademarks of Newsmax Media, Inc. Newsmax TV, NewsmaxWorld, NewsmaxHealth, are trademarks of Newsmax Media, Inc.

 
NEWSMAX.COM
America's News Page
©  Newsmax Media, Inc.
All Rights Reserved